Ratio calculator
Simplify a ratio or find a missing proportional value.
Enter a number without grouping separators (decimal: .).
How to use
- Simplify a ratio or find a missing proportional value.
- Enter your values and choose the options. Use the example below to check the result.
- Review the result; copy or download when available. Reset clears this tool.
Before you start
Simplification accepts non-negative whole numbers, not both zero. Missing-value mode solves a:b = c:x with a nonzero a.
1920:1080 = 16:9; 2:3 = 10:15.