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An aspect ratio calculator determines the proportional relationship between width and height, expressed as W:H. It lets you scale dimensions while preserving the original ratio to prevent distortion.

공식

Scale by width: New Height = Original Height × (New Width ÷ Original Width)

단계별 가이드

1Aspect Ratio = Width : Height, simplified by dividing both by their GCD
2GCD (Greatest Common Divisor) found using the Euclidean algorithm
3Scale by width: New Height = Original Height × (New Width ÷ Original Width)
4Scale by height: New Width = Original Width × (New Height ÷ Original Height)

풀어진 예시

입력

1920 × 1080 pixels

결과

Aspect ratio 16:9 — scale to 1280 wide gives 720 height

입력

2560 × 1440 pixels

결과

Aspect ratio 16:9 — scale to 1920 wide gives 1080 height

입력

1024 × 768 pixels

결과

Aspect ratio 4:3 — scale to 800 wide gives 600 height

자주 묻는 질문

What is Aspect Ratio?

An aspect ratio calculator determines the proportional relationship between width and height, expressed as W:H. It lets you scale dimensions while preserving the original ratio to prevent distortion

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, simplified by dividing both by their GCD. Each step in the calculation is shown so you can verify the result manually.