Ratio Calculator

Simplify any ratio between two numbers down to its smallest whole-number form.

Calculate

Enter your values below.

Result

Simplified ratio
0

Formula used

Both values are divided by their greatest common divisor (GCD) to reach the simplest equivalent ratio.

Example: 8 : 12 simplifies to 2 : 3.

How to use this calculator

  1. Enter First value, Second value.
  2. Press Calculate to see your result instantly.

Frequently asked questions

How do you simplify a ratio?

Divide both numbers by their greatest common divisor until no common factor remains.

Can ratios include decimals?

This calculator works with whole numbers; convert decimals to whole numbers first (e.g. by multiplying) for the cleanest result.

What does a simplified ratio mean?

It expresses the same proportional relationship using the smallest possible whole numbers.

Can I simplify a ratio with a negative number?

Ratios are typically expressed as positive values — use the absolute value of each number.