Margin and markup are not the same number. Enter your unit cost and selling price to see gross profit, margin % and markup % side by side.
Margin is profit ÷ price. Markup is profit ÷ cost — the same profit, different denominator.
Runs entirely in your browser — nothing you enter is uploaded or stored.
This profit margin calculator turns unit cost and selling price into gross profit, profit margin % and markup % at once. Founders constantly confuse margin and markup — margin is profit divided by price, markup is the same profit divided by cost — and pricing on the wrong one quietly erodes earnings. Use it to sanity-check pricing, set discounts that still clear margin targets, and model unit economics.