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# Rais

A rai (Thai: ไร่) is a unit of area, equal to 1 square sen (เส้น) or 1,600 square meters (40m × 40m), and is used in measuring land area for a cadastre or cadastral map. Its current size is precisely derived from the meter, but is neither part of nor recognized by the modern metric system, the International System (SI). The rai equals four ngaan (Thai: งาน) or 400 square wa (Thai: ตารางวา). The rai equals 0.3954 acres.

Rais
Symbol/abbreviation: ไร่
Unit of: AREA
AREA's base unit: square meters (Non-SI/Derived Unit)
In relation to the base unit (square meters), 1 Rais = 1600 square meters.
[Conversion table] 1 Rais (ไร่) to all area units
1 ไร่= 0.395368260824 acres (ac)
1 ไร่= 16 ares (a)
1 ไร่= 0.395913946362 arpents (arp)
1 ไร่= 1.6E+31 barns (barn)
1 ไร่= 0.16 bunders (b)
1 ไร่= 0.124031007752 carreau (carreau)
1 ไร่= 0.00329218106996 carucate (carucate)
1 ไร่= 0.296526457761 cawneys (cawney)
1 ไร่= 1600 centiares (ca)
1 ไร่= 3157640.25597 circular inches (c in)
1 ไร่= 3.15764038683E+12 circular mils (c mil)
1 ไร่= 0.407083701657 cuerdas (cuerda)
1 ไร่= 1.6 decares (daa)
1 ไร่= 160 deciares (da)
1 ไร่= 1.6 dekares (daa )
1 ไร่= 94.5123752141 dhurs (dhur)
1 ไร่= 1.6 dunams (dunam)
1 ไร่= 2.40512474396E+31 electron cross sections (ecs)
1 ไร่= 1.58102766798 farthingales (fa)
1 ไร่= 0.380952380952 feddans (feddan)
1 ไร่= 0.298997517386 football fields (ff)
1 ไร่= 0.16 hectares (ha)
1 ไร่= 0.8 jeribs (jerib)
1 ไร่= 987.654320988 jo JAPAN (jo)
1 ไร่= 10.3720990535 kapplands (kapp)
1 ไร่= 0.186763160966 morgen SOUTH AFRICA (morgen)
1 ไร่= 0.0197684306268 nooks (nook)
1 ไร่= 0.0266666666667 oxgangs (oxgangs)
1 ไร่= 483.999286101 pings (ping)
1 ไร่= 6.12533976494E+72 planck areas (Ap)
1 ไร่= 0.25 plazas (plaza)
1 ไร่= 483.999286101 pyeongs (pyeong)
1 ไร่= 1 rais (ไร่)
1 ไร่= 1.58147444139 roods (rood)
1 ไร่= 17222.2566667 sabins (sabin)
1 ไร่= 0.000617763453677 sections (section)
1 ไร่= 0.224089635854 soccer fields (soccer field)
1 ไร่= 1.6E+23 square angstroms (Å2, sq Å)
1 ไร่= 7.14939277303E-20 square astronomical units (au2, sq au)
1 ไร่= 24806201550.4 square calibers (sq cal)
1 ไร่= 16000000 square centimeters (cm2, sq cm)
1 ไร่= 3.95368610347 square chains (sq ch)
1 ไร่= 7654.33629633 square cubits (sq cubit)
1 ไร่= 16 square decameters (dam2, sq dam)
1 ไร่= 160000 square decimeters (dm2, sq dm)
1 ไร่= 16 square dekameters (dm2, sq dam)
1 ไร่= 4408897.70668 square digits (sq digit)
1 ไร่= 478.395938418 square fathoms (sq fath)
1 ไร่= 17222.2640819 square feet (ft2, sq ft)
1 ไร่= 0.16 square hectometers (hm2, sq hm)
1 ไร่= 2480004.96001 square inches (in2, sq in)
1 ไร่= 0.0016 square kilometers (km2, sq km)
1 ไร่= 5.18317065952E-5 square leagues NAUTICAL (sq leag [nautical])
1 ไร่= 6.86401098654E-5 square leagues US STATUTE (sq leag [US statute])
1 ไร่= 39536.7029839 square links GUNTER SURVEY (sq li [survey])
1 ไร่= 17222.1877061 square links RAMDEN ENGINEER (sq li [engineer])
1 ไร่= 1600 square meters (m2, sq m)
1 ไร่= 1.6E+15 square micrometers (μ2, sq μ)
1 ไร่= 0.000617763453748 square miles (mi2, sq mi)
1 ไร่= 1600000000 square millimeters (mm2, sq mm)
1 ไร่= 2.48000496001E+12 square mils (sq mil)
1 ไร่= 1.6E+21 square nanometers (nm2, sq nm)
1 ไร่= 1.68042361211E-30 square parsecs (sq pc)
1 ไร่= 63.2589776556 square perch (sq perch)
1 ไร่= 63.2589776556 square poles (sq pole)
1 ไร่= 63.2589776556 square rods (sq rod)
1 ไร่= 1913.58407408 square yards (yd2, sq yd)
1 ไร่= 0.590623846438 stangs (stang)
1 ไร่= 987.654320988 tatamis JAPAN (tatami)
1 ไร่= 0.290065264685 tonde land (tondeland)
1 ไร่= 1.71600959352E-5 townships (township)
1 ไร่= 483.99782201 tsubo (tsubo)
1 ไร่= 0.324122842557 tunnlands (tunnland)
1 ไร่= 2289.84582182 varas castellanas cuads (varas-castellana)
1 ไร่= 254.427313535 varas conuqueras cuads (varas-conuquera)
1 ไร่= 0.0133333333333 virgates (virgate)