Aspect Ratio Crop

READY-TO-USE IMAGE TOOL

TikTok video size crop tool.

TikTok video size uses a 1080 × 1920 pixel frame (9:16). The calculator and local image crop below are already set to that shape, so you can enter dimensions or choose an image immediately.

Common size as of 2026-09; platform display and upload rules can change. Check the platform before publishing. Your image stays in this browser.

01 / CALCULATE

Find the ratio

Enter your pixel dimensions. Whole-number dimensions reduce to an exact ratio.

REDUCED RATIO9:16

Match a ratio

Set one dimension to find the other without stretching.

Matching height: 1920 px
Matching width: enter a height

Calculated values may have fractional pixels. Round to whole pixels when exporting a raster image.

02 / CROP LOCALLY

Frame your image

Choose an image or drop it below. Drag the frame to position your crop; arrow keys move it too.

or drop a file here

No upload. The image never leaves your device; nothing is saved by this site.

03 / WORKED EXAMPLE

Put this frame to work

A 1080 × 1920 vertical cover uses the same 9:16 shape as a typical full-screen clip. A 1080 × 1080 square lacks 840 pixels of vertical canvas; resizing it alone will not fill the frame.

Resizing preserves a source image's shape; cropping removes edges to fit a different one. Download the crop as PNG or JPEG above.