How to Calculate Aspect Ratio
What is Aspect Ratio?
Aspect ratio is the proportional relationship between width and height of an image, screen, or rectangle. It is expressed as width:height (e.g., 16:9). Maintaining the aspect ratio when resizing prevents distortion.
Formula
Step-by-Step Guide
- 1Aspect ratio = Width / Height, expressed as a ratio reduced to lowest terms
- 2To resize maintaining aspect ratio: new height = new width × (original height / original width)
- 3Common ratios: 16:9 (widescreen TV/video), 4:3 (old TV, some tablets), 1:1 (square, Instagram), 3:2 (DSLR cameras)
Worked Examples
Frequently Asked Questions
What is Aspect Ratio?
Aspect ratio is the proportional relationship between width and height of an image, screen, or rectangle. It is expressed as width:height (e
How accurate is the Aspect Ratio calculator?
The calculator uses the standard published formula for aspect ratio. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Aspect Ratio calculator use?
This calculator works with inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Aspect Ratio calculator use?
The core formula is: Aspect ratio = Width / Height, expressed as a ratio reduced to lowest terms. Each step in the calculation is shown so you can verify the result manually.
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