Aspect Ratio Calculator

Calculate perfect dimensions while maintaining aspect ratio

Original Size

Enter your current dimensions

Aspect Ratio

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Target Size

Enter one dimension to calculate the other

Scale Factor

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How to Use

Step 1:

Enter the original width and height of your image/video

Step 2:

Enter either the target width OR target height - the other will be calculated automatically

Formula Used

Aspect Ratio: W1 ÷ H1 = W2 ÷ H2

If W2 is entered: H2 = H1 × (W2 ÷ W1)
If H2 is entered: W2 = W1 × (H2 ÷ H1)