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 |
rood | 0.0988422 ro | 0.1976843 ro | 0.2965265 ro | 0.3953686 ro | 0.4942108 ro | 0.5930529 ro | 0.6918951 ro | 0.7907372 ro | 0.8895794 ro | 0.9884215 ro | 1.0872637 ro | 1.1861058 ro | 1.2849480 ro | 1.3837901 ro | 1.4826323 ro | 1.5814744 ro | 1.6803166 ro | 1.7791587 ro | 1.8780009 ro | 1.9768431 ro | 2.0756852 ro | 2.1745274 ro | 2.2733695 ro | 2.3722117 ro | 2.4710538 ro | 2.5698960 ro | 2.6687381 ro | 2.7675803 ro | 2.8664224 ro | 2.9652646 ro | 3.0641067 ro | 3.1629489 ro | 3.2617910 ro | 3.3606332 ro | 3.4594753 ro | 3.5583175 ro | 3.6571596 ro | 3.7560018 ro | 3.8548440 ro | 3.9536861 ro | 4.0525283 ro | 4.1513704 ro | 4.2502126 ro | 4.3490547 ro | 4.4478969 ro | 4.5467390 ro | 4.6455812 ro | 4.7444233 ro | 4.8432655 ro | 4.9421076 ro | 5.0409498 ro | 5.1397919 ro | 5.2386341 ro | 5.3374762 ro | 5.4363184 ro | 5.5351605 ro | 5.6340027 ro | 5.7328449 ro | 5.8316870 ro | 5.9305292 ro | 6.0293713 ro | 6.1282135 ro | 6.2270556 ro | 6.3258978 ro | 6.4247399 ro | 6.5235821 ro | 6.6224242 ro | 6.7212664 ro | 6.8201085 ro | 6.9189507 ro | 7.0177928 ro | 7.1166350 ro | 7.2154771 ro | 7.3143193 ro | 7.4131614 ro | 7.5120036 ro | 7.6108457 ro | 7.7096879 ro | 7.8085301 ro | 7.9073722 ro | 8.0062144 ro | 8.1050565 ro | 8.2038987 ro | 8.3027408 ro | 8.4015830 ro | 8.5004251 ro | 8.5992673 ro | 8.6981094 ro | 8.7969516 ro | 8.8957937 ro | 8.9946359 ro | 9.0934780 ro | 9.1923202 ro | 9.2911623 ro | 9.3900045 ro | 9.4888466 ro | 9.5876888 ro | 9.6865310 ro | 9.7853731 ro | 9.8842153 ro |
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 | roods | ares | roods |
---|---|---|---|
1 | = 0.098842152586866 | 6 | = 0.5930529155212 |
2 | = 0.19768430517373 | 7 | = 0.69189506810806 |
3 | = 0.2965264577606 | 8 | = 0.79073722069493 |
4 | = 0.39536861034746 | 9 | = 0.8895793732818 |
5 | = 0.49421076293433 | 10 | = 0.98842152586866 |
A rood /ˈruːd/ is an historic English and international inch-pound measure of area, as well as an archaic English measure of length.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
rood | ro | ≡ 1⁄4 ac | = 1011.7141056 m2 | Imperial/US |
roods | ares | roods | ares |
---|---|---|---|
1 | = 10.117141056 | 6 | = 60.702846336 |
2 | = 20.234282112 | 7 | = 70.819987392 |
3 | = 30.351423168 | 8 | = 80.937128448 |
4 | = 40.468564224 | 9 | = 91.054269504 |
5 | = 50.58570528 | 10 | = 101.17141056 |
ares | roods |
---|---|
1 | = 0.0988422 |
10.1171411 | = 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 …) |