Enter your values
Results
Enter your values to see the result.
Indicative results. Check the assumptions and formula before using them.
Proportion calculator
Solve a proportion from three known values and find the fourth proportional.
Frequently asked questions
Can I enter negative values?
Yes. Values may be negative or decimal; A must not be zero.
Can I use it to scale a recipe?
Yes, if quantities change in direct proportion and measurement units are consistent.