Everyday tools

Calculate a percentage

Pick a calculation, enter two numbers, done. Everything runs in your browser — nothing is uploaded.

1
Choose a calculation
20% of 15030

Common questions

How do I calculate a percentage increase or decrease?
Use the "% change" option and enter the starting value as "From" and the ending value as "To" — the result shows the percentage change, with a minus sign if it decreased.
What does "X is what % of Y" mean?
It answers questions like "12 is what percent of 80?" — enter 12 and 80, and it returns the percentage 12 represents of 80.
Can I use negative numbers?
Yes, though percentage change with a zero starting value is not a defined calculation and will not return a result.