FREE CALCULATOR
Ratio Calculator
Simplify a ratio and find a missing proportional value.
Simplified ratio2:3
Equivalent fourth value6.67
CALCULATOR GUIDE
About the Ratio Calculator
Compare quantities, simplify a ratio or divide a total into proportional parts.
How to use this calculator
- Enter the values requested by the calculator and check their units.
- Choose assumptions that match the scenario you want to estimate.
- Review the result and change one input at a time to compare scenarios.
- Verify important decisions against the relevant agreement, institution or official guidance.
How the calculation works
Equivalent ratios are made by multiplying or dividing each term by the same nonzero factor.
Example
A 2:3 ratio has five total parts; splitting 25 in that ratio gives 10 and 15.
Things to keep in mind
- Convert quantities to compatible units before comparing them.
- Ratios describe relative amounts and are not automatically percentages.
- The result is an estimate based on the inputs and assumptions provided.
- Check applicable terms and official guidance before making financial, employment or academic decisions.
Frequently asked questions
How do I split a total in a ratio?
Add the ratio parts, divide the total by that sum, then multiply each ratio term by one part.
Are results guaranteed or official?
No. The tool provides an estimate or arithmetic result and may not include every real-world rule, fee or policy.
Can I compare scenarios?
Yes. Change one input at a time to see how it affects the result.