Measurements in ancient Tamil-speaking South India
were widely different from modern day metric and imperial systems.
These ancient measurement systems spanned systems of counting,
distances, volumes, time, weight as well as tools used to do so. While
India is one of the countries to use the metric system International System of Units
(Tamil Nadu state included), some of these older day measurement
systems, especially those of counting are used in the present day.
There are several similarities between the measurement system used in Tamil Nadu and that used by the Indus Valley civilisation.
Units of time in ancient Tamil history
- 12 (base 8) or 10 kuzhigaL = 1 miy = 66.6666 millisecond-the time taken by the young human eyes to flap once.
- 2 kaNNimaigaL (கண்ணிமைகள்) = 1 kainodi (கைநொடி) = 0.125 second
- 2 kainodi = 1 maatthirai (மாத்திரை) = 0.25 second
- 6 (base 8) or 6 miygaL = 1 siRRuzhi (nodi) சிற்றுழி (நொடி) = 0.40 second-the time taken for a bubble (created by blowing air through a bamboo tube into a vessel 1 saaN high, full of water) to travel a distance of one saaN (சாண்).
- 2 maatthiraigaL = 1 kuru (குறு) = 0.50 second
- 2 (base 8) or 2 nodigaL = 1 vinaadi வினாடி = 0.80 second-the time for the adult human heart to beat once
- 21⁄2 nodigaL = 2 kuru = 1 uyir உயிர் = 1 second
- 5 nodigaL = 2 uyir = 1 saNigam சாணிகம் = 1/2 aNu அணு = 2 seconds
- 12 (base 8) or 10 nodigaL = 1 aNu = 4 seconds
- 6 (base 8) or 6 aNukkaL = 12 saNigam = 1 thuLi துளி = 1 naazhigai-vinaadi நாழிகை வினாடி = 24 seconds
- 12 (base 8) or 10 thuLigaL = 1 kaNam கணம் = 4 minutes
- 6 (base 8) or 6 kaNangaL = 1 naazhigai= 24 minutes
- 12 (base 8) or 10 naazhigaigaL = 4 saamam சாமம் = 1 siRupozhuthu சிறுபொழுது = 240 minutes = 4 hours
- 6 (base 8) or 6 siRu-pozhuthugaL = 1 naaL நாள் (1 day) = 24 hours
- 7 naaTkaL = 1 kizhamai கிழமை (1 week)
- 15 naaTkaL = 1 azhuvam அழுவம் (1 fortnight)
- 29.5 naaTkaL = 1 thingaL திங்கள் (1 lunar month)
- 2 thingaL = 1 perum-pozhuthu பெரும்பொழுது (1 season)
- 6 perum-pozhuthugaL = 1 AaNdu (1 year)
- 64 aaNdugaL = 1 vattam வட்டம் (1 cycle)
- 4096 (=8^4) AaNdugaL = 1 Oozhi ஊழி (1 epoch)
Area Measurement
- 1 Marakkal vaedaipadu (seeds required for planting rice) = 8 cents
- 12.5 Marakkal vaedaipadu = 100 cents (one acre)
குறுணி = 8 cents
பதக்கு = 16 cents
முக்குறுணி = 24 cents
Area calculation and Measurement Chart .- 1 hectare = 2 acre 47 cent
- 1 hectare = 10,000 sq m
- 1 acre = 0.405 hectare
- 1 acre = 4046.82 sq m
- 1 acre = 43,560 sq ft
- 1 acre = 100 cent = 4840 sq gejam
- 1 cent = 435.6 sq ft
- 1 cent = 40.5 sq m
- 1 ground = 222.96 sq m = 5.5 cent
- 1 ground = 2400 sq ft
- 1 Veesam = 6*6 sq ft = 36 sq ft
- 1 Kuzhi = 4 Veesams
- 1 Kuzhi = 144 sq ft
- 1 Kuzhi = 0.331 cents
- 1 Kāni = 400 kuzhis
- 1 acre = 436 kuzhi
- 1 ankanam = 8 sq yd/72 sq ft
- 1 Mā = 100 kuzhi = 10000 sq ft (Not 10000 sq ft but 14400 sq ft When 1 Kuzhi = 144 sq ft)
- 1 Kāni = 4 Mā = 40000 sq ft (Not 40000 sq ft but 57600 sq ft)
- 1 kāni = 132 cents = 1.32 acre
- 1 acre = 75.625 kuzhi
- 1 Veļi = 7 kāni = 6.43 acres = 2.6 hectares (1 Veli = 20 Ma = 5 kani only not 7 kani)
- 1 dismil = 2.5 cent
- 1 furlong = 660 feet = 220 kejam
- 1 kilometre = 5 furlong
- 1 link / chain = 0.66 foot = 7.92 inch
- 1 kejam = 9.075 sq ft
- 1 mile = 8 furlong
- 1 ares = 1076 sq ft = 2.47 cent
- 1 chain = 22 kejam
- 1 furlong = 10 chain
- 1 kejam = 0.9144 metre
- 1 township = 36 sq mile
- 1 sq mile = 640 acre
- 1 cent = 48.4 sq kejam
Units of ancient trade/ Balance weights/Gold weights
- 4 nel edai (நல் எடை) = 1 kunRimaNi (குன்றிமணி)
- 2 kunRimaNi (குன்றிமணி) = 1 manchaadi (மாஞ்சாடி)
- 1 manchaadi (மாஞ்சாடி) = 1 paNavedai (பணவெடை)
- 5 paNavedai (பணவெடை) = 1 kazhanchu (கழஞ்சு)
- 8 paNavedai (பணவெடை) = 1 varaaganedai (வராகனெடை)
- 20 paNavedai (பணவெடை) = 4 kazhanchu(கழஞ்சு) = 1 kaqhsu (கஃசு)
- 80 paNavedai (பணவெடை)= 16 kazhanchu(கழஞ்சு)= 4 kaqhsu (கஃசு)= 1 palam (பலம்)
- 1.5 Kazhanchu (கழஞ்சு) = 8 grams or one sovereign/pavun.
Goods weights
- 32 kunRimaNi = 1 varaaganedai
- 10 varaaganedai = 1 palam
- 40 palam = 1 veesai
- 1000 palam = 1 kaa
- 6 veesai = 1 thulaam
- 8 veesai = 1 maNangu
- 20 maNangu = 1 paaram.
Grain volume
- 1 kuNam = smallest unit of volume
- 9 kuNam = 1 mummi
- 11 mummi = 1 aNu
- 7 aNu = 1 immi
- 7 immi = 1 uminel
- 1 sittigai = 7 uminel
- 360 nel = 1 sevidu
- 5 sevidu = 1 aazhaakku
- 2 aazhaakku = 1 uzhakku
- 2 uzhakku = 1 uri
- 2 uri = 1 padi
- 8 padi = 1 marakkaal(kuRuNi)
- 2 marakkaal (kuRuNi) = 1 padhakku
- 2 padhakku = 1 thooNi
- 5 marakkaal = 1 paRai
- 80 paRai = 1 karisai
- 48 padi = 1 kalam
- 96 padi = 1 pothi (mootai)
- 21 marakkal = 1 Kottai
- 22 maakaani = 100 g
Fluid volume
- 5 sevidu = 1 aazhaakku
- 2 mahani = 1 aazhakku (arai kal padi)
- 2 aazhaakku = 1 uzhakku (Kal padi)
- 2 uzhakku = 1 uri (Arai padi)
- 2 uri = 1 padi
- 8 padi= 1 marakkaal
- 2 marakkaal (kuRuNi) = 1 padhakku
- 2 padhakku = 1 thooNi
- 21 Marakkal = 1 Kottai
Length
- 1 Koan = (115.8953125 picometre)
- 10 Koan = 1 Nunnanu (0.1158953125 nanometre)
- 10 Nunnanu = 1 Anu (atom) (1.158953125 nanometre)
- 8 Anu = 1 Kadhirthugal (9.271625 nanometre)
- 8 Kadhirthugal = 1 Thusumbu (74.173 nanometre)
- 8 Thusumbu = 1 Mayirnuni (0.593384 micrometre)
- 8 Mayirnuni = 1 Nunnmanal (4.74707 micrometre)
- 8 Nunnmanal = 1 Siru-kadugu (37.976563 micrometre)
- 8 Siru-kadugu = 1 Yel (303.8125 micrometre or 0.3038125 millimetre)
- 8 Yel = 1 Nel (2.4305 millimetre)
- 8 nel = 1 viral = 8^8 aNu (atom) = 1.9444 centimetre
- 12 viral = 1 saaN = 100 immi= 23.3333 centimetre
- 2 saaN = 1 muzham = 46.6666 centimetre
- 2 muzham = 1 kajam
- 220 kajam = 1 furlong
- 8 furlong = 1 mile
- 5 furlong = 1 kilometre or 1000 metre
- 4 muzham = 1 paagam
- 625 paagam = 1 kaadham = 5000 saaN = 1166.66 metres = 1.167 kilometre
Tamil texts elaborate the following version:
- 1 ONDRU = One = 10 0
- 10 = PATHU = Ten = 10 1
- 100 = NOORU = Hundred = 10 2
- 1,000 = AAYIRAM = One Thousand = 10 3
- 10,000 = PATHAAYIRAM = Ten Thousand = 10 4
- 1,00,000 = LATCHAM = Hundred Thousand = 10 5
- 10,00,000 = PATHU LATCHAM = One Million = 10 6
- 1,00,00,000 = KODI = Ten Million = 10 7
- 10,00,00,000 = PATHU KODI = Hundred Million = 10 8
- 1,00,00,00,000 = ARPUTHAM = One Billion = 10 9
- 10,00,00,00,000 = PATHU ARPUTHAM = Ten Billion = 10 10
- 1,00,00,00,00,000 = NIGARPUTHAM = Hundred Billion = 10 11
- 10,00,00,00,00,000 = PATHU NIGARPUTHAM = One Trillion = 10 12
- 1,00,00,00,00,00,000 = KUMBAM = Ten Trillion = 10 13
- 10,00,00,00,00,00,000 = PATHU KUMBAM = Hundred Trillion = 10 14
- 1,00,00,00,00,00,00,000 = GANAM = One Quadrillion = 10 15
- 10,00,00,00,00,00,00,000 = PATHU GANAM = Ten Quadrillion = 10 16
- 1,00,00,00,00,00,00,00,000 = KARPAM = Hundred Quadrillion = 10 17
- 10,00,00,00,00,00,00,00,000 = PATHU KARPAM = One Quintillion = 10 18
- 1,00,00,00,00,00,00,00,00,000 = NIKARPAM = Ten Quintillion = 10 19
- 10,00,00,00,00,00,00,00,00,000 = PATHU NIKARPAM = Hundred Quintillion = 10 20
- 1,00,00,00,00,00,00,00,00,00,000 = PATHUMAM = One Sextillion = 10 21
- 10,00,00,00,00,00,00,00,00,00,000 = PATHU PATHUMAM = Ten Sextillion = 10 22
- 1,00,00,00,00,00,00,00,00,00,00,000 = SANGGAM = Hundred Sextillion = 10 23
- 10,00,00,00,00,00,00,00,00,00,00,000 = PATHU SANGGAM = One Septillion = 10 24
- 1,00,00,00,00,00,00,00,00,00,00,00,000 = VELLAM = Ten Septillion = 10 25
- 10,00,00,00,00,00,00,00,00,00,00,00,000 = PATHU VELLAM = Hundred Septillion = 10 26
- 1,00,00,00,00,00,00,00,00,00,00,00,00,000 = ANNIYAM = One Octillion = 10 27
- 10,00,00,00,00,00,00,00,00,00,00,00,00,000 = PATHU ANNIYAM = Ten Octillion = 10 28
- 1,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = ARTTAM = Hundred Octillion = 10 29
- 10,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = PATHU ARTTAM = One Nonillion = 10 30
- 1,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = PARARTTAM = Ten Nonillion = 10 31
- 10,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = PATHU PARARTTAM = Hundred Nonillion = 10 32
- 1,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = POORIYAM = One Decillion = 10 33
- 10,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = PATHU POORIYAM = Ten Decillion = 10 34
- 1,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000 =MUKKODI= Hundred Decillion =10 35
- 10,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000=PATHUMUKKODI= OneUndecillion = 10 36
- 1,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,000 = MAHAYUGAM = Ten Undecillion = 10 37
Fractions
- 1 = onRu
- 3/4 = mukkaal
- 1/2 = arai / paadhi
- 1/4 = kaal
- 1/5 = naalumaa
- 3/16 = mummaahani or mundaani (மும்மாகாணி/முண்டாணி)
- 3/20 = moonRumaa
- 1/8 = araikkaal
- 1/10 = irumaa
- 1/16 = maakaaNi (மாகாணி)
- 1/20 = orumaa
- 3/64 = mukkaal veesam
- 3/80 = mukkaaN
- 1/32 = araimaakaani (அரைமாகாணி)
- 1/40 = araimaa
- 1/64 = kaal maakani (கால்மாகாணி)
- 1/80 = kaaNi
- 3/320 = araikkaaNi munthiri
- 1/160 = araikkaaNi
- 1/320 = munthiri
- 1/102,400 = keezh munthiri
- 1/2,150,400 = immi
- 1/23,654,400 = mummi
- 1/165,580,800 = aNu
- 1/1,490,227,200 = kuNam
- 1/7,451,136,000 = pantham
- 1/44,706,816,000 = sggtta
- 1/312,947,712,000 = vintham
- 1/5,320,111,104,000 = naagavintham
- 1/74,481,555,456,000 = sinthai
- 1/1,489,631,109,120,000 = kathirmunai
- 1/59,585,244,364,800,000 = kuralvaLaippidi
- 1/3,575,114,661,888,000,000 = veLLam
- 1/357,511,466,188,800,000,000 = nuNNmaNl
- 1/2,323,824,530,227,200,000,000 = thaertthugaL