Aspect Ratio and Image Size

These tools work out dimensions. Find the matching 16:9 width or height, convert an image to another ratio, get a screen ratio from its resolution, resize a picture in pixels and read common backdrop sizes in four units, or split a length and crop a photo by the golden ratio.

Tools in this group

16 9 Aspect Ratio Calculator — Type a width or a height to get the matching 16:9 size, or enter any image or video size to crop or pad it to 16:9.
Aspect Ratio Converter — Enter a size, pick the target ratio and a method. You get the new size and how many pixels are cut or added on each side.
Golden Ratio Calculator — Enter one length to get its golden ratio partner, or enter your photo size to see the golden crop with a phi grid.
Image Resizing Calculator — Work out the new pixel size of a picture from a width, a height, a percentage, or a box it has to fit or fill. Nothing is uploaded.
Photo Backdrop Sizes — A chart of common backdrop sizes in four units, and a calculator for the backdrop you need behind your subject.
Pixel Ratio Calculator (Pixel Aspect Ratio) — Convert pixels to a ratio, find the display aspect ratio from a storage size and PAR, or find the PAR a target ratio needs.
Screen Aspect Ratio Calculator — Get a monitor or display's aspect ratio from its resolution, its width and height from the diagonal, or its pixel density.