Aspect ratio calculator
Aspect Ratio Calculator
Enter width and height to find the exact ratio, or use a target ratio to calculate a missing dimension.
Find the ratio
Use pixels, inches or any consistent unit.Aspect ratio
16:9
Ratio preview
Visual guide16:9
The frame updates as you change the dimensions.
Calculate a missing dimension
Choose a target ratio and enter one known dimension. The calculator keeps the proportions exact.
Matching dimensions
1280 × 720
Common sizes
| Width | Height | Ratio |
|---|
FAQ
What is aspect ratio?
Aspect ratio describes the proportional relationship between width and height. A 16:9 image is 16 units wide for every 9 units tall.
How do I calculate a 16:9 height?
Multiply the width by 9 and divide by 16. A 1920-pixel width gives a 1080-pixel height.