Aspect Ratio Calculator
Calculate and convert aspect ratios
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Original Dimensions
Aspect Ratio
16:9
Ratio
1.7778
Decimal
120
GCD
Preset Ratios
Resize Maintaining Ratio
Common Resolutions at 16:9
| Width | Height | Total Pixels |
|---|---|---|
| 320 | 180 | 57,600 |
| 640 | 360 | 230,400 |
| 1280 | 720 | 921,600 |
| 1920 | 1080 | 2,073,600 |
| 2560 | 1440 | 3,686,400 |
| 3840 | 2160 | 8,294,400 |
How to Use Aspect Ratio Calculator
- 1Enter width and height to calculate the aspect ratio.
- 2Use presets for common ratios (16:9, 4:3, etc.).
- 3Enter a new width or height to scale proportionally.
About Aspect Ratio Calculator
Calculate aspect ratios from image or video dimensions. Scale to new dimensions while maintaining the ratio. Common presets for 16:9, 4:3, 1:1, 21:9, and 9:16 (portrait).
Frequently Asked Questions
What is aspect ratio?
Aspect ratio is the proportional relationship between width and height. 16:9 means for every 16 units of width, there are 9 units of height.
What aspect ratio should I use for YouTube?
YouTube uses 16:9 (1920×1080 for Full HD). For YouTube Shorts, use 9:16 (1080×1920).