Free tool • creator utility

Aspect Ratio Calculator

Enter image or video dimensions, simplify the ratio, and instantly calculate matching sizes for common creator formats.

Ratio settings

ProcessingInstant
Useful forImages + video
PrivacyNo upload needed
×
1280 × 720px keeps a 16:9 ratio.
Simplified aspect ratio
16:9
1920 × 1080 simplifies to 16:9.
16:9
OrientationLandscape
Decimal1.778
Matching size1280 × 720
Common creator sizes

Know the shape before you export.

Ratios help you resize without guessing or stretching content.

16:9Common for widescreen video and YouTube-style landscape content.
9:16Common for vertical video, Shorts, Reels, and TikTok-style content.
1:1Square posts, thumbnails, product cards, and profile-style graphics.
4:5Tall portrait content that uses more vertical screen space.
Understand the shape

Calculate a ratio before you resize.

Aspect ratio describes the relationship between width and height. It helps you resize images or video without stretching the content.

16:9

Common for widescreen video, presentations, and landscape creator content.

9:16

Common for vertical video such as Shorts, Reels, and TikTok-style content.

1:1 and 4:5

Useful for square and portrait graphics, social posts, thumbnails, and product visuals.

Use matching dimensions

Enter a width and height to see the simplified ratio. Then enter a new width to calculate the matching height that preserves the same proportions.