Ratio Calculator
Simplify ratios and solve for missing terms.
Ratio Calculator
Enter your values and calculate
How This Calculator Works
A ratio compares two quantities. Simplifying divides both by their greatest common divisor. If you provide a third term, the calculator solves the proportion for the fourth.
Formula
Simplify by GCD; A:B = C:D → D = B×C/A
Example
12:8 simplifies to 3:2. If 3:2 = 9:D, then D = 6.
Practical Use Cases
- Recipe scaling
- Mixing ratios
- Map scales