Markup Calculator

A markup calculator computes selling price, profit, and markup percentage. Markup is calculated on cost; gross margin is calculated on selling price — they are not the same percentage

The calculator uses the standard published formula for markup. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Markup % = (Selling − Cost) / Cost × 100. Each step in the calculation is shown so you can verify the result manually.