About CalcPct
CalcPct provides free, practical percentage tools and clear explanations for everyday calculations.
Our purpose
Percentage math should be easy to use and easy to verify. Rather than presenting a single number without context, CalcPct shows the relevant formula, worked examples and common limitations.
Who uses these tools?
Shoppers comparing discounts, students reviewing grade ratios, small-business owners checking margins, and anyone interpreting changes in numbers can use these calculators without an account or payment.
How we support the website
The tools are free to use. Advertising may support site maintenance and development. Advertisements do not alter the formulas or calculated results.
Editorial responsibility
Created by James Gore. Our aim is to keep the content accurate, understandable and useful. Results are educational estimates rather than professional financial, legal or tax advice.