Percentage calculator
Find a percentage of a number, plus totals after adding or subtracting it.
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Ratio calculator
Simplify a ratio of two whole numbers and see each share of the total.
Your result
A little input. A useful result.
Adjust the example inputs, then select Simplify ratio.
About this tool
Reduce two non-negative whole numbers to their simplest ratio using their greatest common divisor. The percentage breakdown shows how much each part contributes to the combined total.
How to use it
- 1
Enter the first and second whole-number quantities.
- 2
Use zero for one part if needed; both parts cannot be zero.
- 3
Simplify the ratio and compare the shares of the total.
Questions, answered
How are ratios simplified?
Both numbers are divided by their greatest common divisor. Dividing 1920 and 1080 by 120 gives the equivalent ratio 16:9.
Can I enter decimals?
This tool accepts whole numbers. Multiply both sides of a decimal ratio by the same power of ten first, such as turning 1.5:2.5 into 15:25.