Serif · Aoife Mooney
BioRhyme
More axes (1)More axes (0)
Find the font. Find its kind.
CSSfont-family: 'BioRhyme', serif; font-weight: 400; font-style: normal; line-height: 1.1;
BioRhyme is a free serif by Aoife Mooney, on Google Fonts since 2016. Among the 354 serifs on FontKind, BioRhyme has an average x-height, is wider than 91% and, at its regular weight, is darker than 92%. Its thickest strokes are 1.3 times its thinnest: nearly even strokes.
01 / Light table
Laid on top of Hepta Slab
BioRhyme on one light table with its two closest fonts, Hepta Slab (86 out of 100) and Stint Ultra Expanded (84). Hepta Slab is 31% lighter, with an x-height 13% taller and less stroke contrast; Stint Ultra Expanded is 38% lighter and 8% wider.
BioRhyme and Hepta Slab laid on top of each other.
Ink shared with BioRhymeHepta Slab…
Most different letters first; the figure is the share of ink the fonts have in common. Where the fonts agree the letters cancel to black: every white sliver is a real difference.
02 / Letters
The BioRhyme alphabet
Capitals, lowercase, figures and signs · weight 400
Tap the letters you like, here and in other fonts, to find the fonts whose letters look most like them.
- &
- ?
- !
- @
- %
- (
- )
03 / Weights
BioRhyme in 7 weights
7 weights, 200–800 · variable from 200 to 800
Variable weight, 200 to 800
- 200 Extra light
- 300 Light
- 400 Regular
- 500 Medium
- 600 Semibold
- 700 Bold
- 800 Extra bold
04 / Facts
Who made BioRhyme, and can you use it?
- Designer
- Aoife Mooney
- Kind
- Serif
- Styles
- 7 weights, 200–800
- Variable axes
- Width 100–125, Weight 200–800
- On Google Fonts since
- 2016
- Character sets
- latin, latin-ext
- Licence
- SIL Open Font License 1.1
Can I use it?
- Commercial use
- Yes.
- Logos
- Yes.
- Websites and apps
- Yes. Self-hosted or loaded from Google Fonts.
- PDFs and documents
- Yes.
- Changes
- Yes.
- Sharing the files
- Yes, but not for sale. With the licence.
BioRhyme is under the SIL Open Font License 1.1. This is a plain summary, not legal advice: the licence itself decides.
Already in your apps?
- Google Docs
- Most likely. Under More fonts, in Sheets and Slides too. Google’s guide
- Word, PowerPoint
- No. Install it from Google Fonts first. Microsoft’s list
- Figma
- Yes. Built in, nothing to install. Figma’s help
- Canva
- Not verified. Search its font menu for BioRhyme, or upload it with Canva Pro. Canva’s help
- Cricut
- Once installed. Design Space lists BioRhyme under System. Fonts for Cricut →
From each app’s own font list or help pages, read on 28 September 2026.
05 / Measurements
BioRhyme, measured
Taken from the font file's own outlines, regular style
- x-height
- 47.1% of the emlowercase x
- Cap height
- 68.6% of the emcapitals
- x / cap
- 0.69lowercase against capitals
- Width
- 60.7% of the emaverage lowercase
- Ink
- 53%letter box filled
- Contrast
- 1.29 : 1nearly even strokes
Where it stands among serifs
Ranked against all 354 serifs on FontKind
x-heightNear the middle of serifs
WidthWider than 91% of serifs
InkDarker than 92% of serifs
ContrastMore even than 85% of serifs
06 / Similar fonts
Fonts similar to BioRhyme
Matched letter by letter · its own family apart
BioRhyme's own familyBioRhyme Expanded
- Hepta Slab8631% lighter · x-height 13% taller · less stroke contrast
- Stint Ultra Expanded8438% lighter · 8% wider
- Sanchez8421% lighter · 9% narrower · x-height 4% taller
- Arvo799% narrower · x-height 7% taller · 15% lighter
- Montagu Slab76more stroke contrast · 19% lighter · 8% narrower
- Vast Shadow7532% wider · 6% lighter
All 100 fonts similar to BioRhyme →Compare side by side →Get BioRhyme on Google Fonts
07 / Swap
Swap BioRhyme without a jump
Running text within 3% of the width, x-height within 5%
Fallback while it loads
Until BioRhyme loads, this sets Times New Roman in its place at 133.1% of its size, so running text keeps BioRhyme’s width and lines keep their height: nothing moves when it arrives.
@font-face {
font-family: 'BioRhyme Fallback';
src: local('Times New Roman');
size-adjust: 133.12%;
ascent-override: 84.66%;
descent-override: 31.70%;
line-gap-override: 0.00%;
}
font-family: 'BioRhyme', 'BioRhyme Fallback', serif;08 / Pairs
Used together with BioRhyme
Of the 1,306 home pages that load BioRhyme, the share that load each font too, and how that compares with chance.
Same page, not which sets the headings · HTTP Archive , 1 September 2026
- Montserrat20%267 sites · 1.5× chance
- Roboto13%169 sites · 0.6× chance
- Open Sans12%153 sites · 0.6× chance
- Cabin6.4%84 sites · 14× chance
- Inter5.7%75 sites · 0.6× chance
- Poppins5.6%73 sites · 0.5× chance
More than chanceGoblin One 1,573×Cabin 14×Montserrat 1.5×
Pair checkerBioRhyme + any fontHow many of the 6,276,350 home pages counted load the two together, and how that compares with chance.Check this font with any other09 / Questions
Questions about BioRhyme
Answered from its licence, Google Fonts and each app’s own font list
Is BioRhyme free for commercial use?
Yes. BioRhyme is under the SIL Open Font License 1.1 , which allows commercial use at any scale, logos, websites, apps and PDFs included.
How do I download and install BioRhyme?
FontKind doesn’t host BioRhyme’s files: it comes free from Google Fonts . On its page there, choose Get font, then Download all, and unzip the file. It holds one variable file for every style, and a static folder with a file per style: install one set or the other, not both. On Windows or a Mac, double-click each font file and choose Install, then restart any app that was open, Word included.
Is BioRhyme in Microsoft Word?
Not until you install it: BioRhyme isn’t one of Microsoft 365’s cloud fonts. Installed, it is in Word’s font menu and PowerPoint’s. On Windows, its weights beyond Regular and Bold show as fonts of their own, such as BioRhyme ExtraLight and BioRhyme ExtraBold. For someone who hasn’t installed it, turn on Embed fonts in the file in Word’s save options: its licence allows that.
Is BioRhyme in Google Docs?
Most likely. Search for BioRhyme under More fonts in the font menu of Docs; added there, it is in Sheets and Slides too.
Is BioRhyme in Figma?
Yes: BioRhyme is in Figma’s font menu with all seven weights, in the browser and the desktop app, with nothing to install.
How many weights does BioRhyme have?
BioRhyme comes in seven weights, from ExtraLight (200) to ExtraBold (800). It is a variable font: it takes any weight from 200 to 800 and widths from 100% to 125%.
Who designed BioRhyme?
BioRhyme was designed by Aoife Mooney. It has been on Google Fonts since March 2016. Aoife Mooney also made Freeman.
What fonts are similar to BioRhyme?
The closest in our letter-by-letter match are Hepta Slab (86), Stint Ultra Expanded (84) and Sanchez (84), out of 100. Next to BioRhyme, Hepta Slab is 31% lighter, with an x-height 13% taller and less stroke contrast. Its own family, listed apart, adds BioRhyme Expanded. See all 100 fonts like BioRhyme.