Tools by nbsumit Logo
Tools by nbsumittools.nbsumit.com

Ratio Calculator

Simplify ratios, scale proportions, and solve for missing values in A:B = C:D equations.

Your tool input is processed locally in your browser and is not sent to our servers.
:
Simplified Ratio
16 : 9
Greatest Common Divisor (GCD): 120

What this tool does

Simplifies mathematical and aspect ratios to their lowest terms and solves proportion equations (A / B = C / D) when any one value is unknown.

How to use this tool

  1. Use the Simplify tab to reduce ratios like 1920:1080 to 16:9.
  2. Use the Solve Proportion tab to find an unknown variable in A:B = C:D.

Proportion Formula

A / B = C / D  ⟹  A × D = B × C

Simplification finds the greatest common divisor (GCD) of both terms and divides each term by that common factor.

Practical Examples

Aspect Ratio Simplification

Simplifying monitor resolution 2560 × 1440.

Input: 2560 : 1440
Output: 16 : 9

Frequently Asked Questions

Related Tools