# Percentage Calculator Free

> Percentage Calculator Free: a free percentage calculator (what is X% of a number, what percent one number is of another, and increasing or decreasing a number by a %), running entirely in the browser, no sign-up.

Sitemap: https://percentagecalculatorfree.xyz/sitemap.xml

## Tools

- [Percentage Calculator](https://percentagecalculatorfree.xyz/): Calculate what X% of a number is, what percent one number is of another, or increase/decrease a number by a %.
- [How to Calculate a Percentage](https://percentagecalculatorfree.xyz/how-to-calculate-a-percentage/): Step-by-step guide, no calculator needed, with worked examples and common mistakes.
- [Percentage Formula](https://percentagecalculatorfree.xyz/percentage-formula/): Every percentage formula explained: basic, reverse, percentage change.

## About this site

Percentage Calculator Free offers a percentage calculator with three modes (how much is X% of a quantity, what percent a number is of another, and increasing or decreasing a number by a given percentage), plus a step-by-step guide to calculating a percentage by hand and a page with every percentage formula explained. All calculations run locally in the browser: no data is sent to or stored on a server.

Site: https://percentagecalculatorfree.xyz