how big of 1 rai in meter square?

[s2000]

Hi:

I would like to know how big is 1 RAI in meter square?

[Pailin]

1,600

[s2000]

thank you..

then 1 acre = ? rai

[nam phyyng]

In NZ we use the metric system.
1 hectare = 10,000 sqm
1 rai = 1600 sqm
therefore 1 ha = 6.25 rai
1 ha = 2.471 acres
2.471 acres into 6.25 rai = 2.529
Therefore 1 acre = 2.529 rai

[s2000]

thx

[Peterg]

Conversely: 1 rai = 0.395 368 61 acre

Check out http://www.onlineconversion.com/ for all kinds of conversions.

[lenss]

Informative link Peterg. Tried to find the thai version "Da Long Wa" or something like that. 800 DLW equal 1 rai?

[RobinVirant]

Lenss I think you mean a Ngan but here is my 2 bobs worth:
From a reliable source

1 sq. wah = 4 sq. m. 1 acre = 2.471 rai or 43,560 sq. ft.
1 ngan = 100 wah (or 400 sq. m.) 1 hectare = 6.25 rai or 10,000 sq. m.
1 Rai = 4 Ngan (or 1600 sq. m.)

[McKinley]

Lenss I think you mean a Ngan but here is my 2 bobs worth:
From a reliable source

1 sq. wah = 4 sq. m. 1 acre = 2.471 rai or 43,560 sq. ft.
1 ngan = 100 wah (or 400 sq. m.) 1 hectare = 6.25 rai or 10,000 sq. m.
1 Rai = 4 Ngan (or 1600 sq. m.)

May I be off the topic a bit please?
What does "2 bobs" mean? I've heard only "my 2 cents". I guess they are the same (?) but explanation needed!

[TK]

Informative link Peterg. Tried to find the thai version "Da Long Wa" or something like that. 800 DLW equal 1 rai?

What you called 'Da Long Wa' is ตารางวา (= sq. Wa, measurement of area.), while a Wa (วา) is measurement of a lenght.

1 Wa = 2 M.
1 sq. Wa = 4 sq M.

Rai is another measurement of area,
1 Rai = 400 sq. Wa = 1600 sq. M.

(so to answer your question, 1 Rai = 400 sqW)

What does "2 bobs" mean? I've heard only "my 2 cents". I guess they are the same (?)

Your guess is correct.

A bob is a shilling, old British currency before decimalisation (i.e. change for 240 pennies in a pound, to 100 pennies in a pound). It is equivalent to 5 pence in the new system.

But IMO, in England, I usually hear 'my sixpence worth' instead. so I think '2 bobs worth' is Australian thing?