Dr Andrew Scott G7VAV
MBCS, MIET, Member ACM, Member IEEE
My photo
Senior Lecturer
School of Computing
    and Communications

D35 InfoLab21
Lancaster University
Lancaster, LA1 4WA
United Kingdom
 
October 2025
Mo Tu We Th Fr Sa Su
29 30 1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31 1 2
3 4 5 6 7 8 9

KOI8-R

Section: Linux Programmer's Manual (7)
Updated: 2010-10-24
Index Return to Main Contents
 

NAME

koi8-r - Russian character set encoded in octal, decimal, and hexadecimal  

DESCRIPTION

KOI8-R is the character set of choice for encoding Russian texts for many UNIX-like operation systems. KOI8-R is a successor for KOI-8, a de-facto standard for Internet Mail, News, WWW and other interactive services at least all over the ex-SU territory.

KOI8-R is defined by RFC 1489 (Registration of a Cyrillic Character Set).  

NOTES

KOI8-R was designed for mixed Russian/English texts and covers only Russian Cyrillic characters, so if you're looking for Ukrainian, Byelorussian, etc. Cyrillic characters, try ISO-IR-111, or KOI8-U (Ukrainian Character Set), or KOI8-C (for ancient Russian texts) instead, which are identical to KOI8-R in the Russian Cyrillic letters area.

A more complete set of Cyrillic characters is also defined by the ISO-8859-5 character set.  

KOI8-R Characters

The following table displays the characters in KOI8-R, which are printable and unlisted in the ascii(7) manual page.
OctDecHexCharDescription
20012880€BOX DRAWINGS LIGHT HORIZONTAL
20112981BOX DRAWINGS LIGHT VERTICAL
20213082‚BOX DRAWINGS LIGHT DOWN AND RIGHT
20313183ƒBOX DRAWINGS LIGHT DOWN AND LEFT
20413284„BOX DRAWINGS LIGHT UP AND RIGHT
20513385…BOX DRAWINGS LIGHT UP AND LEFT
20613486†BOX DRAWINGS LIGHT VERTICAL AND RIGHT
20713587‡BOX DRAWINGS LIGHT VERTICAL AND LEFT
21013688ˆBOX DRAWINGS LIGHT DOWN AND HORIZONTAL
21113789‰BOX DRAWINGS LIGHT UP AND HORIZONTAL
2121388AŠBOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
2131398B‹UPPER HALF BLOCK
2141408CŒLOWER HALF BLOCK
2151418DFULL BLOCK
2161428EŽLEFT HALF BLOCK
2171438FRIGHT HALF BLOCK
22014490LIGHT SHADE
22114591‘MEDIUM SHADE
22214692’DARK SHADE
22314793“TOP HALF INTEGRAL
22414894”BLACK SQUARE
22514995•BULLET OPERATOR
22615096–SQUARE ROOT
22715197—ALMOST EQUAL TO
23015298˜LESS-THAN OR EQUAL TO
23115399™GREATER-THAN OR EQUAL TO
2321549AšNO-BREAK SPACE
2331559B›BOTTOM HALF INTEGRAL
2341569CœDEGREE SIGN
2351579DSUPERSCRIPT TWO
2361589EžMIDDLE DOT
2371599FŸDIVISION SIGN
240160A0 BOX DRAWINGS DOUBLE HORIZONTAL
241161A1¡BOX DRAWINGS DOUBLE VERTICAL
242162A2¢BOX DRAWINGS DOWN SINGLE AND RIGHT DOUBLE
243163A3£CYRILLIC SMALL LETTER IO
244164A4¤BOX DRAWINGS DOWN DOUBLE AND RIGHT SINGLE
245165A5¥BOX DRAWINGS DOUBLE DOWN AND RIGHT
246166A6¦BOX DRAWINGS DOWN SINGLE AND LEFT DOUBLE
247167A7§BOX DRAWINGS DOWN DOUBLE AND LEFT SINGLE
250168A8¨BOX DRAWINGS DOUBLE DOWN AND LEFT
251169A9©BOX DRAWINGS UP SINGLE AND RIGHT DOUBLE
252170AAªBOX DRAWINGS UP DOUBLE AND RIGHT SINGLE
253171AB«BOX DRAWINGS DOUBLE UP AND RIGHT
254172AC¬BOX DRAWINGS UP SINGLE AND LEFT DOUBLE
255173AD­BOX DRAWINGS UP DOUBLE AND LEFT SINGLE
256174AE®BOX DRAWINGS DOUBLE UP AND LEFT
257175AF¯BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE
260176B0°BOX DRAWINGS VERTICAL DOUBLE AND RIGHT SINGLE
261177B1±BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
262178B2²BOX DRAWINGS VERTICAL SINGLE AND LEFT DOUBLE
263179B3³CYRILLIC CAPITAL LETTER IO
264180B4´BOX DRAWINGS VERTICAL DOUBLE AND LEFT SINGLE
265181B5µBOX DRAWINGS DOUBLE VERTICAL AND LEFT
266182B6BOX DRAWINGS DOWN SINGLE AND HORIZONTAL DOUBLE
267183B7·BOX DRAWINGS DOWN DOUBLE AND HORIZONTAL SINGLE
270184B8¸BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
271185B9¹BOX DRAWINGS UP SINGLE AND HORIZONTAL DOUBLE
272186BAºBOX DRAWINGS UP DOUBLE AND HORIZONTAL SINGLE
273187BB»BOX DRAWINGS DOUBLE UP AND HORIZONTAL
274188BC¼BOX DRAWINGS VERTICAL SINGLE AND HORIZONTAL DOUBLE
275189BD½BOX DRAWINGS VERTICAL DOUBLE AND HORIZONTAL SINGLE
276190BE¾BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
277191BF¿COPYRIGHT SIGN
300192C0ÀCYRILLIC SMALL LETTER YU
301193C1ÁCYRILLIC SMALL LETTER A
302194C2ÂCYRILLIC SMALL LETTER BE
303195C3ÃCYRILLIC SMALL LETTER TSE
304196C4ÄCYRILLIC SMALL LETTER DE
305197C5ÅCYRILLIC SMALL LETTER IE
306198C6ÆCYRILLIC SMALL LETTER EF
307199C7ÇCYRILLIC SMALL LETTER GHE
310200C8ÈCYRILLIC SMALL LETTER HA
311201C9ÉCYRILLIC SMALL LETTER I
312202CAÊCYRILLIC SMALL LETTER SHORT I
313203CBËCYRILLIC SMALL LETTER KA
314204CCÌCYRILLIC SMALL LETTER EL
315205CDÍCYRILLIC SMALL LETTER EM
316206CEÎCYRILLIC SMALL LETTER EN
317207CFÏCYRILLIC SMALL LETTER O
320208D0ÐCYRILLIC SMALL LETTER PE
321209D1ÑCYRILLIC SMALL LETTER YA
322210D2ÒCYRILLIC SMALL LETTER ER
323211D3ÓCYRILLIC SMALL LETTER ES
324212D4ÔCYRILLIC SMALL LETTER TE
325213D5ÕCYRILLIC SMALL LETTER U
326214D6ÖCYRILLIC SMALL LETTER ZHE
327215D7×CYRILLIC SMALL LETTER VE
330216D8ØCYRILLIC SMALL LETTER SOFT SIGN
331217D9ÙCYRILLIC SMALL LETTER YERU
332218DAÚCYRILLIC SMALL LETTER ZE
333219DBÛCYRILLIC SMALL LETTER SHA
334220DCÜCYRILLIC SMALL LETTER E
335221DDÝCYRILLIC SMALL LETTER SHCHA
336222DEÞCYRILLIC SMALL LETTER CHE
337223DFßCYRILLIC SMALL LETTER HARD SIGN
340224E0àCYRILLIC CAPITAL LETTER YU
341225E1áCYRILLIC CAPITAL LETTER A
342226E2âCYRILLIC CAPITAL LETTER BE
343227E3ãCYRILLIC CAPITAL LETTER TSE
344228E4äCYRILLIC CAPITAL LETTER DE
345229E5åCYRILLIC CAPITAL LETTER IE
346230E6æCYRILLIC CAPITAL LETTER EF
347231E7çCYRILLIC CAPITAL LETTER GHE
350232E8èCYRILLIC CAPITAL LETTER HA
351233E9éCYRILLIC CAPITAL LETTER I
352234EAêCYRILLIC CAPITAL LETTER SHORT I
353235EBëCYRILLIC CAPITAL LETTER KA
354236ECìCYRILLIC CAPITAL LETTER EL
355237EDíCYRILLIC CAPITAL LETTER EM
356238EEîCYRILLIC CAPITAL LETTER EN
357239EFïCYRILLIC CAPITAL LETTER O
360240F0ðCYRILLIC CAPITAL LETTER PE
361241F1ñCYRILLIC CAPITAL LETTER YA
362242F2òCYRILLIC CAPITAL LETTER ER
363243F3óCYRILLIC CAPITAL LETTER ES
364244F4ôCYRILLIC CAPITAL LETTER TE
365245F5õCYRILLIC CAPITAL LETTER U
366246F6öCYRILLIC CAPITAL LETTER ZHE
367247F7÷CYRILLIC CAPITAL LETTER VE
370248F8øCYRILLIC CAPITAL LETTER SOFT SIGN
371249F9ùCYRILLIC CAPITAL LETTER YERU
372250FAúCYRILLIC CAPITAL LETTER ZE
373251FBûCYRILLIC CAPITAL LETTER SHA
374252FCüCYRILLIC CAPITAL LETTER E
375253FDýCYRILLIC CAPITAL LETTER SHCHA
376254FEþCYRILLIC CAPITAL LETTER CHE
377255FFÿCYRILLIC CAPITAL LETTER HARD SIGN

 

SEE ALSO

ascii(7), iso-8859-5(7), koi8-u(7), RFC 1489, http://koi8.pp.ru/  

COLOPHON

This page is part of release 3.35 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://man7.org/linux/man-pages/.

 

Index

NAME
DESCRIPTION
NOTES
KOI8-R Characters
SEE ALSO
COLOPHON
for client (none)
© Andrew Scott 2006 - 2025,
All Rights Reserved
http://www.andrew-scott.uk/
Andrew Scott
http://www.andrew-scott.co.uk/