Free Online Percentage Calculator

Percentage Calculator

Ad Slot 1 (Responsive Display Ad)
Standard Percentage
What is % of ?
Result: 0
Reverse Percentage
is what % of ?
Result: 0%
Percentage Increase/Decrease
From to
Result: 0%
Ad Slot 2 (Responsive Display Ad)

About this Percentage Calculator

This free online percentage calculator handles three of the most common math problems people face daily. Whether you are a student trying to calculate your test grade, a shopper trying to figure out a 20% discount at the mall, or a professional calculating a salary increase, this tool provides instant and accurate results. No need to remember complicated math formulas—just enter your numbers and get the answer.

How to Use the Calculator

Frequently Asked Questions (FAQ)

How do I calculate a discount on a price?

To calculate a discount, use the “Percentage Change” calculator. Enter the original price as the “From” number, and the discounted sale price as the “To” number. The result will show the percentage you are saving.

Can I use decimals in the input boxes?

Yes, this calculator fully supports decimal numbers (e.g., 12.5% or 199.99). Just type them in as you normally would.

Scroll to Top