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4:3 aspect ratio calculator

4:3 means 4 units wide for every 3 tall, about 1.33:1. It was the shape of standard-definition television and early computer screens, and it is still how most phone cameras take photos. Enter a width or height to get the matching 4:3 size.

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Size and ratio

Aspect ratio
4:3
As a number
1.333:1
Common use
SD television, iPad

Resize to the same ratio

Most video codecs need even widths and heights.

New height
960
New size
1280 × 960
Common widths at this ratio
640 ×480
1280 ×960
1920 ×1440
2560 ×1920
3840 ×2880

Reference

Common 4:3 resolutions

Common 4:3 resolutions
NameSize in pixelsTypical use
VGA640 × 480Standard-definition video, square pixels
SVGA800 × 600Old monitors
XGA1024 × 768Projectors, first iPads
4:3 in HD1440 × 10804:3 picture inside a 1080p frame
UXGA1600 × 1200Monitors and stills
QXGA2048 × 1536Retina iPads
12 MP photo4032 × 3024Phone camera photos
NTSC (720 × 480) and PAL (720 × 576) standard-definition video use non-square pixels and display as 4:3.

FAQ

Frequently asked questions

Something else, or a file that will not convert? Write to conform@niamori.ai.

What is 4:3 in pixels?

Any size whose width is a third larger than its height: 640 × 480, 800 × 600, 1024 × 768, 1440 × 1080 and 1600 × 1200. The height is the width × 3 ÷ 4.

Why is 720 × 480 called 4:3?

DV and DVD video store 720 × 480 pixels (PAL 720 × 576) with pixels narrower than they are tall, so the picture displays as 4:3. Editing software handles this with a pixel aspect ratio setting; for the web, export it as 640 × 480 or 720 × 540 with square pixels.

How do I put 4:3 footage on a 16:9 timeline?

Fit it to the frame height: a 1440 × 1080 picture inside 1920 × 1080 leaves 240-pixel bars on each side (pillarboxing). Or fill the width and crop a quarter of the height. Final Cut Pro calls these Fit and Fill under Spatial Conform; DaVinci Resolve has the same choice in its input scaling setting.

What is the difference between 4:3 and 3:2?

3:2 (1.5:1) sits between 4:3 and 16:9. It is the shape of 35 mm film photos and most DSLR and mirrorless stills, such as 6000 × 4000.

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