Square Wa (Thai) to Square Meters (sq wa to m²)
1 square wa (Thai) equals 4 square meters exactly.
How to convert square wa (Thai) to square meters
To convert square wa (Thai) to square meters, multiply the number of square wa (Thai) by 4. This factor is exact. To go the other way, multiply square meters by 0.25.
square meters = square wa (Thai) × 4
Example: 10 square wa (Thai) = 40 square meters.
About these units
Square Wa (Thai) (sq wa)
A square 2 meters on a side: exactly 4 m². Thai property prices are often quoted per square wa.
Tarang wa, the Thai name behind the English square wa, literally refers to a grid of wa. It is the smallest standard Thai land unit, the area of a square with sides of one wa, so with a wa of 2 meters it equals 4 square meters.
One hundred square wa form a ngan and 400 form a rai. Because it is so small, it is the unit in which urban plots and condominium-adjacent land are usually priced, and listings often quote a price per square wa.
Its value is the square of the wa, so any change to the wa would flow straight through, but the metric definition has been fixed since the cadastral survey of the Royal Thai Survey Department began in 1896. A typical townhouse lot of 20 square wa is therefore 80 square meters.
1 square wa (Thai) = 4 square meters (exactly).
Sources: Wikipedia: Rai (unit); Wikipedia: Thai units of measurement
Square Meter (m²)
The SI unit of area: a square one meter on each side. Used for floor areas and property sizes in most of the world.
Squaring the meter was built into the metric system from the start. The French law of 18 Germinal, Year III (7 April 1795) defined the are, the land unit that gave the hectare its name, as exactly 100 square meters, so the square meter was already the foundation of metric land measure. Nobody is credited with inventing it as a separate unit. It is simply the area of a square one meter on each side, and any SI prefix that works for the meter works for it, with the prefix squared along with the unit.
That squaring catches people out: a square kilometer is one million square meters, not one thousand. Since 1983 the meter has been defined through the speed of light, so the square meter is tied to a constant of nature as well as to the second. A hectare, about the area of Trafalgar Square in London, is 10,000 square meters. In everyday terms one square meter is about 10.76 square feet. Unicode has a compatibility character for it, but the recommended way to write it is the plain superscript two: m².
The square meter is the reference unit for area on this site.
Sources: Wikipedia: Square metre; Wikipedia: Are (unit); NIST: the meter and the SI redefinition
Related conversions
- Square meters to square wa (Thai) (reverse)
- Square wa (Thai) to square kilometers
- Square wa (Thai) to hectares
- Square wa (Thai) to square inches
- Square wa (Thai) to square feet
- Square wa (Thai) to square yards
- Square wa (Thai) to acres
- Square wa (Thai) to square miles
- Square kilometers to square meters
- Hectares to square meters
- Square inches to square meters
- Square feet to square meters
- Square yards to square meters
- Acres to square meters
- Square miles to square meters
- Square centimeters to square meters
- Square millimeters to square meters
- Tsubo to square meters
- Pyeong to square meters
- Rai (Thai) to square meters
See all area units.