Aspect Ratio Calculator

Enter width and height to simplify the ratio, or lock an aspect ratio and calculate a matching width or height.

Width

Height

16:9Simplified ratio

1.7778Decimal ratio

2,073,600Total pixels

LandscapeOrientation

Resize with the same aspect ratio

Ratio width

Ratio height

New width

1280 × 720Matching dimensions

How to use this Aspect Ratio Calculator

Calculate aspect ratio, missing dimensions, and resized dimensions. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.