Amazon Seller Tools
Free calculators for Amazon FBA sellers and virtual assistants: BSR to sales, ACoS, PPC bids, FBA fees, profit, and inventory planning. No signup, no limits, 100% private.
Fee & Profit Calculators
FBA Fee Calculator
Calculate all Amazon FBA fees — referral, fulfillment, storage — by category and size tier.
Profit Calculator
Calculate net profit per unit after all Amazon fees, PPC spend, and costs.
ROI Calculator
Calculate return on investment, payback period, and monthly profit projections.
Referral Fee Calculator
Look up referral fee rates for all 30+ Amazon product categories.
Storage Fee Calculator
Estimate monthly and long-term FBA storage costs with aged inventory surcharges.
Seller Fee Breakdown
Visual pie chart and bar chart breakdown of all Amazon seller fees.
Coupon Calculator
Calculate the true cost of Amazon coupons including the $0.60 clip fee.
Product Research
Sales Estimator
Estimate daily and monthly sales volume from BSR rank across 22 Amazon product categories.
BSR Sales Calculator
Estimate category-specific BSR to sales and reverse-calculate target ranks from daily or monthly sales goals.
Product Research Scorecard
Score product viability out of 100 with GO, CAUTION, or STOP verdict.
Competitor Analysis Tool
Compare up to 5 competitors side by side with market gap scoring.
Listing Optimization
Keyword Research Tool
Generate keyword expansions and optimize backend search terms (250 bytes).
Description Generator
Generate optimized product titles, bullet points, and descriptions.
Listing Character Counter
Real-time character and byte counter for all Amazon listing fields.
Listing Template Generator
Generate category-specific listing templates with format guides.
A+ Content Image Guide
All 17 A+ Content module image sizes with drag-and-drop validator.
Advertising & Inventory
ACoS Calculator
Calculate Amazon ACoS, break-even ACoS, ROAS, TACoS, and PPC profitability before you raise bids.
PPC Bid Calculator
Calculate optimal CPC bids with bid strategy comparison table.
Dimensional Weight Calculator
Find FBA size tier and billable weight from package dimensions.
Restock Planner
Plan reorder timing with stockout dates and 90-day inventory projection.