Free Amazon FBA Calculators

Fee and profit math before you order inventory. Updated for 2026. No signup.

Suggested workflow

  1. Profit calculator: net profit after fees
  2. BSR to sales: rough demand estimate
  3. Sourcing workflow guide

Core calculators (use these first)

More free tools

Extra planners. Results depend on the numbers you enter.

Start with true profit

Most sellers lose money by ignoring fees. Run the profit calculator before you source.

Open profit calculator →