| yardland | 1 yardland | 2 yardland | 3 yardland | 4 yardland | 5 yardland | 6 yardland | 7 yardland | 8 yardland | 9 yardland | 10 yardland | 11 yardland | 12 yardland | 13 yardland | 14 yardland | 15 yardland | 16 yardland | 17 yardland | 18 yardland | 19 yardland | 20 yardland | 21 yardland | 22 yardland | 23 yardland | 24 yardland | 25 yardland | 26 yardland | 27 yardland | 28 yardland | 29 yardland | 30 yardland | 31 yardland | 32 yardland | 33 yardland | 34 yardland | 35 yardland | 36 yardland | 37 yardland | 38 yardland | 39 yardland | 40 yardland | 41 yardland | 42 yardland | 43 yardland | 44 yardland | 45 yardland | 46 yardland | 47 yardland | 48 yardland | 49 yardland | 50 yardland | 51 yardland | 52 yardland | 53 yardland | 54 yardland | 55 yardland | 56 yardland | 57 yardland | 58 yardland | 59 yardland | 60 yardland | 61 yardland | 62 yardland | 63 yardland | 64 yardland | 65 yardland | 66 yardland | 67 yardland | 68 yardland | 69 yardland | 70 yardland | 71 yardland | 72 yardland | 73 yardland | 74 yardland | 75 yardland | 76 yardland | 77 yardland | 78 yardland | 79 yardland | 80 yardland | 81 yardland | 82 yardland | 83 yardland | 84 yardland | 85 yardland | 86 yardland | 87 yardland | 88 yardland | 89 yardland | 90 yardland | 91 yardland | 92 yardland | 93 yardland | 94 yardland | 95 yardland | 96 yardland | 97 yardland | 98 yardland | 99 yardland | 100 yardland |
| barn | 1.2 × 1033 b | 2.4 × 1033 b | 3.6 × 1033 b | 4.8 × 1033 b | 6.0 × 1033 b | 7.2 × 1033 b | 8.4 × 1033 b | 9.6 × 1033 b | 1.08 × 1034 b | 1.2 × 1034 b | 1.32 × 1034 b | 1.44 × 1034 b | 1.56 × 1034 b | 1.68 × 1034 b | 1.8 × 1034 b | 1.92 × 1034 b | 2.04 × 1034 b | 2.16 × 1034 b | 2.28 × 1034 b | 2.4 × 1034 b | 2.52 × 1034 b | 2.64 × 1034 b | 2.76 × 1034 b | 2.88 × 1034 b | 3.0 × 1034 b | 3.12 × 1034 b | 3.24 × 1034 b | 3.36 × 1034 b | 3.48 × 1034 b | 3.6 × 1034 b | 3.72 × 1034 b | 3.84 × 1034 b | 3.96 × 1034 b | 4.08 × 1034 b | 4.2 × 1034 b | 4.32 × 1034 b | 4.44 × 1034 b | 4.56 × 1034 b | 4.68 × 1034 b | 4.8 × 1034 b | 4.92 × 1034 b | 5.04 × 1034 b | 5.16 × 1034 b | 5.28 × 1034 b | 5.4 × 1034 b | 5.52 × 1034 b | 5.64 × 1034 b | 5.76 × 1034 b | 5.88 × 1034 b | 6.0 × 1034 b | 6.12 × 1034 b | 6.24 × 1034 b | 6.36 × 1034 b | 6.48 × 1034 b | 6.6 × 1034 b | 6.72 × 1034 b | 6.84 × 1034 b | 6.96 × 1034 b | 7.08 × 1034 b | 7.2 × 1034 b | 7.32 × 1034 b | 7.44 × 1034 b | 7.56 × 1034 b | 7.68 × 1034 b | 7.8 × 1034 b | 7.92 × 1034 b | 8.04 × 1034 b | 8.16 × 1034 b | 8.28 × 1034 b | 8.4 × 1034 b | 8.52 × 1034 b | 8.64 × 1034 b | 8.76 × 1034 b | 8.88 × 1034 b | 9.0 × 1034 b | 9.12 × 1034 b | 9.24 × 1034 b | 9.36 × 1034 b | 9.48 × 1034 b | 9.6 × 1034 b | 9.72 × 1034 b | 9.84 × 1034 b | 9.96 × 1034 b | 1.008 × 1035 b | 1.02 × 1035 b | 1.032 × 1035 b | 1.044 × 1035 b | 1.056 × 1035 b | 1.068 × 1035 b | 1.08 × 1035 b | 1.092 × 1035 b | 1.104 × 1035 b | 1.116 × 1035 b | 1.128 × 1035 b | 1.14 × 1035 b | 1.152 × 1035 b | 1.164 × 1035 b | 1.176 × 1035 b | 1.188 × 1035 b | 1.2 × 1035 b |
The virgate, yardland, or yard of land (Latin: virgāta [terrae]) was an English unit of land. Primarily a measure of tax assessment rather than area, the virgate was usually (but not always) reckoned as 1⁄4 hide and notionally (but seldom exactly) equal to 30 acres. It was equivalent to two of the Danelaw's oxgangs.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| yardland | ≈ 30 ac | ≈ 1.2×105 m2 | Other |
| yardlands | barns | yardlands | barns |
|---|---|---|---|
| 1 | = 1.2E+33 | 6 | = 7.2E+33 |
| 2 | = 2.4E+33 | 7 | = 8.4E+33 |
| 3 | = 3.6E+33 | 8 | = 9.6E+33 |
| 4 | = 4.8E+33 | 9 | = 1.08E+34 |
| 5 | = 6.0E+33 | 10 | = 1.2E+34 |
A barn (symbol: b) is a unit of area equal to 10−28 m2 (100 fm2). Originally used in nuclear physics for expressing the cross sectional area of nuclei and nuclear reactions, today it is also used in all fields of high-energy physics to express the cross sections of any scattering process, and is best understood as a measure of the probability of interaction between small particles.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| barn | b | ≡ 10−28 m2 | ≡ 10−28 m2 | Nuclear Physics |
| barns | yardlands | barns | yardlands |
|---|---|---|---|
| 1 | = 8.3333333333333E-34 | 6 | = 5.0E-33 |
| 2 | = 1.6666666666667E-33 | 7 | = 5.8333333333333E-33 |
| 3 | = 2.5E-33 | 8 | = 6.6666666666667E-33 |
| 4 | = 3.3333333333333E-33 | 9 | = 7.5E-33 |
| 5 | = 4.1666666666667E-33 | 10 | = 8.3333333333333E-33 |
| yardlands | barns |
|---|---|
| 1 | = 1.2 × 1033 |
| 8.3333333333333 × 10-34 | = 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 …) |