Percentage Calculator
To calculate a percentage, multiply the number by the percent and divide by 100: 15% of 80 is 80 × 15 ÷ 100 = 12. ClickZM also works out what percent one number is of another, percentage increase or decrease, and adding or removing a percentage.
- Free
- No signup
- Runs in your browser
How to use Percentage Calculator
- 1Type or paste your input into the Percentage Calculator.
- 2Choose any options you need.
- 3See the result update instantly.
- 4Copy the result or download it.
Percentage Calculator: questions people ask
How do I calculate percentage change?
(new − old) ÷ old × 100. Going from 50 to 65 is (65 − 50) ÷ 50 × 100 = 30% increase.
What percent is 30 of 120?
30 ÷ 120 × 100 = 25%.
Is my data uploaded when I use the Percentage Calculator?
No. The Percentage Calculator runs entirely in your web browser, so your text and numbers stay on your device and work even on a slow connection.
Does the Percentage Calculator work on iPhone, Android and Mac?
Yes. The Percentage Calculator runs in any modern browser (Safari, Chrome, Edge or Firefox) on iPhone, iPad, Android phones, Mac, Windows and Chromebook. There is no app to install.
Is the Percentage Calculator free?
Yes. The Percentage Calculator is free with no signup, no watermark and no daily limit.
Which percentage questions does this answer?
It answers five separately: what is X% of Y, X is what percent of Y, the percent change from A to B, a number after adding a percent, and a number after subtracting a percent. Percent change uses (new − old) / old.