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 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

Enter your details below and I’ll send it to your inbox instantly.

Free. No generic tips. No fluff.
Just real direct-sales math.

What you’ll get

With this calculator, you’ll quickly see:

Profit after ads per copy

Net margin before and after ads

Break-even CPA / max CAC

Direct sales needed per mo/yr

Whether your current direct-sales setup is actually scalable

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.

3 books
9 months
10,000+ paperbacks shipped from my apartment
5.7x ROAS
6-figure revenue
Market size: Only 6 million people
No Amazon. No publisher. No POD. No $0.99 ebooks.

If I can build this from scratch here, you can make it work anywhere.