Monospace · Carrois Apostrophe
Fira Mono
Find the font. Find its kind.
CSSfont-family: 'Fira Mono', monospace; font-weight: 400; font-style: normal; line-height: 1.1;
Fira Mono is a free monospace font by Carrois Apostrophe, on Google Fonts since 2014. Among the 99 monospaced fonts on FontKind, Fira Mono has an x-height taller than 64%, is of average width and, at its regular weight, is lighter than 82%. Its thickest strokes are 1.3 times its thinnest: moderate stroke contrast.
01 / Light table
Laid on top of Oxygen Mono
Fira Mono on one light table with its two closest fonts, Oxygen Mono (74 out of 100) and JuliaMono (74). Oxygen Mono has nearly identical proportions; JuliaMono has an x-height 4% taller.
Fira Mono and Oxygen Mono laid on top of each other.
Ink shared with Fira MonoOxygen Mono…
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 Fira Mono 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
Fira Mono in 3 weights
3 weights, 400–700
- 400 Regular
- 500 Medium
- 700 Bold
04 / Facts
Who made Fira Mono, and can you use it?
- Designer
- Carrois Apostrophe
- Kind
- Monospace
- Styles
- 3 weights, 400–700
- On Google Fonts since
- 2014
- Character sets
- cyrillic, cyrillic-ext, greek, greek-ext, latin, latin-ext, symbols2
- 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.
Fira Mono 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 Fira Mono, or upload it with Canva Pro. Canva’s help
- Cricut
- Once installed. Design Space lists Fira Mono under System. Fonts for Cricut →
From each app’s own font list or help pages, read on 28 September 2026.
05 / Measurements
Fira Mono, measured
Taken from the font file's own outlines, regular style
- x-height
- 52.7% of the emlowercase x
- Cap height
- 68.9% of the emcapitals
- x / cap
- 0.76lowercase against capitals
- Width
- 60.0% of the emaverage lowercase
- Ink
- 35%letter box filled
- Contrast
- 1.32 : 1moderate stroke contrast
Where it stands among monospaced fonts
Ranked against all 99 monospaced fonts on FontKind
x-heightLarger than 64% of monospaced fonts
WidthNear the middle of monospaced fonts
InkLighter than 82% of monospaced fonts
ContrastMore contrast than 92% of monospaced fonts
06 / Similar fonts
Fonts similar to Fira Mono
Matched letter by letter · its own family apart
Fira Mono's letters under another nameFira Code
- Oxygen Mono74Nearly identical proportions
- JuliaMono74x-height 4% taller
- Source Code Pro74x-height 8% shorter
- League Mono7218% wider · x-height 5% shorter · 10% heavier
- 0xProto7117% heavier · less stroke contrast · x-height 4% taller
- Spline Sans Mono7115% heavier · x-height 4% taller · less stroke contrast
All 100 fonts similar to Fira Mono →Compare side by side →Get Fira Mono on Google Fonts
07 / Swap
Swap Fira Mono without a jump
Running text within 3% of the width, x-height within 5%
- Oxygen Mono74same text width · x-height 1.6% taller
- JuliaMono74same text width · x-height 4.4% taller
- Spline Sans Mono71same text width · x-height 3.5% taller
- Google Sans Code69same text width · x-height 0.7% shorter
- Cascadia Mono69text 2.4% narrower · x-height 1.8% shorter
- Cascadia Code69text 2.4% narrower · x-height 1.8% shorter
Fallback while it loads
Until Fira Mono loads, this sets Courier New in its place at 100% of its size, so running text keeps Fira Mono’s width and lines keep their height: nothing moves when it arrives.
@font-face {
font-family: 'Fira Mono Fallback';
src: local('Courier New');
size-adjust: 99.98%;
ascent-override: 93.52%;
descent-override: 26.50%;
line-gap-override: 0.00%;
}
font-family: 'Fira Mono', 'Fira Mono Fallback', monospace;08 / Pairs
Used together with Fira Mono
Of the 546 home pages that load Fira Mono, 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
- Fira Sans16%90 sites · 27× chanceSame designer
- Inter12%64 sites · 1.2× chance
- Roboto9.9%54 sites · 0.5× chance
More than chanceFira Sans 27×
Pair checkerFira Mono + 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 Fira Mono
Answered from its licence, Google Fonts and each app’s own font list
Is Fira Mono free for commercial use?
Yes. Fira Mono 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 Fira Mono?
FontKind doesn’t host Fira Mono’s files: it comes free from Google Fonts . On its page there, choose Get font, then Download all, and unzip the file. It holds three font files, one per style. On Windows or a Mac, double-click each font file and choose Install, then restart any app that was open, Word included.
Is Fira Mono in Microsoft Word?
Not until you install it: Fira Mono 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 Fira Mono Medium. For someone who hasn’t installed it, turn on Embed fonts in the file in Word’s save options: its licence allows that.
Is Fira Mono in Google Docs?
Most likely. Search for Fira Mono under More fonts in the font menu of Docs; added there, it is in Sheets and Slides too.
Is Fira Mono in Figma?
Yes: Fira Mono is in Figma’s font menu with all three weights, in the browser and the desktop app, with nothing to install.
How many weights does Fira Mono have?
Fira Mono comes in three weights: Regular (400), Medium (500) and Bold (700).
Who designed Fira Mono?
Fira Mono was designed by Carrois Apostrophe. It has been on Google Fonts since June 2014. Carrois Apostrophe also made Fira Sans, Share Tech, Share Tech Mono and six more on FontKind.
What fonts are similar to Fira Mono?
The closest in our letter-by-letter match are Oxygen Mono (74), JuliaMono (74) and Source Code Pro (74), out of 100. Next to Fira Mono, Oxygen Mono has nearly identical proportions. See all 100 fonts like Fira Mono.