Percentage Calculator
Calculate percentages, increases, and decreases
What is Percentage Calculator?
Percentage Calculator performs common percentage operations: finding a percentage of a number, calculating what percent one number is of another, and computing percentage increases or decreases.
When to use this tool
- Calculating discounts during shopping
- Figuring out what percent of your budget you've spent
- Computing grade or test score percentages
- Analyzing growth rates in data
- Determining tip amounts or markups
How it works
Applies standard percentage formulas: X% of Y = (X/100) * Y, what percent: (part/whole) * 100, and percent change: ((new-old)/old) * 100. Results are computed instantly with no server calls.
Examples
About Percentage Calculator
Calculate percentages, increases, and decreases It runs entirely in your browser — no files are uploaded to any server, ensuring complete privacy and instant results.
- •Test and debug regular expressions
- •Parse cron expressions in plain English
- •Format SQL, XML, and YAML
- •Convert between number bases instantly
Last updated: 2025-01-15
FAQ
Calculate percentages, increases, and decreases
Yes, completely free. No signup required.
Yes. Runs entirely in your browser, no files uploaded.
Yes, works on any device with a modern browser.
No, everything runs in your browser.