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Roboto Flex

Roboto Flex’s Grade axis (GRAD) appears in only three other families. It has 13 variable axes, more than any other family in the library.

Outlines drawn from the RobotoFlex file at weight 400. The dashed line is the median x-height of the sans serifs.

Measure, per 1,000 em	Roboto Flex	Median of 732 sans serifs
Ascender (top of d)	750	740
Cap height (top of H)	711	702
x-height (top of x)	514	519
Descender (foot of p)	−203	−213
x-height ÷ cap height	0.72	0.70
Average lowercase width	495	522
Ink coverage, a–z	44.4%	40.2%

Where it sitsEvery sans serif family is a dot

X-height across the 716 sans serifs with ascenders

294672

Just below: Mooli, Istok Web; just above: Almarai, Bpmf Zihi Kai Std

Average lowercase width across the 732 sans serifs

1831,319

Just below: Snippet, Sulphur Point; just above: Alegreya Sans SC, Changa

Weights and styles

One variable file per style covers every weight from 100 to 1000, with no italic; nine of the nine standard steps fall inside that range.

Axis	Tag	Range	In the library
Optical size	opsz	8 to 144	29 families
Slant	slnt	-10 to 0	16 families
Width	wdth	25 to 151	99 families
Weight	wght	100 to 1000	545 families
Grade	GRAD	-200 to 150	axis page
Parametric Thick Stroke	XOPQ	27 to 175	this family only
Parametric Counter Width	XTRA	323 to 603	this family only
Parametric Thin Stroke	YOPQ	25 to 135	2 families
Parametric Ascender Height	YTAS	649 to 854	this family only
Parametric Descender Depth	YTDE	-305 to -98	this family only
Parametric Figure Height	YTFI	560 to 788	this family only
Parametric Lowercase Height	YTLC	416 to 570	2 families
Parametric Uppercase Height	YTUC	528 to 760	this family only

Scripts6 subsets · families sharing each

Inside the file

In the measured file: 948 glyphs and 826 mapped Unicode characters; seven OpenType feature tags.

Declared features: proportional figures and standard ligatures.

Measured neighboursClosest in proportion; differences per 1,000 em

Robototaller x-height, wider Vazirmatntaller x-height, wider Heebotaller x-height, wider Reddit Sanstaller x-height, wider Litertaller x-height, wider Asap Sharptaller x-height, wider

Outside the sans serif class

PT Serifshorter x-height, wider Cherry Swashshorter x-height, wider Codataller x-height, wider

Rank every family against Roboto Flex

Same designer

Font Bureau is also credited on Roboto. Santiago Orozco is credited on 18 other families in the library, from Josefin Sans (2010) to Belanosima (2023); the closest of them in x-height and width is Antic.