The circumflex — the little hat sitting over a vowel, as in ô, â, and û — is one of French’s five accent marks, and it’s the one with the best story behind it.
Most of the time, that little hat is a tombstone. It marks the spot where a letter, usually an s, dropped out of the word centuries ago. Once you notice the pattern, you can’t unsee it:
- forêt → forest
- hôpital → hospital
- île → isle
- pâte → paste
- coût → cost
- bête → beast
The English cognates kept the s. French lost it and put a hat on the vowel to mark the loss. That’s not a coincidence — it’s the same word, tracked across a thousand years of sound change.
This guide covers how to type every circumflex vowel on Windows, Mac, and mobile, what the mark actually does to pronunciation, and the 1990 spelling reform that made some circumflexes optional.
The Five Circumflex Vowels
French uses the circumflex over all five vowels:
| Character | Example word | Meaning |
|---|---|---|
| â | pâte | dough/paste |
| ê | forêt | forest |
| î | île | island |
| ô | hôpital | hospital |
| û | coût | cost |
You’ll also see the uppercase forms — Â Ê Î Ô Û — in headlines, all-caps text, and at the start of sentences. (And yes, capitals keep their accents in French. École is correct; Ecole is not.)
What Does the Circumflex Actually Do?
Three jobs, depending on the word:
1. It marks a lost letter (usually s). This is the etymological function described above — the most common and most interesting.
2. It changes pronunciation. On ô and â especially, the circumflex signals a longer, more closed vowel sound. Côte (coast) and cote (rating) sound different in careful French — the circumflex vowel is longer and rounder.
3. It distinguishes homographs. A handful of words rely on the circumflex to avoid confusion:
- sur (on) vs sûr (sure)
- du (of the) vs dû (past participle of devoir)
- mur (wall) vs mûr (ripe)
That third category is why the circumflex still matters even where pronunciation has flattened out — drop the hat and you’ve written a different word.
How to Type Circumflex Letters on Windows
Alt Codes:
| Character | Code | Character | Code | |
|---|---|---|---|---|
| â | Alt + 0226 | Â | Alt + 0194 | |
| ê | Alt + 0234 | Ê | Alt + 0202 | |
| î | Alt + 0238 | Î | Alt + 0206 | |
| ô | Alt + 0244 | Ô | Alt + 0212 | |
| û | Alt + 0251 | Û | Alt + 0219 |
Hold Alt, type the code on your numeric keypad, release. Num Lock must be on.
US International keyboard (much faster):
If you type French regularly, this is the better path. With the US International layout enabled, the circumflex becomes a dead key:
Press Shift + 6 (^), release, then the vowel → ô
One keystroke pattern for all five vowels, no codes to memorize. Our full setup guide walks through enabling it.
French keyboard layout (AZERTY):
The dedicated French layout puts the circumflex on its own key, but it also rearranges the entire alphabet into AZERTY. Only worth it if you’re typing French near-exclusively.
How to Type Circumflex Letters on Mac
Option + I, then the vowel:
| You type | You get |
|---|---|
| Option + I, then A | â |
| Option + I, then E | ê |
| Option + I, then I | î |
| Option + I, then O | ô |
| Option + I, then U | û |
The pattern is consistent — Option + I is the circumflex dead key, then you type whichever vowel needs the hat. For uppercase, add Shift to the second keystroke: Option + I, then Shift + O → Ô.
Press and hold:
Hold any vowel key and the circumflex version appears in the popup alongside the other accent options.
How to Type Circumflex Letters on Mobile
iPhone and Android:
- Press and hold the vowel key (a, e, i, o, or u)
- Slide to the circumflex version in the popup
- Release
This is the fastest method on mobile and works out of the box on both platforms — no keyboard changes needed.
⚙️ Need â, ê, î, ô, or û fast? Our Device Shortcut Generator shows the exact shortcut for your device.”
The 1990 Reform: When the Circumflex Became Optional
Here’s a wrinkle worth knowing about.
In 1990, the Académie française approved a set of spelling reforms that made the circumflex optional on i and u in most cases — so maître could also be written maitre, and coût could be cout. The reasoning was that on those two vowels, the circumflex no longer marks any pronunciation difference; it’s purely historical.
The reform kept the circumflex mandatory in two cases:
- On a, e, and o, where it still affects pronunciation
- Wherever it distinguishes homographs (sûr, dû, mûr)
In practice: the reform is widely known but inconsistently adopted. Traditional spellings remain extremely common in publishing, education, and everyday writing, and many French speakers have strong feelings about it. If you’re learning French, keep using the circumflex — it’s never wrong, and dropping it can look like an error to readers who don’t follow the reform.
Frequently Asked Questions
Does the circumflex change how a word sounds?
On â, ê, and ô, yes — the vowel is longer and more closed. On î and û, generally no in modern French, which is exactly why the 1990 reform made those two optional.
Is the circumflex the same as the caret symbol (^)?
Visually similar, but they’re different characters with different Unicode values. The standalone ^ on your keyboard is a caret used in math and code; the circumflex is a combining diacritic that sits over a vowel.
Do other languages use the circumflex?
Yes — Portuguese (você, três), Welsh, Turkish, and Vietnamese all use it, though the pronunciation rules differ by language. Portuguese uses it much like French does, marking closed vowels.
Can I just skip the circumflex when typing quickly?
For informal messages, French speakers will understand you. But for anything formal, and especially with the homograph pairs (sur/sûr, du/dû, mur/mûr), skipping it changes meaning or reads as an error.
The Bottom Line
The circumflex is French’s most historically interesting accent — a small hat marking where an s vanished centuries ago, connecting forêt to forest and hôpital to hospital. On Mac it’s one consistent pattern (Option + I, then the vowel); on Windows the US International layout makes it a two-keystroke habit. Learn the pattern once and all five vowels come along for free.