Book profit calculator
What will you actually keep?
Three numbers. Amazon’s fees are filled in for you.
If the price drops
Competition pushes prices down. Does the book still work?
See the math
| Sells for | |
| Amazon referral fee | |
| Closing fee (per book) | |
| FBA fulfillment fee | |
| What you paid | |
| Shipping & prep to Amazon | |
| Storage & other | |
| You keep |
Return on cash = what you keep ÷ what you paid plus shipping, prep, storage and other costs.
Adjust costs and fees
Three things to know before calling a $50 book profitable
Selling price is not profit
Referral fees, the closing fee, fulfillment, shipping and what you paid all come out before anything reaches you.
Demand matters
A high-margin book that rarely sells ties up your cash far longer than a decent book that moves. “Fast enough” depends on the category and your strategy.
Competition can erase the margin
If more sellers pile in and the price falls after you buy, the math you did in the aisle may not hold. That’s what the price-drop row is for.
Two books, worked out
The pricier book earns more dollars. The cheaper one does far more with every dollar you spend. Tap one to try it.
Real Amazon US book fees as of Sept 2026. Purchase, shipping and prep costs are example assumptions.