Compare Fonts → Sans Serif → Archivo vs Roboto Flex

Archivo vs Roboto Flex

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

Try your own text

Archivo

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	Archivo	Roboto Flex	Difference
x-heightHeight of lowercase letters, as a share of the font size. Higher reads larger at the same point size.	52.6%	51.4%	1.2%
Cap heightHeight of capitals, as a share of the font size.	68.6%	71.1%	2.5%
x-height to cap ratioProportion of lowercase to uppercase. Higher feels more modern and open.	0.77	0.72	0.04
Stroke weightMeasured thickness of a vertical stroke. Higher is heavier on the page.	9.2%	9.3%	0.1%
Stroke contrastHorizontal stroke divided by vertical. 1.0 is even; below 0.5 means strong thick-thin modulation.	0.81	0.80	0.01
Average character widthMean lowercase advance. Higher takes more horizontal space.	49.6%	49.5%	0.2%

x-height to cap ratio: Archivo measures 0.77, Roboto Flex measures 0.72. Proportion of lowercase to uppercase. Higher feels more modern and open.
x-height: Archivo measures 52.6%, Roboto Flex measures 51.4%. Height of lowercase letters, as a share of the font size. Higher reads larger at the same point size.
Stroke weight: Archivo measures 9.2%, Roboto Flex measures 9.3%. Measured thickness of a vertical stroke. Higher is heavier on the page.