Know the profitbefore you sell

Enter the costs of a store, marketplace, or online sale and see what remains.

No sign-up · calculated in your browser

Start with one product

Try your numbers, then carry them into a full cost breakdown.

Choose the decision

Profit margin Separate selling costs, price for a target profit, and compare pricing scenarios. Break-even Turn fixed costs and a monthly profit goal into sales and daily unit targets. Mercari profit Model Mercari Japan fees and shipping, including discounts and no-loss pricing.