acre
| Symbol: | ac, acre | ||||||||||
| Category: | Area | ||||||||||
| SI Equivalent: | 4046.86 m2 | ||||||||||
| Dimension: | L2 | ||||||||||
| System: | UK, US, CAN | ||||||||||
| Notes | |||||||||||
British unit of area used in surveyor's measurements. This is the English statute acre, and the US statute acre is the same. The acre was first defined in England in the reign of Edward I and is thought to be the area which a yoke of oxen could plow in a day. The acre was limited to its present definite quantity by statutes of Edward I, Edward III, and Henry VIII.
| |||||||||||
57 conversions, showing those commonly used | Show all
1 ac, acre =
| Area | ||
| Symbol | Unit Name | |
| 4.04686×1031 | b | barn |
| 0.404686 | ha | hectare |
| 4.04686×107 | cm2 | square centimeter |
| 4.356×104 | ft2 | square foot |
| 0.404686 | hm2 | square hectometer |
| 6.27264×106 | in2, sq. in | square inch |
| 4.04686×10-3 | km2 | square kilometer |
| 4046.86 | m2 | square meter |
| 4.04686×1015 | µm2 | square micrometer |
| 6.27264×1012 | mil2 | square mil (thou) |
| 1.56249×10-3 | sq. mi. (int.) | square mile (int.) |
| 4.04686×109 | mm2 | square millimeter |
| 4840 | yd2, sq. yd | square yard |
more...
