cubit | 1 cubit | 2 cubit | 3 cubit | 4 cubit | 5 cubit | 6 cubit | 7 cubit | 8 cubit | 9 cubit | 10 cubit | 11 cubit | 12 cubit | 13 cubit | 14 cubit | 15 cubit | 16 cubit | 17 cubit | 18 cubit | 19 cubit | 20 cubit | 21 cubit | 22 cubit | 23 cubit | 24 cubit | 25 cubit | 26 cubit | 27 cubit | 28 cubit | 29 cubit | 30 cubit | 31 cubit | 32 cubit | 33 cubit | 34 cubit | 35 cubit | 36 cubit | 37 cubit | 38 cubit | 39 cubit | 40 cubit | 41 cubit | 42 cubit | 43 cubit | 44 cubit | 45 cubit | 46 cubit | 47 cubit | 48 cubit | 49 cubit | 50 cubit | 51 cubit | 52 cubit | 53 cubit | 54 cubit | 55 cubit | 56 cubit | 57 cubit | 58 cubit | 59 cubit | 60 cubit | 61 cubit | 62 cubit | 63 cubit | 64 cubit | 65 cubit | 66 cubit | 67 cubit | 68 cubit | 69 cubit | 70 cubit | 71 cubit | 72 cubit | 73 cubit | 74 cubit | 75 cubit | 76 cubit | 77 cubit | 78 cubit | 79 cubit | 80 cubit | 81 cubit | 82 cubit | 83 cubit | 84 cubit | 85 cubit | 86 cubit | 87 cubit | 88 cubit | 89 cubit | 90 cubit | 91 cubit | 92 cubit | 93 cubit | 94 cubit | 95 cubit | 96 cubit | 97 cubit | 98 cubit | 99 cubit | 100 cubit |
micrometer | 500 000 μm | 1 000 000 μm | 1 500 000 μm | 2 000 000 μm | 2 500 000 μm | 3 000 000 μm | 3 500 000 μm | 4 000 000 μm | 4 500 000 μm | 5 000 000 μm | 5 500 000 μm | 6 000 000 μm | 6 500 000 μm | 7 000 000 μm | 7 500 000 μm | 8 000 000 μm | 8 500 000 μm | 9 000 000 μm | 9 500 000 μm | 10 000 000 μm | 10 500 000 μm | 11 000 000 μm | 11 500 000 μm | 12 000 000 μm | 12 500 000 μm | 13 000 000 μm | 13 500 000 μm | 14 000 000 μm | 14 500 000 μm | 15 000 000 μm | 15 500 000 μm | 16 000 000 μm | 16 500 000 μm | 17 000 000 μm | 17 500 000 μm | 18 000 000 μm | 18 500 000 μm | 19 000 000 μm | 19 500 000 μm | 20 000 000 μm | 20 500 000 μm | 21 000 000 μm | 21 500 000 μm | 22 000 000 μm | 22 500 000 μm | 23 000 000 μm | 23 500 000 μm | 24 000 000 μm | 24 500 000 μm | 25 000 000 μm | 25 500 000 μm | 26 000 000 μm | 26 500 000 μm | 27 000 000 μm | 27 500 000 μm | 28 000 000 μm | 28 500 000 μm | 29 000 000 μm | 29 500 000 μm | 30 000 000 μm | 30 500 000 μm | 31 000 000 μm | 31 500 000 μm | 32 000 000 μm | 32 500 000 μm | 33 000 000 μm | 33 500 000 μm | 34 000 000 μm | 34 500 000 μm | 35 000 000 μm | 35 500 000 μm | 36 000 000 μm | 36 500 000 μm | 37 000 000 μm | 37 500 000 μm | 38 000 000 μm | 38 500 000 μm | 39 000 000 μm | 39 500 000 μm | 40 000 000 μm | 40 500 000 μm | 41 000 000 μm | 41 500 000 μm | 42 000 000 μm | 42 500 000 μm | 43 000 000 μm | 43 500 000 μm | 44 000 000 μm | 44 500 000 μm | 45 000 000 μm | 45 500 000 μm | 46 000 000 μm | 46 500 000 μm | 47 000 000 μm | 47 500 000 μm | 48 000 000 μm | 48 500 000 μm | 49 000 000 μm | 49 500 000 μm | 50 000 000 μm |
The cubit is an ancient unit based on the forearm length from the tip of the middle finger to the bottom of the elbow. Cubits of various lengths were employed in many parts of the world in antiquity, during the Middle Ages and as recently as Early Modern Times. The term is still used in hedge laying, the length of the forearm being frequently used to determine the interval between stakes placed within the hedge.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
cubit | ≡ Distance from fingers to elbow ≈ 18 in | ≈ 0.5 m | Other (Length) |
cubit | micrometers | cubit | micrometers |
---|---|---|---|
1 | ≈ 500000 | 4 | ≈ 2000000 |
1.5 | ≈ 750000 | 4.5 | ≈ 2250000 |
2 | ≈ 1000000 | 5 | ≈ 2500000 |
2.5 | ≈ 1250000 | 5.5 | ≈ 2750000 |
3 | ≈ 1500000 | 6 | ≈ 3000000 |
The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling 1×10−6 of a metre (SI standard prefix "micro-" = 10−6); that is, one millionth of a metre (or one thousandth of a millimetre, 0.001 mm, or about 0.000039 inch).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
micrometer | μm | ≡ 1×10-6 m | ≡ 1×10-6 m | Metric system SI |
micrometers | cubit | micrometers | cubit |
---|---|---|---|
1 | ≈ 2.0E-6 | 4 | ≈ 8.0E-6 |
1.5 | ≈ 3.0E-6 | 4.5 | ≈ 9.0E-6 |
2 | ≈ 4.0E-6 | 5 | ≈ 1.0E-5 |
2.5 | ≈ 5.0E-6 | 5.5 | ≈ 1.1E-5 |
3 | ≈ 6.0E-6 | 6 | ≈ 1.2E-5 |
cubit | micrometers |
---|---|
1 | ≈ 500 000 |
2.0 × 10-6 | ≈ 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 …) |