Aspect Ratio Calculator

STEP BY STEP

How to use aspect ratio calculator

1. Enter the original width and height.
2. Choose a new width or height.
3. Read the proportional other dimension and simplified ratio.

WHEN IT HELPS

Common uses

• Resize an image proportionally for a website.
• Plan video dimensions at the same ratio.

IN PRACTICE

Example

For a 1920 × 1080 image, a new width of 1280 gives a height of 720.

GOOD TO KNOW

Does it crop images?

No. It calculates proportional dimensions only.

Results are rounded to whole pixels. This calculator does not crop or modify an image file.