About the Aspect Ratio Calculator
The Aspect Ratio Calculator finds the greatest common divisor for whole-number dimensions and computes a proportional width or height. If both new dimensions are entered, width takes priority for the matched calculation.
How to use the Aspect Ratio Calculator
- Enter original width and height.
- Optionally enter one desired new dimension.
- Calculate the reduced ratio and corresponding dimension.
Practical tips
- Use the Image Resizer to actually create the resized file.
- Some display ratios use non-integer source dimensions and are shown approximately.