are | 1 a | 2 a | 3 a | 4 a | 5 a | 6 a | 7 a | 8 a | 9 a | 10 a | 11 a | 12 a | 13 a | 14 a | 15 a | 16 a | 17 a | 18 a | 19 a | 20 a | 21 a | 22 a | 23 a | 24 a | 25 a | 26 a | 27 a | 28 a | 29 a | 30 a | 31 a | 32 a | 33 a | 34 a | 35 a | 36 a | 37 a | 38 a | 39 a | 40 a | 41 a | 42 a | 43 a | 44 a | 45 a | 46 a | 47 a | 48 a | 49 a | 50 a | 51 a | 52 a | 53 a | 54 a | 55 a | 56 a | 57 a | 58 a | 59 a | 60 a | 61 a | 62 a | 63 a | 64 a | 65 a | 66 a | 67 a | 68 a | 69 a | 70 a | 71 a | 72 a | 73 a | 74 a | 75 a | 76 a | 77 a | 78 a | 79 a | 80 a | 81 a | 82 a | 83 a | 84 a | 85 a | 86 a | 87 a | 88 a | 89 a | 90 a | 91 a | 92 a | 93 a | 94 a | 95 a | 96 a | 97 a | 98 a | 99 a | 100 a |
centiare | 100 ca | 200 ca | 300 ca | 400 ca | 500 ca | 600 ca | 700 ca | 800 ca | 900 ca | 1 000 ca | 1 100 ca | 1 200 ca | 1 300 ca | 1 400 ca | 1 500 ca | 1 600 ca | 1 700 ca | 1 800 ca | 1 900 ca | 2 000 ca | 2 100 ca | 2 200 ca | 2 300 ca | 2 400 ca | 2 500 ca | 2 600 ca | 2 700 ca | 2 800 ca | 2 900 ca | 3 000 ca | 3 100 ca | 3 200 ca | 3 300 ca | 3 400 ca | 3 500 ca | 3 600 ca | 3 700 ca | 3 800 ca | 3 900 ca | 4 000 ca | 4 100 ca | 4 200 ca | 4 300 ca | 4 400 ca | 4 500 ca | 4 600 ca | 4 700 ca | 4 800 ca | 4 900 ca | 5 000 ca | 5 100 ca | 5 200 ca | 5 300 ca | 5 400 ca | 5 500 ca | 5 600 ca | 5 700 ca | 5 800 ca | 5 900 ca | 6 000 ca | 6 100 ca | 6 200 ca | 6 300 ca | 6 400 ca | 6 500 ca | 6 600 ca | 6 700 ca | 6 800 ca | 6 900 ca | 7 000 ca | 7 100 ca | 7 200 ca | 7 300 ca | 7 400 ca | 7 500 ca | 7 600 ca | 7 700 ca | 7 800 ca | 7 900 ca | 8 000 ca | 8 100 ca | 8 200 ca | 8 300 ca | 8 400 ca | 8 500 ca | 8 600 ca | 8 700 ca | 8 800 ca | 8 900 ca | 9 000 ca | 9 100 ca | 9 200 ca | 9 300 ca | 9 400 ca | 9 500 ca | 9 600 ca | 9 700 ca | 9 800 ca | 9 900 ca | 10 000 ca |
The are (/ˈɑːr/ or /ˈɛər/) is a unit of area, equal to 100 square metres (10 m × 10 m), used for measuring land area. It was defined by older forms of the metric system, but is now outside of the modern International System of Units (SI).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
are | a | ≡ 100 m2 | ≡ 100 m2 | Metric system SI |
ares | centiares | ares | centiares |
---|---|---|---|
1 | = 100 | 6 | = 600 |
2 | = 200 | 7 | = 700 |
3 | = 300 | 8 | = 800 |
4 | = 400 | 9 | = 900 |
5 | = 500 | 10 | = 1000 |
The centiare is one square metre.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centiare | ca | = 1 m2 | = 1 m2 | Metric system SI |
centiares | ares | centiares | ares |
---|---|---|---|
1 | = 0.01 | 6 | = 0.06 |
2 | = 0.02 | 7 | = 0.07 |
3 | = 0.03 | 8 | = 0.08 |
4 | = 0.04 | 9 | = 0.09 |
5 | = 0.05 | 10 | = 0.1 |
ares | centiares |
---|---|
1 | = 100 |
0.01 | = 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 …) |