Calculators

Ratio Calculator

Simplify a ratio, split a total fairly, or find an equivalent proportion.

Processed locally

Nonnegative terms up to 1000000000, with at most 6 decimal places. Both terms cannot be zero.

Ratio Calculator
Total to split (optional)
New A (optional)
Result

Your answer will appear here.

Help and method

Both terms are scaled to integers and divided by their greatest common divisor. The optional total is split as A/(A+B) and B/(A+B). Enter a new A to find B with the same proportion. Shares retain the unit of your total; they are not rounded to whole objects.

Methods and reliability

Worked example

An example you can try or adapt to your own values.

First term (A)
1.5
Second term (B)
2.5
Total to split (optional)
80

Result

Simplified ratio: 3 : 5 A as a fraction of the total: 3/8 Share A: 30 Share B: 50

Try these inputs