Calibri () is a digital
sans-serif typeface
A typeface (or font family) is the design of lettering that can include variations in size, weight (e.g. bold), slope (e.g. italic), width (e.g. condensed), and so on. Each of these variations of the typeface is a font.
There are thousands ...
family in the
humanist or modern style. It was designed by
Luc(as) de Groot in 2002–2004 and released to the general public in 2007, with
Microsoft Office 2007 and
Windows Vista.
In Office 2007, it replaced
Times New Roman
Times New Roman is a serif typeface. It was commissioned by the British newspaper ''The Times'' in 1931 and conceived by Stanley Morison, the artistic adviser to the British branch of the printing equipment company Monotype Imaging, Monotype, in ...
as the default typeface in
Word
A word is a basic element of language that carries an objective or practical meaning, can be used on its own, and is uninterruptible. Despite the fact that language speakers often have an intuitive grasp of what a word is, there is no consen ...
and replaced
Arial as the default in
PowerPoint,
Excel
ExCeL London (an abbreviation for Exhibition Centre London) is an exhibition centre, international convention centre and former hospital in the Custom House area of Newham, East London. It is situated on a site on the northern quay of the ...
,
Outlook, and
WordPad
WordPad is the basic word processor that has been included with almost all versions of Microsoft Windows from Windows 95 onwards. It is more advanced than Windows Notepad, and simpler than Microsoft Word and Microsoft Works (last updated in 2 ...
. De Groot described its subtly rounded design as having "a warm and soft character".
Calibri is part of the
ClearType Font Collection, a suite of fonts from various designers released with Windows Vista.
All start with the letter ''C'' to reflect that they were designed to work well with Microsoft's
ClearType text rendering system, a text rendering engine designed to make text clearer to read on
liquid-crystal display monitors. The other fonts in the same group are
Cambria,
Candara
Candara is a humanist sans-serif typeface designed by Gary Munch and commissioned by Microsoft. It is part of the ClearType Font Collection, a suite of fonts from various designers released with Windows Vista, all starting with the letter ''C'' ...
,
Consolas,
Constantia and
Corbel.
Characteristics
Calibri features subtly rounded stems and corners that are visible at larger sizes.
Its sloped form is a
"true italic" with handwriting influences, which are seen in many modern sans-serif typefaces.
The typeface includes characters from Latin,
Latin extended
Over a thousand characters from the Latin script are encoded in the Unicode Standard, grouped in several basic and extended Latin blocks. The extended ranges contain mainly precomposed letters plus diacritics that are equivalently encoded with ...
,
Greek
Greek may refer to:
Greece
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group.
*Greek language, a branch of the Indo-European language family.
**Proto-Greek language, the assumed last common ancestor ...
and
Cyrillic scripts. Calibri makes extensive use of sophisticated
OpenType formatting; it features a range of
ligatures
Ligature may refer to:
* Ligature (medicine), a piece of suture used to shut off a blood vessel or other anatomical structure
** Ligature (orthodontic), used in dentistry
* Ligature (music), an element of musical notation used especially in the me ...
as well as lining and
text figures
Text figures (also known as non-lining, lowercase, old style, ranging, hanging, medieval, billing, or antique figures or numerals) are numerals designed with varying heights in a fashion that resembles a typical line of running text, hence the ...
, indices (numbers enclosed by circles) up to 20, and an
alternate ''f'' and ''g'' accessible by enabling the fourth and fifth stylistic sets.
Some features in Calibri remain unsupported by Office, including true
small caps
In typography, small caps (short for "small capitals") are characters typeset with glyphs that resemble uppercase letters (capitals) but reduced in height and weight close to the surrounding lowercase letters or text figures. This is technica ...
, all-caps spacing, superscript and subscript glyphs and the ability to create arbitrary fractions; these may be accessed using programs such as
Adobe InDesign.
One potential source of confusion in Calibri is a visible
homoglyph, a pair of easily confused characters: the lowercase letter L and the uppercase letter i (l and I) of the
Latin script
The Latin script, also known as Roman script, is an alphabetic writing system based on the letters of the classical Latin alphabet, derived from a form of the Greek alphabet which was in use in the ancient Greece, Greek city of Cumae, in southe ...
are effectively indistinguishable; this is true of many other common fonts, however.
The design has similarities to de Groot's much more extensive
TheSans family (a
humanist font) and shares similarities with
humanist fonts, although this has straight ends rather than rounding.
, a
Hebrew alphabet
The Hebrew alphabet ( he, אָלֶף־בֵּית עִבְרִי, ), known variously by scholars as the Ktav Ashuri, Jewish script, square script and block script, is an abjad script used in the writing of the Hebrew language and other Jewis ...
version is in development.
De Groot has also said in 2016 that he would like if possible to add
Bulgarian alphabet variant letterforms at a later date.
Availability

Calibri is the default typeface of
Microsoft Office
Microsoft Office, or simply Office, is the former name of a family of client software, server software, and services developed by Microsoft. It was first announced by Bill Gates on August 1, 1988, at COMDEX in Las Vegas. Initially a ma ...
and much other Microsoft software. Joe Friend, a program manager on Word for
Office 2007's release, explained that the decision to switch to Calibri was caused by a desire to make the default font one optimised towards onscreen display: "We believed that more and more documents would never be printed but would solely be consumed on a digital device", and to achieve a "modern look".
Because of the long
development of Windows Vista, Calibri's development – from 2002 to 2005 – occurred several years before the release of that OS.
It was first presented in a 2005 beta of Windows Vista, then codenamed Longhorn,
and first became available for use with the Beta 2 version of Office 2007, released on May 23, 2006. Calibri and the rest of the ClearType Font Collection were finally released to the general public on January 30, 2007, since when it has been released with most Microsoft software environments.
Calibri is also distributed with
Excel Viewer,
PowerPoint Viewer, the
Microsoft Office
Microsoft Office, or simply Office, is the former name of a family of client software, server software, and services developed by Microsoft. It was first announced by Bill Gates on August 1, 1988, at COMDEX in Las Vegas. Initially a ma ...
Compatibility Pack for Windows, and the Open XML File Format Converter for Mac. For use in other operating systems and web apps, a license may be obtained from
Ascender Corporation
Ascender Corporation was a digital typeface foundry and software development company located in the Chicago suburb of Elk Grove Village, Illinois in the United States. It was founded in 2004 by a team of software developers, typographers, and font ...
and its parent company
Monotype Imaging.
The Calibri Light font was introduced in
Windows 8 and was retrospectively added to
Windows 7 and
Windows Server 2008 R2 as part of a software update.
Starting with Microsoft Office 2013, Calibri Light is the default font for
PowerPoint presentations and
Word
A word is a basic element of language that carries an objective or practical meaning, can be used on its own, and is uninterruptible. Despite the fact that language speakers often have an intuitive grasp of what a word is, there is no consen ...
headings.
In 2013,
Google
Google LLC () is an American Multinational corporation, multinational technology company focusing on Search Engine, search engine technology, online advertising, cloud computing, software, computer software, quantum computing, e-commerce, ar ...
released a
freely-licensed font called
Carlito, which is
metric-compatible to Calibri, as part of
ChromeOS. Carlito's metric-compatibility ensures ChromeOS users can correctly display and print a document designed in Calibri without disrupting its layout. Carlito’s glyph shapes are based on the prior open-source typeface
Lato.
On April 28, 2021, it was announced that Microsoft would be replacing Calibri with a new default font across Microsoft products.
Awards
Calibri won the TDC2 2005 award from the
Type Directors Club under the Type System category. The Arabic typeface of Calibri won the 2nd Award of GRANSHAN 2016.
In crime and politics
Because of Calibri's position as the default font in Office, many cases have been reported in which documents were shown to be forged thanks to a purported creation date before Calibri was available to the general public.
In 2017, the font came to public attention as evidence in the Pakistani government-related
"Panama Papers" case (also known as Fontgate),
in which a document provided by
Maryam Nawaz (daughter of ex PM Nawaz Sharif) was supposedly signed in February 2006 was found to be typed up in Calibri.
De Groot said that there was "really zero chance" that the document was genuine.
References
External links
*
{{Microsoft Windows Typefaces
Typefaces and fonts introduced in 2007
Microsoft typefaces
Humanist sans-serif typefaces
Windows Vista typefaces
IPA typefaces
Typefaces with text figures
Digital typefaces
Typefaces designed by Luc(as) de Groot
ClearType Font Collection