Fonts that go with Roboto Flex
Of the 10,221 home pages that load Roboto Flex, 21% also load Roboto and 12% Open Sans. Roboto Flex meets 35 fonts on 50 sites or more. Weighed against how common each font is, Roboto Serif comes with it most: on 100 sites, where chance would give 5.1.
Fonts on the same home page, not which one sets the headings · HTTP Archive , 1 September 2026
01 / Set together
How the pairs look
Each font drawn from its own outlines, one as a heading and the other as text, then the other way round: the crawl does not say which sets the headings.
Roboto Flex + Roboto
2,160 sites · 1× chance
Heading · Roboto Flex
Roboto FlexText · Roboto
Heading · Roboto
RobotoText · Roboto Flex
Roboto Flex + Roboto Serif
100 sites · 20× chance
Heading · Roboto Flex
Roboto FlexText · Roboto Serif
Heading · Roboto Serif
Roboto SerifText · Roboto Flex
Roboto Flex + Roboto Mono
137 sites · 5.9× chance
Heading · Roboto Flex
Roboto FlexText · Roboto Mono
Heading · Roboto Mono
Roboto MonoText · Roboto Flex
02 / Most often
Used most with Roboto Flex
The share of its 10,221 home pages that load each font too, and how many times as often as chance would have it: 1× is chance.
- Roboto21%2,160 sites · 1× chanceRoboto Flex’s own family
- Open Sans12%1,277 sites · 0.7× chance
- Montserrat6.8%693 sites · 0.5× chance
- Poppins5.5%564 sites · 0.5× chance
- Inter4.4%445 sites · 0.4× chance
- Roboto Condensed3.6%363 sites · 1.8× chanceRoboto Flex’s own family
- Raleway3%308 sites · 0.7× chance
- Roboto Slab3%302 sites · 2.1× chanceRoboto Flex’s own family
- Noto Sans2.4%241 sites · 1.4× chance
03 / Beyond chance
Used with it beyond chance
Weighed against how common each font is: the sites that load both, against those that would if every site picked its fonts at random, each as often as sites use it. From 50 sites, and not one theme copied.
- Roboto Serif20×100 sites, where chance gives 5.1Roboto Flex’s own family
- Roboto Mono5.9×137 sites, where chance gives 23Roboto Flex’s own family
- Fira Sans3×190 sites, where chance gives 63
- Rajdhani2.5×60 sites, where chance gives 24
- Roboto Slab2.1×302 sites, where chance gives 143Roboto Flex’s own family
- PT Serif2×100 sites, where chance gives 50
- Josefin Sans1.9×136 sites, where chance gives 70
- Roboto Condensed1.8×363 sites, where chance gives 205Roboto Flex’s own family
04 / Questions
Pairing Roboto Flex
Answered from HTTP Archive’s crawl of 1 September 2026 and each font’s licence
What font goes with Roboto Flex?
On the 10,221 home pages that load Roboto Flex (HTTP Archive, September 2026), the fonts loaded most often with it are Roboto (2,160 sites, 21% of them), Open Sans (1,277) and Montserrat (693). They are on the same page: the data does not say which one sets the headings.
What fonts pair well with Roboto Flex?
Weighed against how common each font is, sites choose Roboto Serif with Roboto Flex most: 20× as often as chance would have it, on 100 sites where chance gives 5.1. Then Roboto Mono (5.9×) and Fira Sans (3×).
Can I use Roboto Flex and Roboto Serif together for free?
Yes: both are free, commercial work included. Roboto Flex and Roboto Serif are both under the SIL Open Font License. Each font’s page says what its licence allows.