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16:9 Aspect Ratio Calculator

Width to height, locked at 16:9.

16:9 is the widescreen standard for video and displays. The width is 16 units for every 9 units of height, about 1.78 times wider than tall. To hold the ratio, multiply the width by 9 and divide by 16 for the height, or multiply the height by 16 and divide by 9 for the width. Everything below runs in your browser.

The 16:9 resolution ladder

Name Width Height
720p (HD) 1,280 720
1080p (Full HD) 1,920 1,080
1440p (QHD) 2,560 1,440
4K (UHD) 3,840 2,160
8K 7,680 4,320

Every height in that table is computed as width x 9 / 16, so each row is exactly 16:9. That is why video scales cleanly from 720p all the way to 8K.

Height 1080 px

All aspect ratios

Questions people ask

What does 16:9 mean?

It means the width is 16 units for every 9 units of height. Divide 16 by 9 and you get about 1.78, so a 16:9 frame is roughly 1.78 times wider than it is tall. It is the standard shape for televisions, monitors, and online video.

How do I find the 16:9 height for a width?

Multiply the width by 9 and divide by 16. A width of 1920 gives 1920 x 9 / 16 = 1080. A width of 3840 gives 3840 x 9 / 16 = 2160. To go the other way, multiply the height by 16 and divide by 9.

Is 1920x1080 the same ratio as 3840x2160?

Yes. Both reduce to 16:9, so 1080p and 4K UHD are the same shape at different pixel counts. That is why 1080p video fills a 4K screen with no black bars, it just scales up.