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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.

공식

Aspect ratio = Width / Height, expressed as a ratio reduced to lowest terms

단계별 가이드

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)

풀어진 예시

입력

1920×1080 pixels

결과

16:9 aspect ratio

GCD(1920,1080) = 120 → 16:9

입력

1280px wide at 16:9

결과

720px tall

1280 × (9/16) = 720

자주 묻는 질문

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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