Aspect ratio calculator
This tool reduces width and height by their greatest common divisor and scales one target dimension. The complete operation runs in temporary browser memory, so the input is never uploaded or stored by LocalKit.
The input stays available if you need to adjust a setting.
How to use aspect ratio calculator
- 1
Add the source values or files shown in the workbench.
- 2
Choose the settings for aspect ratio calculator.
- 3
Run the tool, inspect the local result, then copy or download it.
A realistic example
Reduce 1920 × 1080 to 16:9 and calculate a 720-pixel target height for width 1280. The source and generated result remain in this browser tab throughout the operation.
Supported formats and limits
Input and output: positive dimensions.
- Inputs are rounded to whole pixel dimensions before ratio reduction.
- Available memory and browser limits still apply to very large inputs.
Questions people ask
What does aspect ratio calculator change?
This tool reduces width and height by their greatest common divisor and scales one target dimension.
Is any input sent to a server?
No. LocalKit performs this operation in your current browser tab.