Ratio Calculator
Simplify and compare ratios.
About this tool
This ratio calculator simplifies two values into their lowest whole-number ratio. Ratios are commonly used to compare quantities, mix ingredients, scale drawings or explain how a total is shared.
How to use this calculator
- Enter the first value and the second value.
- Use positive whole numbers for a straightforward simplified ratio.
- Select Calculate to see the reduced ratio.
Formula
Worked example
For 12:18, the greatest common divisor is 6. Divide both values by 6 to get 2:3.
Frequently asked questions
What does a ratio of 2:3 mean?
It means the first quantity has 2 parts for every 3 parts of the second quantity. The actual quantities could be 2 and 3, 10 and 15, or another equivalent pair.
How do I simplify a ratio?
Find the greatest common divisor of both terms and divide each term by it. For example, 16:24 simplifies to 2:3.
Can ratios be written with decimals?
This simple calculator is best used with whole-number inputs. Convert decimal quantities to a suitable whole-number ratio before simplifying.
Does a ratio show a percentage?
Not directly. A ratio compares quantities. To express one part as a percentage of a total, divide that part by the total and multiply by 100.
SolveKit provides general calculations for information and planning. Results depend on the values and assumptions entered. For financial, investment, payroll or tax decisions, confirm the applicable product terms and current rules with an authoritative source or qualified professional.