Ecommerce Profit Calculator

How to Calculate Ecommerce Profit

Revenue is not profit. It sounds obvious, but most store owners we talk to cannot tell you their actual net margin within 10 percentage points. They look at the Shopify dashboard, see $50k in monthly revenue, and assume things are going well -- only to discover at year-end that expenses ate through most of it.

The correct approach strips costs in layers. First, remove your direct costs: COGS, shipping and fulfillment, and platform fees from Shopify, Stripe, or PayPal. What remains is your gross profit. Then subtract operating expenses: ad spend, agency fees, fixed costs like rent and salaries, and software subscriptions. What is left after all of that is your net profit -- the money that actually stays in your business.

This calculator walks through every layer and gives you gross profit, net profit, margin percentages, per-order profitability, and an annual projection so you can plan with numbers instead of hope.

Gross vs Net Profit

Here is a question that trips up most founders: your gross margin is 60%, so why is there barely any cash left at the end of the month? The answer is the gap between gross and net profit.

Gross profit is your revenue minus direct fulfillment costs -- COGS, shipping, and transaction fees. It tells you how much each sale generates before you pay for everything else. A healthy gross margin falls between 50% and 70% for ecommerce.

But that is only half the picture. Net profit subtracts everything else: marketing spend, fixed overhead like rent and salaries, software subscriptions, and any other costs. Net profit is what actually ends up in your bank account. Many ecommerce brands have impressive gross margins but terrible net margins because ad spend or operational bloat eats the difference.

Tracking both numbers separately lets you diagnose exactly where your money disappears. If your gross margin is strong but net profit is weak, the problem is in your operating expenses -- not your product economics. If gross margin itself is thin, you need to renegotiate supplier costs, optimize shipping, or adjust your pricing strategy.

What Profit Margin Is Good for Ecommerce?

"Am I making enough?" That depends on where you are. For gross margin, 50-70% is the healthy range for most ecommerce businesses. Brands selling high-margin products like skincare or supplements often exceed 70%, while commoditized goods or electronics sit closer to 30-40%. For net profit margin, 10-20% is the target.

Early-stage brands investing heavily in paid acquisition often operate at lower net margins or even breakeven -- and that is fine, as long as customer lifetime value supports the upfront cost. But if you are past the growth-at-all-costs phase and your net margin is still below 5%, your business is fragile. One supplier price increase, one ad cost spike, and you are in the red. Established brands with strong organic traffic and repeat purchase rates should aim for net margins above 15%.

Use the contribution margin calculator alongside this tool to understand per-unit economics, and the ROAS calculator to make sure your ad spend is generating a positive return. Together, they give you a complete profitability picture so you can make decisions with data instead of gut feelings.