Price products from cost with markup percent — margin, selling price, and profit united. Cost $20 at 50% markup sells $30 — free, local, no signup.
Prices from cost and a target margin percentage — the tool solves for selling price, profit, and markup. Perfect for retail pricing, wholesale negotiations, and e-commerce listings where you work backwards from a target margin.
Compute gross margin from revenue and costs — know exact profitability. A $30 sale at $20 cost margins 33% — free, local, no signup.
Compute profit and loss from revenue, costs, and expenses with margin percentages. Close the month knowing exact numbers — free, local, no signup.
Compute turnover rate and retention with replacement-cost breakdown. Price a 20% churn problem correctly — free, local, no signup.
Estimate API bills from request volumes and price-per-million — OpenAI and Stripe presets included. Forecast a 1M-request month before committing — local math, free, no signup.
Markup is percent over cost ($20 + 50% = $30); margin is percent of price ($10 profit on $30 = 33%). Mixing them misprices — the tool shows both.
Cost of goods plus overhead share plus profit target, as markup on cost. A 50% markup barely covers 30% overhead plus 10% profit.
Lower per-unit cost at volume changes optimal markup — recompute per tier rather than blanket-discounting.
No — math runs locally in your browser. Figures never leave your device.
Margin Calculator
Prices from cost and a target margin percentage — the tool solves for selling price, profit, and markup. Perfect for retail pricing, wholesale negotiations, and e-commerce listings where you work backwards from a target margin.
Discount Calculator
Calculate savings and final price after a percentage discount. Perfect for shopping, sales, and budget planning. Figures never leave your device — every calculation runs locally in your browser.
Last updated October 2026