Margin Calculator Express

Fast, live margin and markup calculations. Enter any two of Cost, Sell Price, or Margin % — the third fills in instantly. No sign-up/no data collection.

Margin Calculator makes pricing math instant.

Enter any two of Cost, Sell Price, or Margin % — the third calculates live as you type, with Profit shown right below. Switch between Margin and Markup mode with one tap, and the calculator instantly reinterprets your numbers using the correct formula for each.

FEATURES • Margin and Markup modes, computed with the correct formula for each • Automatic Profit calculation • Up/down keyboard navigation between fields • History of your recent calculations, tap any entry to reload it • Clean, high-contrast design with full dark mode support