Find out exactly how many books you need to sell direct to replace your income (and how much you can afford to pay for a reader)
If you sell your direct from your own website, this free calculator shows your real profit per copy, your break-even CPA / max CAC, and whether your current model can actually support scale.
Who this is for
This is for authors already selling direct who want to know:
- how much they actually keep per book after print, shipping, fees, tax, and ads
- whether they can profitably run paid traffic
- how many books they’d need to sell to replace their income
- whether they have a book problem, a funnel problem, or a money model problem
Why this matters
Most authors look at revenue and think they’re doing better than they are.
Revenue is vanity.
What matters is:
- what you keep,
- what you can spend to acquire a reader,
- and whether the model still works when you scale.
If you don’t know those numbers, you’re not scaling a business. You’re guessing.
Nobody else is coming to sell your book.
So before you write another launch sequence, run another ad, or blame the algorithm again — know your numbers first.
Get the free Direct Author Profit Calculator
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Just real direct-sales math.
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What you’ll get
With this calculator, you’ll quickly see:
Why listen to me
I’m not an “author marketer” who learned a bit of ads.
I’m a self-published fiction author who sells direct off my own site — and a 10-year digital marketer for US e-commerce and SaaS companies.
“If I can make this work in a small third-world market, shipping physical paperbacks out of my own place, you can make it work too.”