16:9
Matching height608pixels
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Temporary processing
This calculator runs from the values you enter and does not require a media upload.
Creator guide
Read the guideHow to Calculate Aspect Ratio and Matching Dimensions
Find matching dimensions from one known width or height and keep images, video and layouts in their original proportions.
How to use Aspect Ratio Calculator
- Enter the original width and height, such as 1920 and 1080 for 16:9.
- Enter New width. At 1280 the matching height is 720. The current interface calculates height from width, not the reverse.
- The displayed pixel count is rounded to a whole number. For a required height, calculate height × original width ÷ original height separately; no image or video file is changed.
About this tool
Calculate matching dimensions while preserving aspect ratio. Mediaivo keeps the workflow deliberately focused so you can finish one task without learning a full editing suite.
Need more context? Read How to Calculate Aspect Ratio and Matching Dimensions for practical settings, checks and trade-offs.