Aspect Ratio Calculator
Find the ratio of any size — then scale it to a new one.
Original size
Width & height
Width
Height
Aspect ratio
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New size
Scaled to a target ratio
Aspect ratio
16 : 9 — Widescreen
4 : 3 — Standard
21 : 9 — Ultrawide
1 : 1 — Square
3 : 2 — Classic
5 : 4
9 : 16 — Vertical
3 : 4 — Portrait
2 : 3 — Portrait
Use original ratio
Custom…
Ratio width
Ratio height
New width
New height