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The number 605 in Khmer numerals, from the Sambor inscriptions in 683 AD. The earliest known material use of zero as a decimal figure.[1]
This article contains Khmer script. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Khmer script.
This article contains IPA phonetic symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Unicode characters.

Khmer numerals are characters used for writing numbers for several languages in Cambodia, most notably Cambodia's official language, Khmer. They date back to at least the oldest known epigraphical inscription of the Khmer numerals in 604 AD, found on a stele in Prasat Bayang, Cambodia, located not far from Angkor Borei.[2][3]



Numeral systems by culture
Hindu-Arabic numerals
Eastern Arabic
Indian family
Western Arabic
East Asian numerals
Counting rods
Alphabetic numerals
Greek (Ionian)
Other systems
List of numeral system topics
Positional systems by base
Decimal (10)
1, 2, 3, 4, 5, 8, 12, 16, 20, 60 more…
The Khmer numerals depicted in four different typographical variants.

Having been derived from the Hindu numerals, modern Khmer numerals also represent a decimal positional notation system. It is the script with the first extant material evidence of zero as a numerical figure, dating its use back to the seventh century, two centuries before its certain use in India.[2][4] However, Old Khmer, or Angkorian Khmer, also possessed separate symbols for the numbers 10, 20, and 100. Each multiple of 20 or 100 would require an additional stroke over the character, so the number 47 was constructed using the 20 symbol with an additional upper stroke, followed by the symbol for number 7.[5] This inconsistency with its decimal system suggests that spoken Angkorian Khmer used a vigesimal system.

As both the Thai alphabet and Lao alphabet are derived from Old Khmer[6], their modern forms still bear many resemblances to the latter, demonstrated in the table below:

Value Khmer Thai Lao

Modern Khmer Numbers

The spoken names of modern Khmer numbers represent a biquinary system, with both base 5 and base 10 in use. For example, 6 (ប្រាំមួយ) is formed from 5 (ប្រាំ) plus 1 (មួយ).


Numbers from 0-5

For the most part, the etymology of the Khmer numbers from 1 to 5 are derived directly from the (Nuclear) Mon-Khmer language, with the exception of the number 0, which is borrowed from the Sanskrit word śūnya.

Value Khmer Word Form IPA UNGEGN ALA-LC Notes
0 សូន្យ soun sony sūny From Sanskrit śūnya
1 មួយ muəj muŏy muay Before a classifier, /muəj/ is reduced to /mə/ in regular speech.[7]
2 ពីរ piː (pɨl) pir bir Also /pir/
3 បី ɓəj bei pi
4 បួន ɓuən buŏn puan
5 ប្រាំ pram prăm prâṃ
  • Some authors may alternatively mark [ɓiː] as the pronunciation for the word two, and either [bəj] or [bei] for the word three.
  • In neighbouring Thailand the number three is thought to bring good luck.[8] However, in Cambodia, taking a picture with three people in it is considered bad luck, as it is believed that the person situated in the middle will die an early death.[9][10]
  • Note: As the UNGEGN romanization system is based on the 1972 BGN/PCGN system with little to no difference in spelling, the former will be used alongside the ALA-LC romanization system throughout this article.

Numbers from 6-20

As mentioned above, the numbers from 6 to 9 may be constructed by adding any number between 1 to 4 to the base number 5 (ប្រាំ), so that 7 is literally constructed as 5 plus 2. Beyond that, Khmer uses a decimal base, so that 14 is constructed as 10 plus 4, rather than 2 times 5 plus 4; and 16 is constructed as 10+5+1.

Colloquially, compound numbers from eleven to nineteen may be formed using the word ដណ្ដប់ [dɔnɗɑp] preceded by any number from one to nine, so that 15 is constructed as ប្រាំដណ្ដប់ [pram dɔnɗɑp], instead of the standard ដប់ប្រាំ [ɗɑp pram].[11]

Value Khmer Word Form IPA UNGEGN ALA-LC Notes
6 ប្រាំមួយ pram muəj prăm muŏy prâṃ muay
7 ប្រាំពីរ pram piː (pram pɨl) prăm pir prâṃ bir
8 ប្រាំបី pram ɓəj prăm bey prâṃ pi
9 ប្រាំបួន pram ɓuən prăm buŏn prâṃ puan
10 ១០ ដប់ ɗɑp dáb ṭáp Old Chinese *di̯əp.[12]
11 ១១ ដប់មួយ ɗɑp muəj dáb muŏy ṭáp muay Colloquially មួយដណ្ដប់ [muəj dɔnɗɑp].
20 ២០ ម្ភៃ mpʰej (məpʰɨj, mpʰɨj) mphey mbhae Contraction of /muəj/ + /pʰej/ (i.e. one + twenty)
  • In constructions from 6-9 that use 5 as a base, /pram/ may alternatively be pronounced [pəm]; giving [pəm muːəj], [pəm piː], [pəm ɓəj], and [pəm ɓuːən]. This is especially true in dialects which elide /r/, but not necessarily restricted to them, as the pattern also follows Khmer's minor syllable pattern.

Numbers from 30-90

The numbers from thirty to ninety in Khmer bear many resemblances to both the modern Thai and Cantonese numbers. It is likely that Khmer has borrowed them from the Thai language, as the numbers are both non-productive in Khmer (i.e. their use is restricted and cannot be used outside 30 to 90) and bear a near one-to-one phonological correspondence as can be observed in the language comparisons table below.

Informally, a speaker may choose to omit the final [səp] and the number is still understood. For example, it is possible to say [pɐət muəj] (ប៉ែតមួយ) instead of the full [pɐət səp muəj] (ប៉ែតសិបមួយ).

Value Khmer Word Form IPA UNGEGN ALA-LC Notes
30 ៣០ សាមសិប saːm səp sam sĕb sām sip
40 ៤០ សែសិប sɐe səp sê sĕb sai sip
50 ៥០ ហាសិប haː səp ha sĕb hā sip
60 ៦០ ហុកសិប hok səp hŏk sĕb huk sip
70 ៧០ ចិតសិប cət səp chĕt sĕb cit sip
80 ៨០ ប៉ែតសិប pɐət səp pêt sĕb p″ait sip
90 ៩០ កៅសិប kaw səp kau sĕb kau sip

Language Comparisons:

Value Khmer Thai Archaic Thai Lao Cantonese Teochew Min Nan Mandarin
3 ‒ *saːm sam sǎam sãam saam1 1 sa1 (sam1) sān
4 ‒ *sɐe si sài sii sei3 si3 si3
5 ‒ *haː ha ngùa hàa ng5 ŋou6 go2
6 ‒ *hok hok lòk hók luk6 lak8 lak2 (liok8) liù
7 ‒ *cət chet jèd jét cat1 tsʰik4 chit2
8 ‒ *pɐət paet pàed pàet baat3 poiʔ4 bpui2 (pat4)
9 ‒ *kaw kao jao kâo gau2 kao2 kau4 jiǔ
10 ‒ *səp sip jǒng síp sap6 tsap8 tzhap2 shí
  • Words in parenthesis indicate literary pronunciations, while words preceded with an asterisk mark are non-productive (i.e. only occur in specific constructions, but cannot be decomposed to form basic numbers).

Numbers from 100-10 000 000

The standard Khmer numbers starting from one hundred are as follows:

Value Khmer Word Form IPA UNGEGN ALA-LC Notes[13]
100 ១០០ មួយរយ muəj rɔj (rɔj, mərɔj) muŏy rôy muay ray May possibly be borrowed from Thai ร้อย roi.
1 000 ១០០០ មួយពាន់ muəj piːən muŏy peăn muay bân From Thai พัน phan.
10 000 ១០០០០ មួយម៉ឺន muəj məɨn muŏy mœŭn muay muȳn From Thai หมื่น muen.
100 000 ១០០០០០ មួយសែន muəj saːen muŏy sên muay s″ain From Thai แสน saen.
1 000 000 ១០០០០០០ មួយលាន muəj liːən muŏy leăn muay lân From Thai ล้าน lan.
10 000 000 ១០០០០០០០ មួយកោដិ muəj kaot muŏy kaôdĕ muay koṭi From Sanskrit and Pali koṭi.

Although [muəj kaot] មួយកោដិ is most commonly used to mean ten million, in some areas this is also colloquially used to refer to one billion (which is more properly [muəj rɔj kaot] មួយរយកោដិ). In order to avoid confusion, sometimes [muəj ɗɑp liːən] មួយដប់លាន is used to mean ten million, along with [muəj rɔj liːən] មួយរយលាន for one hundred million, and [muəj piːən liːən] មួយពាន់លាន ("one thousand million") to mean one billion.[14]

Different Cambodian dialects may also employ different base number constructions to form greater numbers above one thousand. A few of the such can be observed in the following table:

Value Khmer Word Form[14][15] IPA UNGEGN ALA-LC Notes
10 000 ១០០០០ (មួយ)ដប់ពាន់ (muəj) ɗɑp piːən (muŏy) dáb peăn (muay) ṭáp bân Literally "(one) ten thousand"
100 000 ១០០០០០ (មួយ)ដប់ម៉ឺន (muəj) ɗɑp məɨn (muŏy) dáb mœŭn (muay) ṭáp muȳn Literally "(one) ten ten-thousand"
100 000 ១០០០០០ មួយរយពាន់ muəj rɔj piːən muŏy rôy peăn muay ray bân Literally "one hundred thousand"
1 000 000 ១០០០០០០ មួយរយម៉ឺន muəj rɔj məɨn muŏy rôy mœŭn muay ray muȳn Literally "one hundred ten-thousand"
10 000 000 ១០០០០០០០ (មួយ)ដប់លាន (muəj) ɗɑp liːən (muŏy) dáb leăn (muay) ṭáp lân Literally "(one) ten million"
100 000 000 ១០០០០០០០០ មួយរយលាន muəj rɔj liːən muŏy rôy leăn muay ray lân Literally "one hundred million"
1 000 000 000 ១០០០០០០០០០ មួយពាន់លាន muəj piːən liːən muŏy peăn leăn muay ray bân Literally "one thousand million"

Counting Fruits

Reminiscent of the standard 20-base Angkorian Khmer numbers, the modern Khmer language also possesses separate words used to count fruits, not unlike how English uses words such as a "dozen" for counting items such as eggs.[16]

Value Khmer Word form IPA UNGEGN ALA-LC Notes
4 ដំប dɑmbɑː dâmbâ ṭaṃpa Also written ដំបរ (dâmbâr or ṭaṃpar)
40 ៤០ ផ្លូន ploːn phlon phlūn From (pre-)Angkorian *plon "40"
80 ៨០ ពីរផ្លូន piː~pɨl ploːn pir phlon bir phlūn Literally "two forty"
400 ៤០០ ស្លឹក slək slœ̆k slẏk From (pre-)Angkorian *slik "400"

Sanskrit and Pali influence

As a result of prolonged literary influence from both the Sanskrit and Pali languages, Khmer may occasionally use borrowed words for counting. Generally speaking, asides a few exceptions such as the numbers for 0 and 100 for which the Khmer language has no equivalent, they are more often restricted to literary, religious, and historical texts than they are used in day to day conversations. One reason for the decline of these numbers is that a Khmer nationalism movement, which emerged in the 1960s, attempted to remove all words of Sanskrit and Pali origin. The Khmer Rouge also attempted to cleanse the language by removing all words which were considered politically incorrect.[17]

Value Khmer Word form IPA UNGEGN ALA-LC Notes
12 ១២ ទ្វាទស tvietʊəh
tvéatôs(â) dvādas(a) Sanskrit, Pali dvādasa
13 or 30 ១៣ or ៣០ ត្រីទស trəj tʊəh trei tôs trǐ das Sanskrit, Pali trayodasa
28 ២៨ អស្តាពីស ʔahsdaː piː sɑː ’astéa pi sâ qastā bǐ sa Sanskrit (8, aṣṭá-) (20, vimsati)

Ordinal Numbers

Like Thai (ที่ thi) and Vietnamese (thứ), Khmer ordinal numbers are also formed by placing ទី [tiː] in front of a cardinal number.[18]

Meaning Khmer IPA UNGEGN ALA-LC Notes
First ទីមួយ tiː muəj ti muŏy dǐ muay
Second ទីពីរ tiː piː~pɨl ti pir dǐ bir
Third ទីបី tiː ɓəj ti bei dǐ pi

Angkorian Numbers

It is generally assumed that the Angkorian and pre-Angkorian numbers also represented a dual base (quinquavigesimal) system, with both base 5 and base 20 in use. Unlike modern Khmer, the decimal system was highly limited, with both the numbers for ten and one hundred being borrowed from the Chinese and Sanskrit languages respectively. Angkorian Khmer also used Sanskrit numbers for recording dates, sometimes mixing them with Khmer originals, a practice which has persisted until the last century.[19]

The numbers for twenty, forty, and four hundred may be followed by multiplying numbers, with additional digits added on at the end, so that 27 is constructed as twenty-one-seven, or 20×1+7.

Value Khmer Orthography[5] Notes
1 mvay
2 vyar
3 pi
4 pvan
5 pram (7 : pramvyar or pramvyal)
10 ១០ tap Old Chinese *di̯əp.[12]
20 ២០ bhai
40 ៤០ plon
80 ៨០ bhai pvan Literally "four twenty"
100 ១០០ çata Sanskrit (100, sata).
400 ៤០០ slik

Proto-Khmer Numbers

Proto-Khmer is the hypothetical ancestor of the modern Khmer language bearing various reflexes of the proposed Mon-Khmer language. By comparing both modern Khmer and Angkorian Khmer numbers to those of other Eastern Mon-Khmer (or Khmero-Vietic) languages such as Pearic, Proto-Viet-Muong, Katuic, and Bahnaric; it is possible to establish the following reconstructions for Proto-Khmer.[20]

Numbers from 5-10

Contrary to later forms of the Khmer numbers, Proto-Khmer possessed a single decimal number system. The numbers from one to five correspond to both the modern Khmer language and the proposed Mon-Khmer language, while the numbers from six to nine do not possess any modern remnants, with the number ten *kraaj (or *kraay) corresponding to the modern number for one hundred. It is likely that the initial *k, found in the numbers from six to ten, is a prefix.[20]

Value Khmer Reconstruction[21][22] Notes
5 *pram
6 *krɔɔŋ
7 *knuul
8 *ktii Same root as the word hand, *tii.
9 *ksaar
10 ១០ *kraaj Corresponds to present-day /rɔj/ (one hundred).


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  2. Huffman, Franklin E.; Charan Promchan and Chhom-Rak Thong Lambert (2008). "Huffman, Modern Spoken Cambodian". Retrieved 2008-03-25. 
  3. Unknown (2005). Khmer Phrase Book: Everyday Phrases Mini-Dictionary. 
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  5. Southeast Asia. Lonely Planet. 2006. ISBN 1741046327. 
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  7. "SEAlang Library Khmer Lexicography". Retrieved 2008-12-07. 
  8. "Veda:Sanskrit Numbers". Retrieved 2008-12-10. 
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  2. ^ a b Eugene Smith, David; Louis Charles Karpinski (2004). The Hindu-Arabic Numerals. Courier Dover Publications. p. 39. ISBN 0486439135. 
  3. ^ Kumar Sharan, Mahesh (2003). Studies In Sanskrit Inscriptions Of Ancient Cambodia. Abhinav Publications. p. 293. ISBN 8170170060. 
  4. ^ Diller, Anthony (1996). New zeroes and Old Khmer. Australian National University. 
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  12. ^ a b Gorgoniev, Yu A. (1961). Khmer language. p. 72. 
  13. ^ Jacob (1993). Notes on the numerals and numeral coefficients in Old, Middle, and Modern Khmer. p. 28. 
  14. ^ a b "Khmer Numeral System". 2005-06-19. Retrieved 2008-12-18. 
  15. ^ "Spoken Khmer Number". 2003. Retrieved 2008-12-29. 
  16. ^ Thomas, David D. (1971). Chrau Grammar (Oceanic Linguistics Special Publications). No.7. University of Hawai'i Press. 
  17. ^ "Khmer: Introduction". National Virtual Translation Center. 2007. Retrieved 2008-12-18. 
  18. ^ "Khmer Cardinal Number". 2003. Retrieved 2008-12-18. 
  19. ^ Jacob, Judith M.. "Mon-Khmer Studies VI: Sanskrit Loanwords in Pre-Angkorian Khmer". School of Oriental and African Studies, University of London. Retrieved 2008-12-10. 
  20. ^ a b Gvozdanović, Jadranka (1999). Numeral Types and Changes Worldwide. Walter de Gruyter. pp. 263–265. ISBN 3110161133. 
  21. ^ Jenner, Phillip N. (1976). "Mon-Khmer Studies 5". p. 40. 
  22. ^ Fisiak, Jacek (1997). Linguistic Reconstruction. Walter de Gruyter. p. 275. ISBN 3110149052. 


Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary



Khmer numerals

  1. Plural form of Khmer numeral.


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