Percentage Calculator
Calculate percentages, increases, and decreases.
- 100% free
- No sign-up
- Instant results
- Privacy-friendly
What is % of ? —
is what percent of ? —
Change from to ? —
About the Percentage Calculator
Calculate percentages, increases, and decreases. The Percentage Calculator on The 360 Tools is fast, accurate and completely free — no account, no downloads and no usage limits.
Like every tool in our calculators collection, the Percentage Calculator runs directly in your browser. Your input is processed locally whenever possible, so results are instant and your data stays private.
How it works
- 1 Enter your values in the input fields
- 2 Results update instantly with a full breakdown
- 3 Copy or adjust the numbers as many times as you need
Frequently asked questions
How do I calculate a percentage increase?
Subtract the original value from the new value, divide the result by the original value, then multiply by 100. The calculator does this automatically for you.
Is the Percentage Calculator free to use?
Yes. The Percentage Calculator is completely free with no sign-up, no hidden charges and no usage limits. All tools on The 360 Tools are free forever.
Is my data safe when using the Percentage Calculator?
Yes. Your input is processed locally in your browser whenever possible and is never stored on our servers or shared with third parties.
Does the Percentage Calculator work on mobile?
Yes. The Percentage Calculator is built mobile-first and works on any modern phone, tablet or desktop browser without installing anything.
Embed this tool on your website
Add the free Percentage Calculator to your own site or blog — copy the snippet below and paste it into your HTML. It's free for any website; we only ask that you keep the credit link.
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