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Everyday calculators

Aspect ratio calculator — ratio from size and size from ratio

Find the exact aspect ratio of any width and height, the nearest standard ratio, and the matching height or crop size for a target ratio.

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How to use

1
Enter width and height.
2
Pick a target ratio and new width.
3
Read the ratio and new height.

When to use it

Video sizes

Height for 16:9 at a width.

Monitors

Ratio of 3440×1440.

Design

Sizes for 4:5.

Good to know

1920×1080 is 16:9.
Works for px, cm or inches.
Use our crop tool to crop photos.

FAQ

2560×1080?

64:27, called 21:9.

Instagram?

4:5 feed, 1:1 square, 9:16 stories.

Saved?

No.

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