Aspect Ratio Calculator
Calculate dimensions based on aspect ratio or find the ratio of given dimensions.
Original Dimensions (Ratio Source)
Ratio: 16:9
New Dimensions
Common Presets
What is Aspect Ratio?
Aspect ratio is the proportional relationship between the width and height of an image or screen. It is usually expressed as two numbers separated by a colon, like 16:9.
Common Ratios
- 16:9: Standard definition for HDTV, Full HD, and 4K. Most modern screens.
- 4:3: Old TV standard also used in some tablets (iPad).
- 21:9: Ultrawide monitors and cinematic movie formatting.
- 1:1: Square ratio, common on Instagram.
Formula
W1 / H1 = W2 / H2
To find Height: H2 = W2 * (H1 / W1)