Compare Fonts → Monospace → PT Mono vs Anonymous Pro

PT Mono vs Anonymous Pro

Both are monospace faces on Google Fonts. PT Mono has the larger x-height, so it looks bigger at the same size. PT Mono takes more horizontal space.

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PT Mono

Handgloves & Quartz Jockeys

The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs, then ship it to 1,842 Grove Street by 9:30 AM.

Handgloves & Quartz Jockeys

The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs, then ship it to 1,842 Grove Street by 9:30 AM.

Measured from the font files. Heights and widths are shown as a share of the font size, so they compare directly at any point size.
Measurement	PT Mono	Anonymous Pro	Difference
x-heightHeight of lowercase letters, as a share of the font size. Higher reads larger at the same point size.	50.0%	45.5%	4.5%
Cap heightHeight of capitals, as a share of the font size.	70.0%	63.7%	6.3%
x-height to cap ratioProportion of lowercase to uppercase. Higher feels more modern and open.	0.71	0.71	0.00
Stroke weightMeasured thickness of a vertical stroke. Higher is heavier on the page.	8.3%	6.7%	1.6%
Stroke contrastHorizontal stroke divided by vertical. 1.0 is even; below 0.5 means strong thick-thin modulation.	0.81	0.85	0.04
Average character widthMean lowercase advance. Higher takes more horizontal space.	60.0%	54.6%	5.4%

Average character width: PT Mono measures 60.0%, Anonymous Pro measures 54.6%. Mean lowercase advance. Higher takes more horizontal space.
x-height: PT Mono measures 50.0%, Anonymous Pro measures 45.5%. Height of lowercase letters, as a share of the font size. Higher reads larger at the same point size.
Stroke weight: PT Mono measures 8.3%, Anonymous Pro measures 6.7%. Measured thickness of a vertical stroke. Higher is heavier on the page.