Ratio Calculator
Our Ratio Calculator makes it easy to work with ratios. Simplify ratios to their lowest terms, find equivalent ratios, and solve proportion problems—all in one tool.
How it works
- 1
Enter the ratio values (A and B) in the input fields.
- 2
Click "Simplify" to reduce the ratio to its simplest form.
- 3
Enter a multiplier to find equivalent ratios.
- 4
See results instantly with automated calculations.
Examples
Simplify 12:18
2:3
Both 12 and 18 are divisible by 6. 12÷6=2, 18÷6=3.
Equivalent ratio of 3:4 × 5
15:20
Multiply both parts of the ratio by 5: 3×5=15, 4×5=20.
Simplify 100:25
4:1
Both 100 and 25 are divisible by 25. 100÷25=4, 25÷25=1.
Frequently asked questions
To simplify a ratio, divide both parts by their greatest common divisor (GCD). Repeat until no common divisor remains.
Equivalent ratios have the same relationship but use different numbers. You create them by multiplying or dividing both parts by the same number.
Yes, convert both ratios to their decimal form by dividing the first number by the second, then compare the decimals.
Yes, our ratio calculator is 100% free to use with no limitations.
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