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Free Ecommerce Profit
Margin Calculator

Calculate your exact profit margin including cost of goods, shipping, platform fees and VAT. Updates live as you type. 100% free no email required, ever.

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What this profit margin calculator covers

See true per-unit profit after platform fees, shipping, packaging and optional UK VAT not just selling price minus COGS. Model Shopify, Amazon, Etsy, eBay or WooCommerce/Stripe fee structures.

How to use it

Enter selling price and cost of goods, add shipping and packaging if you know them, pick your platform, and toggle VAT if your listed price includes 20% UK VAT. Results update live with margin, markup and a simple health signal.

When merchants need it

Before a price change, promo, or new channel launch. Thin margins hide inside “healthy” sticker prices once referral fees and fulfilment land this calculator surfaces that early.

Pricing tips

If margin drops below ~10% after fees, revisit COGS, shipping quotes or the channel mix. Bundle shipping into price carefully — customers notice free shipping more than a slightly higher unit price.

Margin benchmarks by channel

Shopify DTC brands often target 30–45% gross margin before ads. Amazon FBA sellers frequently land at 15–25% after referral and fulfilment fees. Etsy and eBay sit in between depending on category — use the platform preset here, then adjust if your negotiated rates differ.

Worked example: £34.99 selling price, £12.50 COGS, £3.50 shipping, Shopify fees → roughly £15 net profit (~43% margin). Toggle VAT if your listed price is VAT-inclusive.

Frequently Asked Questions

You can model Shopify, Amazon, Etsy, eBay and WooCommerce/Stripe fees, plus shipping, packaging and optional UK VAT.
When VAT is enabled we treat the selling price as VAT-inclusive at the standard 20% rate and pull VAT out before profit — the usual ecommerce listing pattern.
Healthy DTC margins often sit around 25–40% after fees, but categories vary. Use the health bar as a quick signal, not a hard rule.
No. Calculations run in your browser. We only store the email you optionally submit for lead unlock.
Yes. Select Shopify (online store) to apply the standard 2.2% + 20p UK Basic rate, then add shipping, packaging and COGS for a per-unit margin that matches what actually lands in your account.
Many DTC brands target 25–40% gross margin after platform and payment fees. Apparel and beauty often run thinner once returns are factored in — use this calculator before changing price or running a discount.

Other free tools you might find useful

ROAS and Ad Profit Calculator
See ROAS, MER and ad profit
Return rate calculator
See how returns eat margin
Customer lifetime value
Estimate lifetime customer value

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