Ratio Calculator
Divide both quantities by their greatest common divisor; scale both sides by the same factor.
Inputs and units
- First quantity: Enter your value in the format and unit shown.
- Second quantity: Enter your value in the format and unit shown.
- New first quantity: Enter your value in the format and unit shown.
Calculation method
Divide both quantities by their greatest common divisor; scale both sides by the same factor.
Worked example
The example values are: First quantity = 12; Second quantity = 18; New first quantity = 24
- Simplified ratio: 2:3
- Matching second quantity: 36
Assumptions and limitations
Check that the inputs and units describe your situation.
Using your result
Select Calculate after changing inputs. Copy result copies the displayed output; Download result saves a text file. Reset returns the form to its example inputs. Calculations run in your browser.
Ratio Calculator FAQs
What method does this calculator use?
Divide both quantities by their greatest common divisor; scale both sides by the same factor.
What should I check before using the result?
Check that the inputs and units describe your situation.