Ratio Calculator
Simplify any ratio to its lowest terms, convert it to a decimal, and scale it up or down. Useful for recipes, aspect ratios, maps, mixing solutions, and solving proportions.
Ratio Calculator
math calculator
How It Works
Formula
Simplified Ratio = A÷GCD : B÷GCD
Examples
Ratio 16 : 9
A common widescreen aspect ratio, already in simplest form.
Frequently Asked Questions
How do I simplify a ratio?
Divide both numbers by their greatest common divisor (GCD). For example, 16:9 is already simplified, but 8:4 simplifies to 2:1.
How do I scale a ratio?
To keep a ratio equivalent while changing one value, multiply both sides by the same factor. The calculator does this automatically with the "Scale to A" field.
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