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    Regional & traditional unit converter

    Tola, bigha, marla, rai, jin, pood, arpent — 166 units still used in jewellery, land records, farming and trade, converted through the SI base unit with a cited source for every value.

    South Asia

    Tola1 Tola = 0.0116638 kilogramMasha1 Masha = 0.00097198 kilogramRatti1 Ratti = 0.0001215 kilogramSeer1 Seer = 0.9331 kilogramMaund1 Maund = 37.3242 kilogramChhatank1 Chhatank = 0.05831 kilogramPansari1 Pansari = 4.6655 kilogramAdheli1 Adheli = 0.46655 kilogramBhari1 Bhari = 0.01166 kilogramChatak/Chittak1 Chatak/Chittak = 0.05832 kilogramGaz (Yard)1 Gaz (Yard) = 0.9144 metreHath (Cubit)1 Hath (Cubit) = 0.4572 metreKos/Kosh1 Kos/Kosh = 3,218.69 metreAngul (Finger)1 Angul (Finger) = 0.01905 metreBigha1 Bigha = 2,508.38 square metreKattha/Katha1 Kattha/Katha = 125.419 square metreKanal1 Kanal = 505.857 square metreMarla1 Marla = 25.2929 square metreRopani1 Ropani = 508.737 square metreDhur1 Dhur = 16.929 square metreGuntha1 Guntha = 101.17 square metreCent1 Cent = 40.4686 square metreGround1 Ground = 222.967 square metre

    Middle East & North Africa

    Mithqal1 Mithqal = 0.004536 kilogramDirham (weight)1 Dirham (weight) = 0.003125 kilogramQirat/Carat1 Qirat/Carat = 0.000195 kilogramOka/Okka1 Oka/Okka = 1.2829 kilogramRotl/Rottl1 Rotl/Rottl = 0.4493 kilogramHabba1 Habba = 0.00006 kilogramWaqia (Egypt)1 Waqia (Egypt) = 0.037 kilogramFeddan1 Feddan = 4,200.83 square metreQirat (area)1 Qirat (area) = 175.035 square metreDunam (Ottoman)1 Dunam (Ottoman) = 919.3 square metreDunam (Metric)1 Dunam (Metric) = 1,000 square metreJerib1 Jerib = 2,000 square metreCubit (Egyptian Royal)1 Cubit (Egyptian Royal) = 0.524 metreCubit (Biblical)1 Cubit (Biblical) = 0.445 metre

    East Asia

    Jin/Catty (China)1 Jin/Catty (China) = 0.5 kilogramJin/Catty (Taiwan)1 Jin/Catty (Taiwan) = 0.6 kilogramJin/Catty (Hong Kong)1 Jin/Catty (Hong Kong) = 0.60478 kilogramLiang/Tael1 Liang/Tael = 0.05 kilogramQian/Mace1 Qian/Mace = 0.005 kilogramDan/Picul1 Dan/Picul = 50 kilogramKan1 Kan = 3.75 kilogramMomme1 Momme = 0.00375 kilogramChi (Chinese Foot)1 Chi (Chinese Foot) = 0.3333 metreCun (Chinese Inch)1 Cun (Chinese Inch) = 0.03333 metreZhang1 Zhang = 3.333 metreLi (Chinese Mile)1 Li (Chinese Mile) = 500 metreShaku (Japanese)1 Shaku (Japanese) = 0.303 metreSun (Japanese)1 Sun (Japanese) = 0.0303 metreKen (Japanese)1 Ken (Japanese) = 1.818 metreRi (Japanese Mile)1 Ri (Japanese Mile) = 3,927 metreMu (亩)1 Mu (亩) = 666.67 square metreQing (顷)1 Qing (顷) = 66,666.7 square metrePing (坪)1 Ping (坪) = 3.306 square metreTsubo (坪)1 Tsubo (坪) = 3.306 square metreJō (畳/Tatami)1 Jō (畳/Tatami) = 1.653 square metrePyeong (평)1 Pyeong (평) = 3.306 square metreSheng (升)1 Sheng (升) = 1 litreDou (斗)1 Dou (斗) = 10 litreDan (石)1 Dan (石) = 100 litreKoku (石)1 Koku (石) = 180.39 litreGō (合)1 Gō (合) = 0.1804 litreShō (升)1 Shō (升) = 1.804 litreCup (Japanese)1 Cup (Japanese) = 0.2 litre

    Southeast Asia

    Tahil/Tael1 Tahil/Tael = 0.0378 kilogramViss/Peiktha1 Viss/Peiktha = 1.6329 kilogramTical/Kyat1 Tical/Kyat = 0.01633 kilogramBaht (weight)1 Baht (weight) = 0.01518 kilogramPikul/Pecul1 Pikul/Pecul = 60.479 kilogramCavan1 Cavan = 50 kilogramRai (ไร่)1 Rai (ไร่) = 1,600 square metreNgan (งาน)1 Ngan (งาน) = 400 square metreTalang Wah (ตร.วา)1 Talang Wah (ตร.วา) = 4 square metre

    Central Asia & Silk Road

    Batman1 Batman = 7.5 kilogramMiskal/Mithqal1 Miskal/Mithqal = 0.00469 kilogramCharak1 Charak = 1.875 kilogramKhalvar1 Khalvar = 350 kilogramNakhud1 Nakhud = 0.00019 kilogramTanka1 Tanka = 0.0108 kilogramGaz (Persian)1 Gaz (Persian) = 1.04 metreTanab1 Tanab = 2,000 square metre

    Russia & Eastern Europe

    Pood (Пуд)1 Pood (Пуд) = 16.3805 kilogramFunt (Фунт)1 Funt (Фунт) = 0.40951 kilogramZolotnik1 Zolotnik = 0.004266 kilogramBerkovets1 Berkovets = 163.805 kilogramArshin (Аршин)1 Arshin (Аршин) = 0.7112 metreVershok (Вершок)1 Vershok (Вершок) = 0.04445 metreSazhen (Сажень)1 Sazhen (Сажень) = 2.1336 metreVerst (Верста)1 Verst (Верста) = 1,066.8 metreDesyatina (Десятина)1 Desyatina (Десятина) = 10,925.4 square metreSotka (Сотка)1 Sotka (Сотка) = 100 square metre

    Western Europe

    Stone (UK)1 Stone (UK) = 6.35029 kilogramTroy Ounce1 Troy Ounce = 0.0311035 kilogramPennyweight1 Pennyweight = 0.00155517 kilogramGrain1 Grain = 0.0000648 kilogramCarat (Metric)1 Carat (Metric) = 0.0002 kilogramEll1 Ell = 1.143 metreLeague1 League = 4,828 metreLink (Gunter)1 Link (Gunter) = 0.201168 metreChain (Gunter)1 Chain (Gunter) = 20.1168 metreRod/Perch/Pole1 Rod/Perch/Pole = 5.0292 metreFurlong1 Furlong = 201.168 metreFathom1 Fathom = 1.8288 metreSpan1 Span = 0.2286 metreHand1 Hand = 0.1016 metreDigit (Finger-width)1 Digit (Finger-width) = 0.01875 metrePalm1 Palm = 0.075 metreStadion (Greek)1 Stadion (Greek) = 185 metreMorgen1 Morgen = 8,565 square metreStremma (στρέμμα)1 Stremma (στρέμμα) = 1,000 square metreRood1 Rood = 1,011.71 square metreTeaspoon (Metric)1 Teaspoon (Metric) = 0.005 litreTablespoon (Metric)1 Tablespoon (Metric) = 0.015 litreCup (UK/Imperial)1 Cup (UK/Imperial) = 0.284131 litreCup (Metric)1 Cup (Metric) = 0.25 litreFluid Ounce (UK)1 Fluid Ounce (UK) = 0.0284131 litreGallon (UK)1 Gallon (UK) = 4.54609 litreGallon (US)1 Gallon (US) = 3.78541 litrePint (UK)1 Pint (UK) = 0.568261 litrePint (US)1 Pint (US) = 0.473176 litreGill (UK)1 Gill (UK) = 0.142065 litre

    Americas

    Vara1 Vara = 0.8359 metreSurvey Foot (US)1 Survey Foot (US) = 0.304801 metreArroba1 Arroba = 11.5 kilogramQuintal (Spanish)1 Quintal (Spanish) = 46 kilogramCaballería1 Caballería = 134,202 square metreFanega (area)1 Fanega (area) = 6,460 square metreManzana1 Manzana = 6,988 square metrePeonía1 Peonía = 26,840 square metreCarga1 Carga = 47.5 kilogramTupu1 Tupu = 2,700 square metreTeaspoon (US)1 Teaspoon (US) = 0.00492892 litreTablespoon (US)1 Tablespoon (US) = 0.0147868 litreCup (US)1 Cup (US) = 0.236588 litreFluid Ounce (US)1 Fluid Ounce (US) = 0.0295735 litre

    Africa

    Deben (Egyptian)1 Deben (Egyptian) = 0.091 kilogramKite (Egyptian)1 Kite (Egyptian) = 0.0091 kilogramRotl (North African)1 Rotl (North African) = 0.45 kilogramOka (Ethiopian)1 Oka (Ethiopian) = 1.27 kilogramWakya (West African)1 Wakya (West African) = 0.03 kilogramHead-Load1 Head-Load = 30 kilogramFeddan (Egyptian)1 Feddan (Egyptian) = 4,200 square metreGasha (Ethiopian)1 Gasha (Ethiopian) = 400,000 square metreWalking Day1 Walking Day = 32,500 metreCubit (Nubian)1 Cubit (Nubian) = 0.52 metreDerah (Ethiopian)1 Derah (Ethiopian) = 0.46 metre

    Oceania

    Canoe-Day1 Canoe-Day = 125,000 metreTaro Heap1 Taro Heap = 20 kilogramChain (Surveyor)1 Chain (Surveyor) = 20.1168 metreFathom (Pacific)1 Fathom (Pacific) = 1.8288 metre

    Specialized

    Nautical Mile1 Nautical Mile = 1,852 metreCable1 Cable = 185.2 metreShackle (Anchor Chain)1 Shackle (Anchor Chain) = 27.432 metre

    Persia & Silk Road

    Man/Maund (Persian)1 Man/Maund (Persian) = 3 kilogramSir (Persian)1 Sir (Persian) = 0.075 kilogramMiskal (Persian)1 Miskal (Persian) = 0.0046 kilogramNakhud (Persian)1 Nakhud (Persian) = 0.000195 kilogramDang (Persian)1 Dang (Persian) = 0.00077 kilogramKarsha (Achaemenid)1 Karsha (Achaemenid) = 0.0084 kilogramZar (Iranian Yard)1 Zar (Iranian Yard) = 1.04 metreParasang/Farsakh1 Parasang/Farsakh = 6,000 metreAsparsa1 Asparsa = 190 metreJarib (Persian)1 Jarib (Persian) = 10,000 square metreQasab (Persian)1 Qasab (Persian) = 14.4 square metre

    Need a side-by-side comparison or the interactive map? Open the full measurement atlas.

    Frequently asked

    What is a regional or traditional unit?

    A unit of measure that predates or sits alongside the metric system and is still used locally — the tola in South Asian jewellery, the bigha in land records, the rai in Thai farming, the pood in Russian trade. UnitConvertLab catalogues 166 of them with an SI value and a cited source for each.

    How are these conversions calculated?

    Every traditional unit is defined against its SI base unit (kilogram, metre, square metre or litre), then converted to the requested anchor with a single exact multiplication. No chained rounding is introduced along the way.

    Why do some units show different values in different places?

    Many traditional units were never standardised nationally: a bigha in Bihar is not a bigha in Gujarat. Pages for those units are labelled “Varies by locality” and list the reported variants and range so you can pick the right local standard.

    Can I report an incorrect value or source?

    Yes. Every regional page carries a correction form that attaches the unit id, the published SI value and the current citation to your report, so a correction maps straight to the dataset.

    How many regional conversion pages are there?

    1750 conversion pages, covering both directions between each traditional unit and every relevant modern SI or imperial anchor.

    Report an incorrect value or source

    Regional units vary by district and by century. If this figure, its variant list or its citation is wrong where you are, tell us — the report carries the page context automatically.