Percentage Calculator
Percentage Calculator: free, instant and private. This is the everyday percentage case: GST on a price, a tip, a discount, a salary hike.
How the Percentage Calculator works
The Percentage Calculator takes Percentage, Of value and returns the answer instantly — no button to hunt for, no page reload. This is the everyday percentage case: GST on a price, a tip, a discount, a salary hike. Enter the percent as a plain number — 18, not 0.18.
Enter your own numbers to replace the example values; the result panel updates as you type. Everything runs in this single page, so nothing you enter leaves your device.
Formula used
result = (percentage ÷ 100) × value
| Symbol | Meaning |
|---|---|
| percentage | the percent figure you type |
| value | the number you take the percent of |
This is the everyday percentage case: GST on a price, a tip, a discount, a salary hike. Enter the percent as a plain number — 18, not 0.18.
Inputs used: Percentage, Of value.
Worked example
Take the default example — percentage of 25, of value of 200:
- Result: 50
Frequently asked questions
- What formula does the Percentage Calculator use?
- It uses result = (percentage ÷ 100) × value, where percentage is the the percent figure you type; value is the the number you take the percent of.
- Is the Percentage Calculator free?
- Yes. There is no signup, no usage limit and no watermark — the calculator runs entirely in your browser.
- How do I read the result?
- This is the everyday percentage case: GST on a price, a tip, a discount, a salary hike. Enter the percent as a plain number — 18, not 0.18.
- Does the Percentage Calculator store or send my data?
- No. Every calculation happens locally in the page, so the numbers you type are never uploaded or logged.
- Does it work on a phone and offline?
- Yes — the page is a single lightweight file that adapts to any screen size. Once it has loaded it keeps working without a network connection.