The short answer: your daily words and your book length decide everything
At 1,200 words a day, a 75,000-word book needs 63 drafting days plus a 45-day editing and production buffer, about 108 days per book, which works out to 3.4 books a year — a rapid cadence. At 4.99 dollars with 45 percent series read-through, that pace implies roughly 17,100 dollars in illustrative annual revenue under the planner's stated assumptions. Cut your output to 500 words a day and the same manuscript needs 150 drafting days plus the same buffer, 195 days per book, which is 1.9 books a year — steady, not rapid. That single comparison is the whole subject of release planning: daily output and finished length determine your calendar, and your calendar determines how many chances per year you get to earn.
Most authors ask the cadence question backwards. They ask how often they should publish, as if some industry rule sets the number. The workable question runs the other direction: given the words you truly draft on writing days and the length your readers expect, how many finished books can one year hold. Answer that honestly and the schedule builds itself. This page walks through the arithmetic step by step, shows two fully worked hypothetical cases, explains what each cadence band demands, covers genre differences, lists the ways the plan breaks, and tells you which figures to keep watching month after month.
How the planner turns words into a calendar
The tool performs four calculations in order, and each one feeds the next. Nothing hides inside. Every rate below is an illustrative planning assumption you can replace with your own figures, not measured market data and not a prediction of your sales.
First, drafting days. Divide finished book length by the words you draft per writing day, rounding up. A 75,000-word novel at 1,200 words a day is 62.5, rounded to 63 drafting days. A 100,000-word fantasy at 400 words a day is exactly 250 drafting days. A 60,000-word memoir at 800 words a day is 75 drafting days. The rounding matters because a half day of drafting still consumes a calendar day, and ignoring fractions is how schedules quietly slip by a week.
Second, total days per book. Add a fixed 45-day editing and production buffer to the drafting days. That buffer stands in for developmental editing, copyediting, proofreading, cover design, interior formatting, uploading, and one ordinary delay of about two weeks. It applies to every book at every length because a short book still needs a cover, a proofread, and a retail upload. So the 75,000-word novel at 63 drafting days becomes 108 total days, and the 100,000-word fantasy at 250 drafting days becomes 295 total days.
Third, books per year. Divide 365 by total days per book. The 108-day book yields 3.38 books a year. The 295-day book yields 1.24 books a year. The 195-day book from the 500-words-a-day example yields 1.87 books a year. This figure is a rate, not a promise that you will ship fractional books — it tells you whether twelve months hold three launches, two, one, or less than one.
Fourth, the cadence label and the illustrative revenue. The label bands are rapid at 3 or more books a year, steady from 1.5 up to 3, annual from 0.75 up to 1.5, and slow below 0.75. Revenue per book equals 1,000 illustrative readers times your ebook price times a 70 percent royalty times a read-through multiplier of 1 plus your read-through rate. Annual revenue equals revenue per book times books per year. At 4.99 dollars, 70 percent royalty, and 45 percent read-through, one book represents 1,000 times 4.99 times 0.70 times 1.45, which is 5,064.85 dollars of illustrative per-book revenue. Multiply by 3.38 books and you get about 17,117 dollars for the year.
Notice what the formula treats as fixed and what it treats as yours. The 1,000 readers, the 70 percent royalty, and the 45-day buffer are planning assumptions shared across every run so different paces compare fairly. Your words per day, your book length, your price, and your read-through are the levers that move the result. Change a lever and watch the calendar respond — that response is the entire point of the tool.
Reading your cadence label without fooling yourself
Rapid means three or more finished books inside twelve months. Concretely, a 70,000-word romance at 1,500 words a day needs 47 drafting days plus 45 buffer, 92 days per book, which is 3.97 books a year. A 60,000-word cozy mystery at 1,000 words a day needs 60 plus 45, 105 days, which is 3.48 a year. Rapid keeps a series visible: readers finish one installment while the next is already in production, and each launch lifts the backlist behind it. The cost is structural. You are drafting one book while another sits with the editor and a third is in proofreading, which means three sets of deadlines overlap at all times. Authors who hold rapid pace for years almost always have standing bookings — the same editor, the same cover designer, reserved months ahead — because hunting for freelancers between books burns the buffer to zero.
Steady means roughly two books a year, the band from 1.5 to just under 3. A 90,000-word thriller at 800 words a day needs 113 drafting days plus 45, 158 total, which is 2.31 books a year. An 80,000-word memoir at 600 words a day needs 134 plus 45, 179 total, which is 2.04 a year. Steady suits writers with day jobs who draft most mornings, and it suits genres where each book needs research or a complex plot. Two launches a year still give the backlist a regular lift, and the gaps between deadlines leave room for illness, travel, and the month where chapter twelve refuses to work.
Annual means about one book a year, the band from 0.75 to 1.5. A 110,000-word fantasy at 400 words a day needs 275 plus 45, 320 days, which is 1.14 books a year. A 65,000-word nonfiction book at 300 careful words a day needs 217 plus 45, 262 days, which is 1.39 a year. Annual is respectable for doorstop fantasies, heavily researched nonfiction, and literary projects that need long revision. The danger is drift: with eleven months between deadlines, a lost month is invisible until it is suddenly three, so annual writers need firmer milestones than rapid ones, not looser ones.
Slow means under 0.75 books a year — the book takes longer than sixteen months. A 120,000-word epic at 200 words a day needs 600 drafting days plus 45, 645 total, which is 0.57 books a year. Slow usually signals one of three situations: the daily word count is genuinely low, the book is very long, or writing days happen twice a week and the input already averages those gaps away. None of those is a moral failure. But slow has a commercial consequence worth facing directly: series readers forget plot threads across a two-year gap, and each launch effectively restarts audience-building from zero. If slow is your reality, shorter books, higher daily words, or standalone stories are structural fixes, not motivational ones.
Where revenue comes from in this model
The revenue figure exists to show how pace and read-through multiply, not to forecast your bank balance. Walk through the per-book math once with your own eyes so the annual figure never looks like magic.
Start with the reader baseline. The planner assumes 1,000 readers buy or borrow book one in a comparable window for every release. That number is deliberately round and deliberately identical for all users. Its job is to hold audience constant so you can see what pace alone changes. If your last launch reached 400 first-month readers, scale the revenue output by 0.4 in your head. If it reached 3,000, scale by 3. The comparison between two of your own cadences stays valid either way, because both sides share the baseline.
Next comes price and royalty. Multiply readers by price, then by 70 percent. At 4.99 dollars that is 1,000 times 4.99 times 0.70, which is 3,493 dollars of baseline book-one revenue. At 2.99 dollars it is 1,000 times 2.99 times 0.70, which is 2,093 dollars. At 7.99 dollars it is 1,000 times 7.99 times 0.70, which is 5,593 dollars. Price moves revenue without touching the calendar at all — a useful separation, because it stops writers from imagining that a higher price buys them extra months.
Then the read-through multiplier. If 45 percent of book-one readers buy book two, each book-one reader is worth 1.45 sales across the series opening, so multiply by 1.45. The 3,493-dollar baseline becomes 5,064.85 dollars. At 70 percent read-through the multiplier is 1.70 and the same book represents 5,938.10 dollars. At 20 percent it is 1.20 and 4,191.60 dollars. This is why series writers obsess over the end of book one: a ten-point gain in read-through lifts every future launch, while a ten-point loss taxes all of them equally.
Finally, multiply per-book revenue by books per year. The rapid romance writer at 3.38 books times 5,064.85 dollars lands near 17,117 dollars. The annual fantasy writer at 1.24 books with 60 percent read-through earns 1,000 times 4.99 times 0.70 times 1.60, which is 5,588.80 per book, times 1.24, which is about 6,930 dollars a year. Same price point, similar skill, very different totals — the gap comes from pace multiplied by read-through, which is exactly the interaction the planner exists to display.
Think of the output as tiers rather than exact dollars. Rapid pace with strong read-through is the top tier, where each launch compounds the last. Steady pace with mid-range read-through is the middle tier, where income arrives in two yearly pulses. Annual pace is the lower tier regardless of read-through, because one multiplier event per year cannot compound. Slow pace with weak read-through is the bottom tier, where each book must nearly pay for itself alone. Find your tier first; argue about exact dollars only after your real reader counts replace the 1,000-reader stand-in.
Illustrative example A, a hypothetical steady romance writer
Consider a hypothetical writer — entirely invented for illustration — who drafts 900 words each weekday morning before work and writes 55,000-word contemporary romances. Her writing-day output is 900, her book length is 55,000, her price is 3.99 dollars, and her read-through sits at 55 percent because her cliffhangers are gentle but her characters carry forward.
Drafting days: 55,000 divided by 900 is 61.1, rounded up to 62. Total days: 62 plus 45 equals 107. Books per year: 365 divided by 107 is 3.41 — rapid, just over the line. Per-book revenue: 1,000 times 3.99 times 0.70 times 1.55 equals 4,329.15 dollars. Annual illustrative revenue: 4,329.15 times 3.41, about 14,762 dollars.
Now watch what changes when one lever moves. Suppose she lengthens her books to 70,000 words to satisfy readers asking for more story. Drafting becomes 70,000 divided by 900, which is 77.8, rounded to 78. Total is 123 days. Books per year fall to 2.97 — steady. Per-book revenue is unchanged at 4,329.15 dollars, but annual revenue drops to about 12,858 dollars. Fifteen thousand extra words per book cost her roughly half a book a year and about 1,900 illustrative dollars, unless the longer books lift read-through enough to compensate. That tradeoff calculation — longer books versus more books, mediated by read-through — is the decision this planner was built to support.
Suppose instead she keeps 55,000 words but her mornings shrink to 600 words after a schedule change. Drafting becomes 92 days, total 137, books per year 2.66, annual revenue about 11,516 dollars. Same books, same readers, same price — 3,200 dollars less per year from one slower hour each morning. The lesson is not to panic about any single number. The lesson is that daily words are the highest-leverage input in the entire system, so protecting the writing hour repays more than any cover redesign or pricing experiment.
Hypothetical example B, an illustrative slow-to-annual fantasy case
Take a second invented case, labeled hypothetical throughout: a fantasy author drafting 350 words a day on 130,000-word epics, priced at 5.99 dollars, with 65 percent read-through because his worldbuilding keeps series readers loyal. Drafting days: 130,000 divided by 350 is 371.4, rounded to 372. Total days: 417. Books per year: 365 divided by 417 is 0.88 — annual, near the bottom of the band. Per-book revenue: 1,000 times 5.99 times 0.70 times 1.65 equals 6,918.45 dollars. Annual illustrative revenue: 6,918.45 times 0.88, about 6,088 dollars.
His situation looks discouraging until he tests structural fixes instead of motivational ones. Option one: split each epic into two 65,000-word volumes at the same daily pace. Drafting per volume is 186 days, total 231, books per year 1.58 — steady. Per-volume revenue at the same read-through would be roughly the same 6,918.45 dollars only if readers pay full price twice, which they may resist, so he discounts volume one to 3.99 as a series entry: 1,000 times 3.99 times 0.70 times 1.65 equals 4,608.45 per volume, times 1.58 volumes, about 7,281 dollars a year — better, with twice the launch events. Option two: raise daily words from 350 to 500 through dictated first drafts. Drafting falls to 260 days, total 305, books per year 1.20, annual revenue about 8,302 dollars at unchanged price and read-through. Option three: accept annual pace and raise the price to 7.99 for premium long books: per-book revenue becomes 1,000 times 7.99 times 0.70 times 1.65, which is 9,228.45, times 0.88, about 8,121 dollars.
All three options beat the starting position, and the planner shows why without any change in talent or luck. Shorter volumes add launch events. Faster drafting adds books per year. Higher prices raise per-book revenue at fixed pace. Most real authors combine two of the three — and the honest way to choose is to run your own numbers three times, once per option, and compare the annual column.
Genre-specific guidance for setting your inputs
Romance rewards pace more than any other commercial genre. Reader appetite for new series entries is high, typical category lengths run 50,000 to 75,000 words, and read-through rates of 50 to 70 percent are achievable with connected characters. Enter your true series length — a 55,000-word contemporary plans very differently from a 95,000-word romantasy — and be skeptical of daily counts above 2,000 unless you have sustained them for a full book before. Romance writers fail this plan most often by entering aspirational word counts; the fix is to average the last 30 writing days from your actual records.
Thriller and mystery sit in the middle on length and reward consistency over bursts. A 75,000 to 90,000-word thriller at 800 to 1,000 words a day lands in steady cadence, which matches how these series sell: loyal readers who buy every installment on release week. Plotting method matters here more than raw speed. If you outline tightly, your drafting days are real drafting; if you write into the fog, add 15 percent to book length mentally to account for discarded scenes, or equivalently reduce daily words by 15 percent. Either adjustment keeps the calendar honest.
Fantasy and science fiction run long, which punishes pace automatically. A 120,000-word epic at 500 words a day is 240 drafting days plus 45, 285 total, 1.28 books a year — annual. Accept that arithmetic before you promise readers a book every six months. Fantasy read-through often runs higher than other genres, 55 to 75 percent, which partly offsets slower pace in the revenue math. The genre-specific trap is worldbuilding time that never reaches the page: weeks of maps and magic systems feel like progress but produce zero drafting days, so either count them inside the 45-day buffer explicitly or admit the buffer needs to be 60 days for your process.
Nonfiction behaves differently because authority substitutes for frequency. A 50,000-word practical guide at 400 careful words a day is 125 drafting days plus 45, 170 total, 2.15 books a year — steady on paper. But nonfiction books keep selling through search and professional reputation for years, so one strong book can outperform three rushed ones. Enter read-through honestly low for standalone nonfiction, often 10 to 25 percent, since few readers of a productivity book buy the next one automatically. If your nonfiction is a true series with sequential courses, use series-level read-through from your actual sales reports instead.
Memoir and literary projects need the most conservative inputs. Prose quality dominates, revision cycles run long, and 45 days of buffer may understate reality — many literary authors spend as long revising as drafting. If your last book took four months to revise, your effective buffer is 120 days, not 45, and you should divide by that larger total when judging feasibility even though the tool holds 45 constant for comparability. Price these books on their merits and treat the revenue figure as directional only, since literary sales patterns follow prizes, reviews, and events rather than launch cadence.
Across all genres, one rule holds: enter the book you actually write, not the book you wish you wrote. The 40,000-word novella series you ship beats the 150,000-word epic you abandon, and the planner will show you exactly how much the shorter length buys in books per year.
Edge cases and failure modes the arithmetic will not catch
Zero writing days break every formula, and the planner says so directly: at zero words a day, books per year is zero and revenue is zero. The subtler version is the two-days-a-week writer who enters 1,500 words because that is true on Saturdays. If only two days a week produce words, the honest daily input depends on how you count: either enter 1,500 and accept that the calendar assumes daily output, then halve the books-per-year result yourself, or pre-average to roughly 430 words per calendar day and enter that. Both approaches work; mixing them — entering peak-day words while expecting calendar-day results — is the single most common planning error.
Very high daily counts deserve a durability test. Anyone can draft 3,000 words in a day; few sustain it across 25 drafting days without quality collapse that the editor then pays for in extra revision weeks. If your entered pace exceeds your longest sustained pace by more than half, multiply drafting days by 1.25 as a personal stress test and see whether the cadence label survives. A rapid plan that becomes steady under stress testing was never rapid — it was optimistic.
Very short books create a buffer problem in reverse. A 20,000-word novella at 1,000 words a day drafts in 20 days, but the 45-day buffer still applies in full, giving 65 days per book and 5.6 books a year on paper. In practice, editors and designers cannot always turn around six novellas a year for one client, and readers may resist monthly launches at full price. Cap your planning at four books a year for sanity unless you have already shipped four in a year with the same team, and confirm your freelancers can hold the rhythm before announcing it.
Very long books expose the fixed-buffer assumption. On a 200,000-word epic, editing genuinely takes longer than on a 60,000-word romance — more pages to copyedit, more continuity to check, longer proofreading. The planner keeps 45 days for comparability, so epic writers should mentally add 15 to 30 days and recheck the label. If your book crosses from steady to annual under that adjustment, plan publicly for annual and deliver early rather than promising steady and apologizing.
Read-through at the extremes distorts revenue interpretation. At 0 percent the series multiplier is 1.0 and every book stands alone, which correctly punishes slow standalone writers. At 90 percent or above, the multiplier nears 2.0 and the model may flatter a slow series beyond what real sell-through sustains across five or more books, since later-book drop-off compounds. Treat read-through above 75 percent as provisional until three full books of sales history confirm it.
Price at zero — permafree first-in-series — zeroes the revenue column by design. That is not a failure; it is the strategy made visible. A free book one earns through read-through to paid sequels, so judge permafree plans by books two and beyond, and consider entering the average paid sequel price with your measured read-through to see the strategy's real math.
Finally, life events ignore calendars. Illness, moves, new jobs, new children, and grief each erase months, and no planner prices them in. The practical defense is one unallocated quarter per year: plan three books while hoping for four, or two while hoping for three. The buffer inside each book covers production slips; only an empty quarter covers life.
Keeping the buffer sacred: editing, production, and scheduling
The 45-day buffer fails most often not because 45 days is wrong but because authors spend it twice — once drafting late, once producing. Guard it with three concrete practices.
First, book freelancers from the calendar, not from the manuscript. When drafting starts, the editor should already hold a start date 63 or 100 or 250 days out, and the cover designer should hold a slot in the same window. Authors who finish drafting and then begin searching lose three to six weeks to availability alone, which converts a rapid plan into a steady result without changing a single word of output. A designer booked six months ahead is a planning input; a designer you hope to find is a wish.
Second, split the buffer visibly across its jobs. A workable default is 14 days for developmental response and revision, 10 for copyediting, 7 for proofreading, 7 for formatting and upload, and 7 unassigned for the delay you cannot yet name. When any phase overruns, you see immediately which later phase pays for it, and you decide consciously — trim proofreading from seven days to five, or shift launch by a week — instead of discovering the collision on upload day.
Third, freeze the manuscript at the buffer boundary. Drafting days end when drafting ends; changes during proofreading should be typos and continuity errors, not new scenes. Every rewritten chapter inside the buffer consumes days priced for formatting and upload, and two such chapters quietly convert a 108-day book into a 120-day one. If a book needs structural surgery after developmental edits, restart its clock honestly: add the extra drafting days to the total and accept the revised books-per-year figure rather than pretending the original schedule survived.
Questions authors ask next, answered in depth
How does writing speed interact with book quality, and should faster drafting worry you. Speed itself does not degrade prose; skipped revision does. A 2,000-words-a-day drafter who revises in three passes often ships cleaner copy than a 300-words-a-day writer who revises once while resentful. Judge your pace by the revision load it creates: if your editor's bills and correction counts stay flat as daily words rise, the pace is genuine. If corrections climb steeply past a threshold, that threshold — not your fastest day — is your plannable speed. Enter the fastest pace your revision process absorbs without extra passes.
Should a new series launch with a backlog, and how does that change the calendar. A backlog of two or three finished books compresses launch spacing without changing drafting pace: you can release monthly while writing at an annual rhythm, until the backlog empties. The planner measures sustainable pace, not launch-week theatrics, so run it on drafting speed either way. If the result says annual but you hold three finished books, you get one year of rapid-looking launches followed by the annual reality — schedule the fourth book's drafting to start the week of the first launch, or the gap after book three will be a year long and readers will feel misled.
When is slowing down the commercially smarter move. When read-through is high and books are long, each additional book adds less than the quality it risks. A fantasy series at 70 percent read-through earns nearly double per reader across two books; rushing book three in six months and dropping to 40 percent through disappointed reviews destroys more revenue than the extra half-book per year creates. Run the planner twice — your current pace and a slower pace with higher read-through — and compare annual columns. If the slower run wins or ties, take the slower schedule and spend the freed weeks on endings, which is where read-through is truly decided.
How should part-time writers count their days without lying to themselves. Track four weeks of actual output day by day, including zeros, then compute two numbers: words per writing day and writing days per week. Multiply them for words per calendar week, divide by seven for a calendar-day equivalent, and enter that equivalent as daily words. A writer producing 1,400 words on each of three weekly sessions averages 600 calendar-day words; entering 1,400 plans a phantom full-time schedule, while entering 600 plans the real one. Recompute quarterly, because session frequency drifts with seasons and workloads.
Does wide versus exclusive distribution change anything in this math. Distribution changes per-reader value, not days per book, so it enters through price and the reader baseline rather than pace. If exclusivity bonuses effectively raise your per-reader revenue by 20 percent, scale the revenue column up by that factor in your head; the cadence label stands unchanged. Do not let distribution debates delay drafting — the calendar is indifferent to where files are uploaded.
What actually raises read-through, since the multiplier matters so much. Endings that close the installment arc while opening a series question, consistent viewpoint characters across volumes, comparable length between books so no volume feels like filler, and pricing that makes book two an easy yes after a satisfying book one. Each of these is craft plus packaging, measurable only after publication — which is why the planner takes your measured rate as an input instead of asserting one. Improve the books, re-measure across a full quarter, then re-run the plan with the new figure.
Where these numbers live after today
A cadence plan rots quietly when its inputs go stale, because daily words drift and book lengths creep while nobody recalculates. Keep a small running log — date, words drafted, project, and any revision days — and recompute your pace from the trailing thirty days at each month's end. Author Desk at /author-desk is the natural home for that habit: keep your drafting averages, series read-through, and launch dates in one place there so each new plan starts from measured figures instead of memory. Revisit the full calculation every quarter, or whenever a book's length, your schedule, or your measured read-through shifts by more than a tenth. A planner consulted four times a year stays honest; one consulted once becomes nostalgia.
When the quarterly review shows drift, adjust the smallest lever first. Ten extra minutes of drafting, five thousand fewer words of scope, or one firm freelancer booking usually restores a slipping cadence without drama. Reserve large responses — splitting volumes, dictating drafts, repricing the series — for persistent gaps confirmed across two consecutive quarters. Planning works when it is maintenance, a brief monthly check and a quarterly recalibration, rather than an annual crisis followed by an ambitious spreadsheet nobody opens again.