Percentage calculator
The five most common percentage sums, solved as you type. No formulas.
Everything happens in your browser: your files are never uploaded to a server.
What is % of ?
Price with a discount of %
Amount increased by %
is what % of ?
From to
How to use it
- Find the question you need.
- Change the numbers.
- The result appears instantly on the right.
FAQ
How do I work out a discount?
Price × (1 − discount/100). 25% off 80 leaves 60: you save 20.
How do I find what percent one number is of another?
Divide the part by the total and multiply by 100. 30 out of 120 is 25%.
What is percentage change?
How much something went up or down in percent: (new − old) / old × 100. From 50 to 65 is +30%.
Does +10% then −10% get me back to the start?
No. 100 + 10% = 110, and 110 − 10% = 99. Try it here.
More tools
01Images
Compress imagesShrink JPG, PNG and WebP files without visible quality loss.Open02Images
Convert imagesTurn HEIC, PNG or WebP into JPG (and back) in seconds.Open03Images
Remove backgroundErase a photo's background and download a transparent PNG.Open04Utilities
QR code generatorMake QR codes with your logo and colors.Open05PDF
Merge PDFCombine several PDFs into one and reorder the pages.Open06PDF
Split PDFSplit a PDF or extract only the pages you need.Open