About this ratio calculator
Simplify a ratio and scale it to find a corresponding value.
How to use it
Enter the values requested by the calculator. Results update in your browser as you change the inputs. Review the assumptions shown on the calculator before using the result.
Formula
scaled B = B × scaled A ÷ A
Example
Enter the two sides of the ratio and the new value for A.
Frequently asked questions
What does the ratio calculator show?
Simplify a ratio and scale it to find a corresponding value.
Are the results exact?
The result is calculated from the inputs and assumptions shown on this page. For important financial, health, tax, or legal decisions, verify the result with an appropriate professional or authoritative source.