acre | 1 ac | 2 ac | 3 ac | 4 ac | 5 ac | 6 ac | 7 ac | 8 ac | 9 ac | 10 ac | 11 ac | 12 ac | 13 ac | 14 ac | 15 ac | 16 ac | 17 ac | 18 ac | 19 ac | 20 ac | 21 ac | 22 ac | 23 ac | 24 ac | 25 ac | 26 ac | 27 ac | 28 ac | 29 ac | 30 ac | 31 ac | 32 ac | 33 ac | 34 ac | 35 ac | 36 ac | 37 ac | 38 ac | 39 ac | 40 ac | 41 ac | 42 ac | 43 ac | 44 ac | 45 ac | 46 ac | 47 ac | 48 ac | 49 ac | 50 ac | 51 ac | 52 ac | 53 ac | 54 ac | 55 ac | 56 ac | 57 ac | 58 ac | 59 ac | 60 ac | 61 ac | 62 ac | 63 ac | 64 ac | 65 ac | 66 ac | 67 ac | 68 ac | 69 ac | 70 ac | 71 ac | 72 ac | 73 ac | 74 ac | 75 ac | 76 ac | 77 ac | 78 ac | 79 ac | 80 ac | 81 ac | 82 ac | 83 ac | 84 ac | 85 ac | 86 ac | 87 ac | 88 ac | 89 ac | 90 ac | 91 ac | 92 ac | 93 ac | 94 ac | 95 ac | 96 ac | 97 ac | 98 ac | 99 ac | 100 ac |
square kilometer | 0.0040469 km2 | 0.0080937 km2 | 0.0121406 km2 | 0.0161874 km2 | 0.0202343 km2 | 0.0242811 km2 | 0.0283280 km2 | 0.0323749 km2 | 0.0364217 km2 | 0.0404686 km2 | 0.0445154 km2 | 0.0485623 km2 | 0.0526091 km2 | 0.0566560 km2 | 0.0607028 km2 | 0.0647497 km2 | 0.0687966 km2 | 0.0728434 km2 | 0.0768903 km2 | 0.0809371 km2 | 0.0849840 km2 | 0.0890308 km2 | 0.0930777 km2 | 0.0971246 km2 | 0.1011714 km2 | 0.1052183 km2 | 0.1092651 km2 | 0.1133120 km2 | 0.1173588 km2 | 0.1214057 km2 | 0.1254525 km2 | 0.1294994 km2 | 0.1335463 km2 | 0.1375931 km2 | 0.1416400 km2 | 0.1456868 km2 | 0.1497337 km2 | 0.1537805 km2 | 0.1578274 km2 | 0.1618743 km2 | 0.1659211 km2 | 0.1699680 km2 | 0.1740148 km2 | 0.1780617 km2 | 0.1821085 km2 | 0.1861554 km2 | 0.1902023 km2 | 0.1942491 km2 | 0.1982960 km2 | 0.2023428 km2 | 0.2063897 km2 | 0.2104365 km2 | 0.2144834 km2 | 0.2185302 km2 | 0.2225771 km2 | 0.2266240 km2 | 0.2306708 km2 | 0.2347177 km2 | 0.2387645 km2 | 0.2428114 km2 | 0.2468582 km2 | 0.2509051 km2 | 0.2549520 km2 | 0.2589988 km2 | 0.2630457 km2 | 0.2670925 km2 | 0.2711394 km2 | 0.2751862 km2 | 0.2792331 km2 | 0.2832799 km2 | 0.2873268 km2 | 0.2913737 km2 | 0.2954205 km2 | 0.2994674 km2 | 0.3035142 km2 | 0.3075611 km2 | 0.3116079 km2 | 0.3156548 km2 | 0.3197017 km2 | 0.3237485 km2 | 0.3277954 km2 | 0.3318422 km2 | 0.3358891 km2 | 0.3399359 km2 | 0.3439828 km2 | 0.3480297 km2 | 0.3520765 km2 | 0.3561234 km2 | 0.3601702 km2 | 0.3642171 km2 | 0.3682639 km2 | 0.3723108 km2 | 0.3763576 km2 | 0.3804045 km2 | 0.3844514 km2 | 0.3884982 km2 | 0.3925451 km2 | 0.3965919 km2 | 0.4006388 km2 | 0.4046856 km2 |
The acre is a unit of land area used in the imperial and US customary systems. It is defined as the area of 1 chain by 1 furlong (66 by 660 feet), which is exactly equal to 1⁄640 of a square mile, 43,560 square feet, approximately 4,047 m2, or about 40% of a hectare.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
acre | ac | ≡ 1 ch × 10 ch = 4840 sq yd | ≡ 4046.8564224 m2 | Imperial/US |
acres | square kilometers | acres | square kilometers |
---|---|---|---|
1 | = 0.00404685642 | 6 | = 0.02428113852 |
2 | = 0.00809371284 | 7 | = 0.02832799494 |
3 | = 0.01214056926 | 8 | = 0.03237485136 |
4 | = 0.01618742568 | 9 | = 0.03642170778 |
5 | = 0.0202342821 | 10 | = 0.0404685642 |
Square kilometre (International spelling as used by the International Bureau of Weights and Measures) or square kilometer (American spelling), symbol km2, is a multiple of the square metre, the SI unit of area or surface area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square kilometer | km2 | ≡ 1 km × 1 km | = 106 m2 | Metric system SI |
square kilometers | acres | square kilometers | acres |
---|---|---|---|
1 | = 247.10538161371 | 6 | = 1482.6322896823 |
2 | = 494.21076322742 | 7 | = 1729.737671296 |
3 | = 741.31614484114 | 8 | = 1976.8430529097 |
4 | = 988.42152645485 | 9 | = 2223.9484345234 |
5 | = 1235.5269080686 | 10 | = 2471.0538161371 |
acres | square kilometers |
---|---|
1 | = 0.0040469 |
247.1053816 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |