Markup Calculator
Enter cost and markup, get the selling price, with the resulting margin always displayed beside it so the two never get mixed up again. Fees and real selling costs optional.
Decimals allowed (weight, hours)
Whole numbers: this counts orders
Add fees and real selling costs
Payment or marketplace percentage
Charged once per order, however many units it contains
Per-order cost waterfall (entered costs only)
Decision numbers
"Contribution profit" here means revenue minus product cost minus the costs you entered above, and nothing else. It is not net profit: returns, packaging, tax, wages, rent and overhead are not included unless you typed them in.
Show the math
Internal math keeps full precision; only displayed amounts are rounded, half-up, at the currency's decimal places.
Markup is what you do, margin is what you report
Markup answers "what do I multiply cost by"; margin answers "what share of the price is profit". Both describe the same transaction, and confusing them is expensive in a predictable direction: applying a 40% markup when the business plan assumed a 40% margin leaves you 11 points of margin short on every sale. This calculator keeps both visible at all times, converts in either direction, and, with the fees section open, shows what the marked-up price actually contributes per order after payment and platform costs.
Markup FAQ
How do I calculate selling price from markup?
Price = cost x (1 + markup / 100). A $60 product with a 50% markup sells for $90. The calculator above does this live and immediately shows the margin that markup produces (33.33% in that example), because the number you quote to others is usually margin while the number you apply to cost is markup.
What markup gives me a specific margin?
markup = margin / (1 - margin). A 40% margin needs a 66.67% markup; a 50% margin needs 100%. If you want to start from the margin instead, switch to the "Cost + target" mode above and the calculator solves the price directly, including a version that accounts for fees.
Is keystone pricing (100% markup) still a rule of thumb?
In parts of retail, yes: doubling the wholesale cost, which is exactly a 50% gross margin. Whether it works depends entirely on the selling costs beneath it: with marketplace percentage fees, payment fees and shipping, a keystone price can net far less than half. Open the fees section above to see what a 100% markup really leaves per order in your setup.
Can markup be over 100%? Can it be negative?
Both. Markup has no upper bound: software, jewelry and pharmaceuticals routinely run several hundred percent. Negative markup means selling below cost, which shows here as a loss status with the negative margin computed honestly. The only impossible number in this pair is a margin of 100% or more.
More free tools: Profit Margin Calculator · Selling Price Calculator · Gross Profit Calculator · Marketplace Fees