Percentage Calculator

What is 15% of 80? 20 is what % of 100? 50 + 20%? Three modes. All client-side.

Mode

Percentage (X)

Value (Y)

Try it with this example

Select "What is X% of Y?", enter 15 and 80. Result: 12. Try "X is what % of Y" with 20 and 100 for 20%.

What is 15% of 80? Or 20 is what percent of 100? Calculate percentages in four modes: X% of Y, X is what % of Y, Y + X%, Y - X%. All client-side.