Convert

Aspect Ratio Calculator

Calculate and scale image/screen aspect ratios

Width

Height

Ratio

16:9

Decimal

1.7778

Megapixels

2.07 MP

Scale to new size

→ 1422 × 800

About Aspect Ratio Calculator

The Aspect Ratio Calculator helps you calculate and scale image or screen dimensions while maintaining the correct aspect ratio. It is free, runs in your browser, and stores no data. Perfect for designers, videographers, and developers working with responsive layouts.

Frequently Asked Questions

How do I calculate an aspect ratio?

Enter your width and height values and the tool will calculate the aspect ratio. You can also lock the ratio and change one dimension to see the other dimension scale proportionally, preserving the original proportions.

Is my data stored when using the calculator?

No, all calculations happen in your browser. No dimensions or ratios are sent to any server. The tool simply performs the math locally on your device with complete privacy.

What are common aspect ratios used for?

Common aspect ratios include 16:9 for widescreen video, 4:3 for traditional screens, 1:1 for social media squares, and 9:16 for vertical mobile video. Knowing the correct ratio ensures your images and videos display properly without stretching or cropping.