Image Resize Calculator
Calculate new image dimensions by percentage or by a new width or height, with an optional aspect-ratio lock.
New dimensions
960 x 540 px
Aspect ratio: 16:9
Megapixels: 0.52
How to use this calculator
1. Enter the original dimensions. 2. Choose percentage or a new width. 3. Keep the aspect ratio locked unless you deliberately want to stretch the image.
Formula
New height = New width x (Original height / Original width) when the ratio is locked. Percentage resize multiplies both dimensions by the percentage.
Frequently asked questions
Should I lock the aspect ratio?
Yes, unless you deliberately want to stretch the image. Locking it keeps circles circular and faces undistorted.