Aspect value calculator

The font-size-adjust CSS3 property allows you to specify the aspect value for a font. Browsers that support this property will adjust the x-height of a fallback font to match that of your desired font. By using this property you can ensure that font metrics are more consistent throughout a font-stack.

This tool calculates the aspect value for any font installed on your machine. Use this value as your font-size-adjust number.

Font

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Verdana

The above typeface will appear in Comic Sans if the font is not installed or is not recognised.