Image Aspect Ratio Calculator

Live preview updates automatically when you change ratio or dimensions.

Preview image URL (paste to test)

Default: Groot Solutions sample image

Width (px)

Height (px)

Ratio presets

Ratio (W:H)

Given

Tip: the preview uses a reliable aspect-ratio + padding-top fallback and object-fit:cover so you can see how the image crops to the selected ratio.

Live preview (resizes to selected ratio)

Simplified ratio

—

Dimensions

Width: — px
Height: — px

Notes

• Preview uses an aspect-ratio fallback so it will resize reliably.
• Results rounded to nearest integer. For retina or high-DPI, multiply by 2× or 3× as needed.