Aspect Ratio Calculator
Reduce dimensions to a ratio and resize while preserving proportions.
Result appears here.
Resize without stretching
Enter original pixel dimensions. Optionally enter one target dimension; the matching dimension is calculated from the original proportions. When both targets are entered, target width takes priority.
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FAQ
Can decimal dimensions be used?
Yes for calculation, although exported image dimensions are normally rounded to whole pixels.
Does this resize an image?
No. It calculates dimensions only and does not modify or upload a file.
Reviewed: 2026-08-09