Visible math
Each calculator shows the formula, the inputs used, and a worked example so the result can be checked.
46 calculators live, quality before count
Business calculators for pricing, profit, fees, and ecommerce decisions.
Answer the money questions behind every product: what to charge, what platforms take, what you keep, and whether ads can work.
Search calculatorsSearch calculators for Stripe fees, Etsy profit, ROASDecision path
Start with price, check fees, then test whether ads can still work.
Set the price
Recommended selling price
$50.00
Product Pricing
Includes cost, labor, fees, and target margin.
Check platform fees
Total Etsy fees
$3.30
Etsy Fee
See what the marketplace and payment processor take.
Test ad headroom
Break-even ROAS
2.01x
Break-Even ROAS
Know the ROAS floor before spend increases.
Portfolio workspace
Save fee profiles, price multiple products, import CSV rows, and export a worksheet.
Built for decisions
Not just the answer. The assumptions behind it.
FeeProofed is designed for sellers and operators who need to decide what to charge, what a platform takes, what margin remains, and whether the next campaign can work.
Read the calculator methodologyDecision workflow
Pages connect pricing, fees, margins, and ad targets so users can move from one money decision to the next.
Reviewed assumptions
Source notes, verification dates, and review triggers make platform-sensitive calculators easier to maintain.
Start with these calculators
Popular tools for common pricing, fee, and profit decisions.
Product Pricing Calculator
Find a selling price that covers real unit costs, labor, shipping you absorb, platform fees, and your target profit margin.
Etsy Fee Calculator
Add up Etsy listing, transaction, payment processing, and optional Offsite Ads fees so you can see what a sale leaves after fees.
Stripe Fee Calculator
See the estimated Stripe fee on a charge, what you receive after fees, or the gross amount to charge to net a target payout.
Break-Even ROAS Calculator
Find the exact ROAS a campaign needs to break even after price, COGS, shipping, and fees, plus the higher target ROAS required to keep a profit buffer.
Etsy Profit Calculator
Layer Etsy fees, materials, labor, packaging, shipping, and ad spend into one profit view for a single Etsy sale.
ROAS Calculator
Measure whether an ad campaign is actually profitable after revenue, ad spend, product cost, shipping, and fees.
Browse by category
Grouped by the decision you are trying to make.
Pricing Calculators
Start here when you need to turn product costs, labor, fees, shipping, and margin targets into a selling price.
Fee Calculators
Use these calculators to estimate what payment processors and marketplaces take before you count revenue as profit.
Etsy Calculators
Estimate Etsy fees and test real listing profit after materials, labor, shipping, packaging, and ads.
Ads Calculators
Connect ad spend to product economics so campaigns are measured against your actual margins, not generic benchmarks.
Handmade Calculators
Handmade sellers need pricing tools that treat labor as a real cost and show whether a product can survive platform fees.
Price your next product in under a minute.
Start with the Product Pricing Calculator, then check fees and ad headroom.