The Khmer numerals depicted in four different typographical variants comparing to Arabic numerals (blue).

Khmer numerals ០ ១ ២ ៣ ៤ ៥ ៦ ៧ ៨ ៩ are the numerals used in the script for the Khmer language. They have been in use since at least the early 7th century.

Numerals

The number 605 in Khmer numerals, from the Sambor inscriptions in 683 AD. The earliest known material use of zero as a decimal figure.

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. 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. This inconsistency with its decimal system suggests that spoken Angkorian Khmer used a vigesimal system.

As both Thai and Lao scripts are derived from Old Khmer, their modern forms still bear many resemblances to the latter, demonstrated in the following table:

ValueKhmerThaiLao
0
1
2
3
4
5
6
7
8
9

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).

A chart in Khmer with Khmer numerals and numbers
Khmer numbers

Numbers from 0 to 5

With the exception of the number 0, which stems from Sanskrit, the etymology of the Khmer numbers from 1 to 5 is of proto-Austroasiatic origin.

ValueKhmerWord FormIPAUNGEGNGDALA-LCNotes
0សូន្យ[soːn]sonysounysūnyFrom Sanskrit śūnya
1មួយ[muəj]muŏymuoymuayBefore a classifier, [muəj] is reduced to [mə] in regular speech.
2ពីរ[piː], [pɨl]pirpirbīr
3បី[ɓej]beibei
4បួន[ɓuən]buŏnbuonpuan
5ប្រាំ[pram]brămbramprāṃ
  • For details of the various alternative romanization systems, see Romanization of Khmer.
  • Some authors may alternatively mark [ɓiː] as the pronunciation for the word two, and either [ɓəj] or [ɓei] for the word three.
  • In neighbouring Thailand the number three is thought to bring good luck. 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.

Comparison to other Austroasiatic languages 1-5

Whilst Vietnamese vocabulary is very Sinicized, the numbers 1-5 retain proto-Austroasiatic origins.

ValueKhmerWord FormIPAUNGEGNVietnameseMuong languageMon languageBru languageKhmu language
1មួយ[muəj]muŏymộtmốchmo̤amui/mò:j/
2ពីរ[piː], [pɨl]pirhaihalɓabar/pà:r/
3បី[ɓəj]beibapapɔeʔpei/péɂ/
4បួន[ɓuən]buŏnbốnpổnpɔnpon/sí:/
5ប្រាំ[pram]brămnămđằmpəsɔnshăng/há:/

Numbers from 6 to 20

The numbers from 6 to 9 may be constructed by adding any number between 1 and 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 [pramdɔnɗɑp], instead of the standard ដប់ប្រាំ [ɗɑppram].

ValueKhmerWord FormIPAUNGEGNGDALA-LCNotes
6ប្រាំមួយ[prammuəj]brămmuŏybrammuoyprāṃmuay
7ប្រាំពីរ[prampiː], [prampɨl]brămpirbrampirprāṃbīr
8ប្រាំបី[pramɓəj]brămbeibrambeiprāṃpī
9ប្រាំបួន[pramɓuən]brămbuŏnbrambuonprāṃpuan
10១០ដប់[ɗɑp]dábdabṭápFrom an archaic Chinese form *[di̯əp].
11១១ដប់មួយ[ɗɑpmuəj]dábmuŏydabmuoyṭápmuayColloquially មួយដណ្ដប់ muŏydândáb [muəjdɔnɗɑp].
20២០ម្ភៃ[mpʰej], [məpʰɨj], [mpʰɨj]mpheympheymbhaiContraction of [muəj] + [pʰəj] (i.e. one + twenty)
  • In constructions from 6 to 9 that use 5 as a base, [pram] may alternatively be pronounced [pəm]; giving [pəmmuəj], [pəmpiː], [pəmɓəj], and [pəmɓuːən]. 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 to 90

The modern Khmer numbers from 30 to 90 are as follows:

ValueKhmerWord FormIPAUNGEGNGDALA-LCNotes
30៣០សាមសិប[saːm.səp]samsĕbsamsebsāmsipFrom Thai สามสิบ sam sip
40៤០សែសិប[sae.səp]sêsĕbsaesebsaesipFrom Thai, สี่สิบ si sip
50៥០ហាសិប[haːsəp]hasĕbhasebhāsipFrom Thai, ห้าสิบ hasip
60៦០ហុកសិប[hok.səp]hŏksĕbhoksebhuksipFrom Thai, หกสิบ hoksip
70៧០ចិតសិប[cət.səp]chĕtsĕbchetsebcitsipFrom Thai, เจ็ดสิบ chetsip
80៨០ប៉ែតសិប[paet.səp]pêtsĕbpaetsebp″aetsipFrom Thai, แปดสิบ paetsip
90៩០កៅសិប[kaw.səp]kausĕbkausebkausipFrom Thai, เก้าสิบ kaosip
  • The word សិប [səp], which appears in each of these numbers, can be dropped in informal or colloquial speech. For example, the number 81 can be expressed as ប៉ែតមួយ [paet.muəj] instead of the full ប៉ែតសិបមួយ [paet.səp.muəj].

Historically speaking, Khmer borrowed the numbers from 30 to 90 from a southern Middle Chinese variety by way of a neighboring Tai language, most likely Thai. This is evidenced by the fact that the numbers in Khmer most closely resemble those of Thai, having already went through Tai-Kadai sound changes rather than being directly borrowed from said Chinese variety, as well as the fact that the numbers cannot be deconstructed in Khmer. For instance, សែ [sae] is not used on its own to mean "four" in Khmer and សិប [səp] is not used on its own to mean "ten", while they are in Thai (see Thai numerals). The table below shows how the words in Khmer compare to other nearby Tai and Sinitic languages.

Language comparison
ValueKhmerSouthwestern TaiNorthern TaiSinitic
ThaiArchaic ThaiLaoS. ZhuangNanningCantoneseTeochewHokkienMandarin
3 ‒*saːmsamsǎamsãamɬaːm1ɬam41saam1sã1sa1 (sam1)sān
4 ‒*sɐesisàisiiɬi5ɬi55sei3si3si3 (su3)
5 ‒*haːhangùahàaha3ŋ̩13ng5ŋou6go2 (ngo2)
6 ‒*hokhoklòkhókhuk7løk24luk6lak8lak2 (liok8)liù
7 ‒*cətchetjèdjéttɕit7tsʰɐt33cat1tsʰik4chit2
8 ‒*pɐətpaetpàedpàetpet7pat33baat3poiʔ4pueh4 (pat4)
9 ‒*kawkaojaokâokau3kou33gau2kao2kau4 (kiu2)jiǔ
10 ‒*səpsipjǒngsípɬip7ɕɐp22sap6tsap8tzhap2 (sip8)shí
  • Words in parentheses indicate literary pronunciations, while words preceded by an asterisk only occur in specific constructions and are not used for basic numbers from 3 to 10.

Prior to using a decimal system and adopting these words, Khmer used a base 20 system, so that numbers greater than 20 were formed by multiplying or adding on to the cardinal number for twenty. Under this system, 30 would've been constructed as (20 × 1) + 10 "twenty-one ten" and 80 was constructed as 4 × 20 "four twenties / four scores". See the section Angkorian numbers for details.

Numbers from 100 to 10,000,000

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

ValueKhmerWord FormIPAUNGEGNGDALA-LCNotes
100១០០មួយរយ[muəj.rɔːj] ([rɔːj], [mə.rɔːj])muŏy rôymuoy roymuay rayaFrom Thai, ร้อย roi.
1,000១,០០០មួយពាន់[muəj.pŏən]muŏy poănmuoy poanmuaya bânFrom Thai, พัน phan.
10,000១០,០០០មួយម៉ឺន[muəj.məɨn]muŏy mœnmuoy mueunmuaya mȳnaFrom Thai, หมื่น muen.
100,000១០០,០០០មួយសែន[muəj.saen]muŏy sênmuoy saenmuaya saenaFrom Thai, แสน saen.
1,000,000១,០០០,០០០មួយលាន[muəj.lien]muŏy léanmuoy leanmuaya lânaFrom Thai, ล้าน lan.
10,000,000១០,០០០,០០០មួយកោដិ[muəj.kaot]muŏy kaôdĕmuoy kaotmuaya koṭiFrom Sanskrit and Pali koṭi.

Although មួយកោដិ [muəjkaot] 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 មួយរយកោដិ [muəjrɔjkaot]). In order to avoid confusion, sometimes ដប់លាន [ɗɑp.liən] is used to mean ten million, along with មួយរយលាន [muəj.rɔj.liən] for one hundred million, and មួយពាន់លាន [muəj.pŏən.liən] ("one thousand million") to mean one billion.

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:

ValueKhmerWord FormIPAUNGEGNGDALA-LCNotes
10,000១០,០០០ដប់ពាន់[ɗɑppŏən]dáb poăndab poanṭáp bânlit. "ten thousand"
100,000១០០,០០០ដប់ម៉ឺន[ɗɑpməɨn]dáb mœŭndab mueunṭáp mȳnalit. "ten ten-thousand"
100,000១០០,០០០មួយរយពាន់[muəjrɔjpŏən]muŏy rôy poănmuoy roy poanmuaya raya bânlit. "one hundred thousand"
1,000,000១,០០០,០០០មួយរយម៉ឺន[muəjrɔjməɨn]muŏy rôy mœnmuoy roy mueunmuaya raya mȳnalit. "one hundred ten-thousand"
10,000,000១០,០០០,០០០ដប់លាន[ɗɑpliən]dáb léandab leanṭáp lānalit. "ten million"
100,000,000១០០,០០០,០០០មួយរយលាន[muəjrɔjliən]muŏy rôy léanmuoy roy leanmuaya raya lānalit. "one hundred million"
1,000,000,000១,០០០,០០០,០០០មួយពាន់លាន[muəjpŏənliən]muŏy poăn léanmuoy poan leanmuaya bân lānalit. "one thousand million"

Counting fruits

Reminiscent of the standard base 20 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.

ValueKhmerWord formIPAUNGEGNGDALA-LCNotes
4ដំប, ដំបរ[dɑmbɑː]dâmbâ, dâmbârdambaṭaṃpa
40៤០ផ្លូន[pʰloun]phlonphlounphlūnaFrom (pre-)Angkorian *plon "40"
80៨០ពីរផ្លូន[piːploun], [pɨlploun]pir phlonpi phlounbīra phlūnaLit. "two forty"
400៤០០ស្លឹកsləkslœ̆ksloekslẏkaFrom (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, aside from 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.

ValueKhmerWord formIPAUNGEGNGDALA-LCNotes
10១០ទស[tŭəh]tôstosdasaFrom Sanskrit and Pali, dasa
12១២ទ្វាទស[tviətŭəh], [tviətĕəsaʔ]tvéatôstveatos, tveateaksakdvādasaFrom Sanskrit and Pali dvādasa
13 or 30១៣ or ៣០ត្រីទស[trəjtŭəh]treitôstreitostrīdasaFrom Sanskrit and Pali, trayodasa
28២៨អស្តាពីស[ʔahsɗaːpiːsɑː]âsdapisâasdapisa‛astābīsaFrom Sanskrit (8, aṣṭá-) (20, vimsati)
100១០០សត[sataʔ]sâtâsaktaksataFrom Sanskrit, sata

Ordinal numbers

Khmer ordinal numbers are formed by placing the word ទី [tiː] in front of a cardinal number. This is similar to the use of ที่ thi in Thai, and thứ (次) in Vietnamese.

MeaningKhmerIPAUNGEGNGDALA-LCNotes
Firstទីមួយ[tiːmuəj]ti muŏyti muoydī muaya
Secondទីពីរ[tiːpiː], [tiːpɨl]ti pirti pidī bīra
Thirdទីបី[tiːɓəj]ti bĕiti beidī pī

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.

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.

ValueKhmerOrthographyNotes
1mvay
2vyar
3pi
4pvan
5pram(7: pramvyar or pramvyal)
10១០tapFrom an archaic Chinese form *di̯əp.
20២០bhai
40៤០plon
80៨០bhai pvanLiterally "four twenty"
100១០០çataSanskrit (100, sata).
400៤០០slik

Proto-Khmer numbers

Proto-Khmer is the hypothetical ancestor of the modern Khmer language bearing various reflexes of the proposed proto-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.

Numbers from 5 to 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.

ValueKhmerReconstructionNotes
5*pram
6*krɔɔŋ
7*knuul
8*ktiiSame root as the word hand, *tii.
9*ksaar
10១០*kraajCorresponds to present-day /rɔj/ (one hundred).

Notes

General

  1. David Smyth (1995). Colloquial Cambodian: A Complete Language Course. Routledge (UK). ISBN0-415-10006-2.
  2. Huffman, Franklin E.; Charan Promchan; Chhom-Rak Thong Lambert (2008). . Archived from on 2009-08-04.
  3. Unknown (2005). Khmer Phrase Book: Everyday Phrases Mini-Dictionary.
  4. Smyth, David; Tran Kien (1998). (2ed.). Tuttle Language Library/Charles E. Tuttle Company. ISBN0-8048-1954-8.
  5. Southeast Asia. Lonely Planet. 2006. ISBN1-74104-632-7.
  6. preahvihear (2008). . Archived from on 2009-08-04.
  7. .
  8. .

Specific