Percentage100.com

Percentage100.com is a free online tool to calculate percentages. Free, mobile-friendly, one-click results and copy and paste.

Turns tricky math into a breeze, giving you lightning-fast answers for anything percentage-related. Type two numbers, hit Enter, and results appear instantly—no signup, no clutter, always free.

Plan discounts, track workout gains, analyze investments, or check exam marks with equal ease. The clean design supports both dot and comma decimals, highlights errors in red, and plays nicely with screen readers.