(05)Digital · Tools
Aspect Ratio Calculator
Find the aspect ratio of any size, then calculate the matching height for a new width — or the width for a new height.
- Free forever
- No sign-up
- Runs in your browser
Your size
px
px
Common ratios
Resize, keep the ratio
px
Height
px
Width
Aspect ratio
16:9
Decimal1.778
Orientation—
Megapixels2.07
1920 × 1080
aspect-ratio: 16 / 9;Good to know
How it works
The ratio is the width and height divided by their greatest common divisor, so 1920 × 1080 becomes 16:9. Near-standard sizes are matched to the closest common ratio too.
Everything happens on your device. Nothing you enter is uploaded, stored or tracked.