99digest is in early access — tools are free while we grow.

Ratio Calculator

Simplify a ratio to lowest terms, or solve a proportion A:B = C:? for the missing value — instantly, in your browser.

Runs in your browser Private & secure
Read the guide →

Simplify a ratio to lowest terms, or solve a proportion A:B = C:? for the missing value — instantly, in your browser.

Runs in your browser