Vertical video size calculator

TikTok Aspect Ratio Helper

TikTok videos are usually built around a vertical 9:16 canvas. Use the calculator to convert a target width into the correct export height.

9:16

Live preview follows the selected ratio.

Calculator

Calculate The Missing Dimension

Choose a ratio, enter width or height, and the calculator fills the matching dimension while keeping the image or video proportional.

Simplified ratio 9:16
Decimal 0.5625
Current size 1080 x 1920

Common TikTok Aspect Ratio Sizes

Use these sizes as starting points. Exact platform requirements can change, so treat the calculator as the proportional reference and check the final upload screen before publishing.

Use case Pixel size Ratio
Standard TikTok 1080 x 1920 9:16
720p vertical draft 720 x 1280 9:16
Square crop 1080 x 1080 1:1
Wide repurpose 1920 x 1080 16:9

Generated Size Table

The table below updates when you choose a new ratio. It is useful for planning responsive images, thumbnails, and video exports.

Width Matching height Size

Practical Tips

Keep key subjects centered.

Avoid tiny text near the bottom UI area.

Export at 1080 x 1920 for a clean common master file.

Visual Ratio Reference

This reference chart shows how common frames compare. Use it when deciding whether a creative should be wide, square, portrait, or ultrawide.

Comparison chart for common aspect ratios including 16:9, 9:16, 1:1, 4:5, and 21:9