Photo aspect ratio calculator.
Enter a width and height to simplify the ratio, calculate matching resize dimensions, and preview the shape. Everything runs in the browser.
3:2
Simplified ratio
3:2
Decimal
1.500
Width resize
1200 x 800
Height resize
1200 x 800
Resizing
Resizing keeps the whole photo and changes both dimensions together. Use it when the image already has the shape you need.
Cropping
Cropping changes the visible area to fit a target shape. Use it when a print or template needs a different ratio.
Print resolution
For crisp prints, aim for about 300 pixels per inch. A 4 x 6 print is strongest around 1200 x 1800 pixels or higher.