Ratio Calculator

Solve Proportion (A:B = C:D)

Leave one field empty to solve for the unknown value.

:
=
:
Missing Value
8

Simplify Ratio

: = 3 : 4

Scale Ratio

Scaled Ratio: 10 : 15

Ratio to Fraction/Decimal

:
3/4
As Fraction (A/B)
0.75
As Decimal
75%
As Percentage
3 of 7
Parts of Whole