Question 1

What is an aspect ratio?

Accepted Answer

Aspect ratio is width divided by height. Common ratios: 16:9 (widescreen), 4:3 (standard), 1:1 (square), 21:9 (ultrawide).

Question 2

How do I calculate image dimensions from aspect ratio?

Accepted Answer

If width is 1920 at 16:9, height = 1920 × 9/16 = 1080. Multiply or divide while maintaining the ratio.

Question 3

How accurate are these calculations?

Accepted Answer

Our calculator uses double-precision floating-point arithmetic, accurate to about 15-16 significant digits for most calculations.

Question 4

Can I use the result in further calculations?

Accepted Answer

Yes, results are calculated to full precision. You can copy the exact value or use the rounded display depending on your needs.

Aspect Ratio Calculator - Free Online Tool

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