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FBA Profit Calculator

Simple, fast, and free calculator for Amazon FBA sellers.

FBA Profit Calculator

Results

Profit Per Unit$0.00
Total Profit (1 units)$0.00
Margin0.00%
ROI0.00%
Break-even price$0.00

How it works

This calculator estimates your unit economics and overall profitability for Amazon FBA products.

  • costPerUnit = buyCost + shipCost + amazonFee + otherCost
  • totalCost = costPerUnit × units
  • revenue = sellPrice × units
  • totalProfit = revenue − totalCost
  • profitPerUnit = sellPrice − costPerUnit
  • margin% = totalProfit ÷ revenue
  • ROI% = totalProfit ÷ totalCost
  • break-even price = costPerUnit

All money inputs are per unit; empty values count as 0. Units default to 1. Division-by-zero is guarded. Negative results are highlighted.

Inputs explained

  • Currency: Display format only (USD/EUR/GBP).
  • Number of Units: Integer, minimum 1. For planning, try 100.
  • Product Buy Cost: Purchase cost per unit.
  • Shipping Cost: Freight/inbound cost per unit (include domestic leg + international share if applicable).
  • Amazon Fees: Referral (commission) + FBA fulfillment fee per unit.
  • Other Costs: Packaging, marketing spend, returns/write-offs allocation per unit.
  • Selling Price: Pre-tax selling price. If you price tax-inclusive, adjust inputs accordingly.

Examples

Profitable case

units = 100; buy=5.00; ship=1.00; amazon=4.00; other=0.50; sell=18.00

  • costPerUnit = 10.50 → profitPerUnit = 7.50
  • totalProfit = 750.00; margin ≈ 41.67%; ROI ≈ 71.43%
  • break-even price = 10.50

Break-even

same costs; sell=10.50 → profit=0, margin=0%, ROI=0%

Loss-making

same costs; sell=9.00 → profitPerUnit = -1.50; totalProfit = -150.00; margin ≈ -16.67%; ROI ≈ -14.29%

Note: Percentages rounded to two decimals.

Profitability tips

  • Optimize dimensions/weight to lower FBA fulfillment fee tier.
  • Consolidate packaging and labeling to reduce per-unit handling cost.
  • Negotiate freight and use efficient cartonization to cut shipping cost.
  • Improve conversion (images, A+ content, reviews) to support higher price.
  • Increase AOV via bundles/variations; test dynamic pricing.
  • Reduce return rate with accurate listings and quality control.
  • Plan inventory to avoid long-term storage and peak-season surcharges.
  • Track ad efficiency (ACOS/TACOS); trim unprofitable keywords.
  • Use coupons/promotions only when net ROI remains positive.

FAQ

What is the difference between Margin and ROI?
Margin = Profit / Revenue. ROI = Profit / Total Cost. Margin tells how much of each dollar of sales is profit; ROI tells how much profit you earn per dollar spent.
What does Amazon Fees include?
It should include both the referral (commission) fee and the FBA fulfillment fee per unit. If you use other programs (e.g., Small & Light), include the effective per-unit fee.
Why can the result be negative?
If sell price is below total per-unit cost or your costs are underestimated, profit becomes negative. This helps you identify a loss-making price point.
What is a reasonable profit target?
It varies by category and risk. Many sellers aim for 30–50% margin or 50%+ ROI for new products. Adjust to your niche and inventory turns.
Can this calculator import ASIN and auto-estimate fees?
Not yet. For now, enter your own estimates. Future versions may provide presets by marketplace/category/size tier.

Disclaimer

This tool provides estimates for informational purposes only and does not constitute financial or tax advice. Fees and policies can change; always verify with your Amazon statements.