Question 1

What is an aspect ratio?

Accepted Answer

An aspect ratio is the proportional relationship between width and height. For example, 16:9 means for every 16 units of width, there are 9 units of height.

Question 2

What is the most common video aspect ratio?

Accepted Answer

16:9 is the standard for HD video, YouTube, and most modern displays. 9:16 is used for TikTok, Instagram Reels, and YouTube Shorts.

Question 3

What aspect ratio should I use for Instagram?

Accepted Answer

Instagram supports 1:1 (square feed), 4:5 (portrait feed, recommended), 3:4 (new photo format), and 9:16 (Reels/Stories). Portrait 4:5 at 1080×1350 gets the most screen real estate in the feed.

Question 4

How do I resize without distortion?

Accepted Answer

Enter original width and height, then provide either a new width or new height. The calculator computes the other dimension to maintain the ratio.

Question 5

What aspect ratio is 1920x1080?

Accepted Answer

1920×1080 is 16:9 — standard Full HD resolution used for YouTube videos and most monitors.

Question 6

What size should TikTok videos be?

Accepted Answer

TikTok uses 9:16 aspect ratio at 1080×1920 pixels. This is the same as Instagram Reels and YouTube Shorts.

Aspect Ratio Calculator

Common Aspect Ratios

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