Aspect Ratio Calculator
Original size in, one new dimension in, the other comes out — distortion impossible.
Aspect ratio
16 : 9
Calculated on your device.
Common questions
How do I resize to a different width without distorting?
Enter the original width and height, then type your new width — the matching height computes instantly (and vice versa). The simplified ratio (like 16 : 9) shows above so you know what you're working with.
What are the common aspect ratios?
16:9 for video and monitors, 4:3 for older screens and tablets, 1:1 for social squares, 9:16 for stories and Reels, 3:2 for photography, 21:9 ultrawide. Type any of their dimensions above to verify.
Why does my resized image look stretched?
The new dimensions don't match the original ratio — one axis was scaled more than the other. Lock one dimension here, take the computed other, and it can't happen.