Ecommerce Profit Calculator
Model profit per order, margin, break-even ROAS, maximum CPA, target pricing and results at different order volumes.
Open the full calculator →Choose the right number before you make the next move.
Use focused calculators for profit, margin, pricing, ROAS and CPA, then read the supporting guides when you need the formula and assumptions explained.
Free to useNo signupWorks on mobileCalculations stay in your browser
Ecommerce calculators
Start with the full calculator or jump straight to the decision you are making.
Product Pricing Calculator
Calculate the selling price needed to cover product costs, fees, returns, advertising and your chosen target margin.
Calculate a target price →Break-Even ROAS Calculator
Find the ROAS floor implied by your order economics instead of relying on a generic 2×, 3× or 4× benchmark.
Calculate break-even ROAS →Maximum CPA Calculator
See the maximum acquisition cost an order can absorb at break-even and the lower CPA needed to preserve profit.
Calculate maximum CPA →Black Friday Discount Profit Calculator
See your profit per order at a BFCM discount, the break-even discount and the extra orders a sale needs. Includes VAT/GST.
Plan your Black Friday discount →TikTok Shop Fee Calculator
Official 2026 US referral fee by category (6%, 5% or 3% above $10K), creator commission, refund admin fee and profit.
Calculate TikTok Shop fees →Walmart Marketplace Fee Calculator
Official 2026 referral fee for every contract category, tiered rates and an optional WFS fulfillment fee estimate.
Calculate Walmart fees →Mercari Fee Calculator
Official 2026 US Mercari fees: 10% on item plus buyer-paid shipping, Instant Pay, and free vs buyer-paid shipping.
Calculate Mercari fees →eBay Fee Calculator
Official 2026 US final value fees by category, per-order, insertion, international and performance fees, plus profit.
Calculate eBay fees →Square Fee Calculator
Official 2026 US rates on Square Free, Plus and Premium for in-person, online, keyed, Afterpay and ACH payments, with a monthly plan comparison.
Calculate Square fees →Poshmark Fee Calculator
Official 2026 Poshmark fees for the US and Canada: flat fee under the threshold or 20%, with earnings and profit.
Calculate Poshmark fees →Amazon FBA Fee & Profit Calculator
Official 2026 US FBA fulfillment fees (non-peak and holiday peak), size tier, referral fee, storage, net profit, ROI and break-even price.
Calculate Amazon FBA fees →Etsy Fee Calculator
Every Etsy fee on a sale for US, UK, EU and Australian shops, and what you keep after costs.
Calculate Etsy fees →Stripe vs PayPal Fee Calculator
Compare fee per order, monthly cost and effective rate using published standard rates.
Compare Stripe and PayPal →Shopify vs Etsy Fee Calculator
Compare monthly profit on Shopify and Etsy and find the order volume where Shopify's plan fee pays off.
Compare Shopify and Etsy →Shopify Fee Calculator
Your Shopify plan, card processing and third-party fees per order, per month and as a share of revenue.
Calculate Shopify fees →PayPal Fee Calculator
See the PayPal fee and what you receive for US, UK, German and Australian accounts, including international fees.
Calculate PayPal fees →Gumroad vs Payhip vs Etsy Fees
Compare what you keep selling digital products on each platform at your price and volume.
Compare digital product fees →Markup vs Margin Calculator
Convert markup to margin, or find the price for a target margin.
Convert markup and margin →Profit Margin Calculator
Calculate modeled profit, margin, markup, contribution before ads, break-even price and a target-margin price.
Calculate profit margin →Plain-English guides
Understand what the result means, what the formula includes and where a simplified model can fall short.
What Is a Good ROAS for Ecommerce?
Learn why the same ROAS can be profitable for one store and unprofitable for another.
Read the ROAS guide →How to Calculate Ecommerce Profit
Work through product cost, shipping, fees and advertising with a complete order-level example.
Read the profit guide →What Is a Good Ecommerce Profit Margin?
Separate gross, contribution and net margin before comparing percentages or setting targets.
Read the margin guide →Which calculator should I use?
| Your question | Best starting point | Main output |
|---|---|---|
| How much do I keep from each sale? | Ecommerce Profit Calculator | Profit per order and margin |
| What selling price protects my target margin? | Product Pricing Calculator | Required selling price |
| What ROAS is my break-even floor? | Break-Even ROAS Calculator | Break-even and target ROAS |
| How much can I spend to acquire one order? | Maximum CPA Calculator | Break-even and target CPA |
| How deep can my Black Friday discount go? | Black Friday Discount Profit Calculator | Break-even discount and required uplift |
| How much does TikTok Shop take? | TikTok Shop Fee Calculator | Referral fee, creator commission, profit |
| What will Walmart Marketplace charge me? | Walmart Marketplace Fee Calculator | Referral + WFS fees and profit |
| How much does Mercari take? | Mercari Fee Calculator | Mercari fee and earnings |
| How much does eBay take? | eBay Fee Calculator | Final value fee and profit |
| Which Square plan is cheapest for me? | Square Fee Calculator | Fee per payment and per month |
| How much does Poshmark take? | Poshmark Fee Calculator | Poshmark fee and earnings |
| What will Amazon FBA charge me? | Amazon FBA Fee Calculator | FBA + referral fees, profit, ROI |
| How much does Etsy take? | Etsy Fee Calculator | Etsy fees and profit per sale |
| Is Stripe or PayPal cheaper? | Stripe vs PayPal Fee Calculator | Fees per order and per month |
| Should I sell on Shopify or Etsy? | Shopify vs Etsy Fee Calculator | Monthly profit on each platform |
| What does Shopify cost me? | Shopify Fee Calculator | Plan + payment fees, effective rate |
| How much will PayPal take? | PayPal Fee Calculator | Fee, net received, amount to ask |
| Where should I sell digital products? | Gumroad vs Payhip vs Etsy | What you keep per month |
| What margin does my markup give? | Markup vs Margin Calculator | Markup, margin, price |
| What is my after-cost margin? | Profit Margin Calculator | Profit margin and markup |
Planning estimate: Keeplytics uses only the values you enter. Taxes, fixed overhead, discounts, chargebacks, changing platform fees, attribution differences and other costs may materially change actual business profit.