Ratio Calculator
Simplify ratios and solve for missing values in proportions.
Solve for X in a Proportion (A:B = C:X)
Simplify a Ratio (A:B)
About this Tool
The Ratio Calculator is a versatile tool for working with ratios and proportions. It can simplify a ratio to its lowest terms or solve for a missing value in a proportion (e.g., A:B = C:X). Ratios are used to compare the relative sizes of two or more values.
Common Use Cases
Scaling Recipes
If a recipe for 4 people requires 2 cups of flour, use the ratio calculator to find out how much you need for 6 people.
Map Scaling
Convert distances on a map to real-world distances using the map's scale (e.g., 1 inch = 10 miles).
Image Resizing
Maintain the aspect ratio of an image when resizing. If you have a 1920x1080 (16:9) image and want the new width to be 800px, you can calculate the new height.
Pro Tips
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Proportions
A proportion is an equation stating that two ratios are equal. The calculator solves for 'X' using cross-multiplication.
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Simplifying Ratios
To simplify a ratio, the calculator finds the greatest common divisor (GCD) of the two numbers and divides both by it.
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Units
When using ratios, make sure the units are consistent. For example, when scaling a recipe, don't mix cups and liters unless you convert them first.