Aspect Ratio Calculator – Scale, Crop & Presets

Original size or ratio

Width

Height

Pixels, inches, centimeters or plain ratio numbers like 4 and 5 — units don't matter as long as both match.

Presets

New size, same ratio

Width

Height

Type either side; the other one is calculated.

Round to whole numbers (pixels)

Aspect ratio

2 : 3

Portrait

0.6667Width ÷ height

1.5Height ÷ width

2:3Closest common ratio

1080 × 1620New size

Put it in a frame of

Crop to fill

Fit with borders