Compare Fonts → Serif → Cinzel vs Source Serif 4

Cinzel vs Source Serif 4

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

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Cinzel

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	Cinzel	Source Serif 4	Difference
x-heightHeight of lowercase letters, as a share of the font size. Higher reads larger at the same point size.	50.0%	47.5%	2.5%
Cap heightHeight of capitals, as a share of the font size.	70.0%	67.0%	3.0%
x-height to cap ratioProportion of lowercase to uppercase. Higher feels more modern and open.	0.71	0.71	0.01
Stroke weightMeasured thickness of a vertical stroke. Higher is heavier on the page.	7.4%	9.9%	2.5%
Stroke contrastHorizontal stroke divided by vertical. 1.0 is even; below 0.5 means strong thick-thin modulation.	0.41	0.53	0.13
Average character widthMean lowercase advance. Higher takes more horizontal space.	63.9%	55.1%	8.9%

Average character width: Cinzel measures 63.9%, Source Serif 4 measures 55.1%. Mean lowercase advance. Higher takes more horizontal space.
Stroke weight: Cinzel measures 7.4%, Source Serif 4 measures 9.9%. Measured thickness of a vertical stroke. Higher is heavier on the page.
Stroke contrast: Cinzel measures 0.41, Source Serif 4 measures 0.53. Horizontal stroke divided by vertical. 1.0 is even; below 0.5 means strong thick-thin modulation.