fathom | 1 ftm | 2 ftm | 3 ftm | 4 ftm | 5 ftm | 6 ftm | 7 ftm | 8 ftm | 9 ftm | 10 ftm | 11 ftm | 12 ftm | 13 ftm | 14 ftm | 15 ftm | 16 ftm | 17 ftm | 18 ftm | 19 ftm | 20 ftm | 21 ftm | 22 ftm | 23 ftm | 24 ftm | 25 ftm | 26 ftm | 27 ftm | 28 ftm | 29 ftm | 30 ftm | 31 ftm | 32 ftm | 33 ftm | 34 ftm | 35 ftm | 36 ftm | 37 ftm | 38 ftm | 39 ftm | 40 ftm | 41 ftm | 42 ftm | 43 ftm | 44 ftm | 45 ftm | 46 ftm | 47 ftm | 48 ftm | 49 ftm | 50 ftm | 51 ftm | 52 ftm | 53 ftm | 54 ftm | 55 ftm | 56 ftm | 57 ftm | 58 ftm | 59 ftm | 60 ftm | 61 ftm | 62 ftm | 63 ftm | 64 ftm | 65 ftm | 66 ftm | 67 ftm | 68 ftm | 69 ftm | 70 ftm | 71 ftm | 72 ftm | 73 ftm | 74 ftm | 75 ftm | 76 ftm | 77 ftm | 78 ftm | 79 ftm | 80 ftm | 81 ftm | 82 ftm | 83 ftm | 84 ftm | 85 ftm | 86 ftm | 87 ftm | 88 ftm | 89 ftm | 90 ftm | 91 ftm | 92 ftm | 93 ftm | 94 ftm | 95 ftm | 96 ftm | 97 ftm | 98 ftm | 99 ftm | 100 ftm |
picometer | 1 828 800 000 000 pm | 3 657 600 000 000 pm | 5 486 400 000 000 pm | 7 315 200 000 000 pm | 9 144 000 000 000 pm | 10 972 800 000 000 pm | 12 801 600 000 000 pm | 14 630 400 000 000 pm | 16 459 200 000 000 pm | 18 288 000 000 000 pm | 20 116 800 000 000 pm | 21 945 600 000 000 pm | 23 774 400 000 000 pm | 25 603 200 000 000 pm | 27 432 000 000 000 pm | 29 260 800 000 000 pm | 31 089 600 000 000 pm | 32 918 400 000 000 pm | 34 747 200 000 000 pm | 36 576 000 000 000 pm | 38 404 800 000 000 pm | 40 233 600 000 000 pm | 42 062 400 000 000 pm | 43 891 200 000 000 pm | 45 720 000 000 000 pm | 47 548 800 000 000 pm | 49 377 600 000 000 pm | 51 206 400 000 000 pm | 53 035 200 000 000 pm | 54 864 000 000 000 pm | 56 692 800 000 000 pm | 58 521 600 000 000 pm | 60 350 400 000 000 pm | 62 179 200 000 000 pm | 64 008 000 000 000 pm | 65 836 800 000 000 pm | 67 665 600 000 000 pm | 69 494 400 000 000 pm | 71 323 200 000 000 pm | 73 152 000 000 000 pm | 74 980 800 000 000 pm | 76 809 600 000 000 pm | 78 638 400 000 000 pm | 80 467 200 000 000 pm | 82 296 000 000 000 pm | 84 124 800 000 000 pm | 85 953 600 000 000 pm | 87 782 400 000 000 pm | 89 611 200 000 000 pm | 91 440 000 000 000 pm | 93 268 800 000 000 pm | 95 097 600 000 000 pm | 96 926 400 000 000 pm | 98 755 200 000 000 pm | 1.00584 × 1014 pm | 1.024128 × 1014 pm | 1.042416 × 1014 pm | 1.060704 × 1014 pm | 1.078992 × 1014 pm | 1.09728 × 1014 pm | 1.115568 × 1014 pm | 1.133856 × 1014 pm | 1.152144 × 1014 pm | 1.170432 × 1014 pm | 1.18872 × 1014 pm | 1.207008 × 1014 pm | 1.225296 × 1014 pm | 1.243584 × 1014 pm | 1.261872 × 1014 pm | 1.28016 × 1014 pm | 1.298448 × 1014 pm | 1.316736 × 1014 pm | 1.335024 × 1014 pm | 1.353312 × 1014 pm | 1.3716 × 1014 pm | 1.389888 × 1014 pm | 1.408176 × 1014 pm | 1.426464 × 1014 pm | 1.444752 × 1014 pm | 1.46304 × 1014 pm | 1.481328 × 1014 pm | 1.499616 × 1014 pm | 1.517904 × 1014 pm | 1.536192 × 1014 pm | 1.55448 × 1014 pm | 1.572768 × 1014 pm | 1.591056 × 1014 pm | 1.609344 × 1014 pm | 1.627632 × 1014 pm | 1.64592 × 1014 pm | 1.664208 × 1014 pm | 1.682496 × 1014 pm | 1.700784 × 1014 pm | 1.719072 × 1014 pm | 1.73736 × 1014 pm | 1.755648 × 1014 pm | 1.773936 × 1014 pm | 1.792224 × 1014 pm | 1.810512 × 1014 pm | 1.8288 × 1014 pm |
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres), used especially for measuring the depth of water.
There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around 5–5 1⁄2 feet.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
fathom | ftm | ≡ 6 ft | = 1.8288 m | Imperial/US |
fathoms | picometers | fathoms | picometers |
---|---|---|---|
1 | = 1828800000000 | 4 | = 7315200000000 |
1.5 | = 2743200000000 | 4.5 | = 8229600000000 |
2 | = 3657600000000 | 5 | = 9144000000000 |
2.5 | = 4572000000000 | 5.5 | = 10058400000000 |
3 | = 5486400000000 | 6 | = 10972800000000 |
The picometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the metric system, equal to 1×10−12 m, or one trillionth ( 1 / 1000000000000 ) of a metre, which is the SI base unit of length.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
picometer | pm | ≡ 1×10-12 m | ≡ 1×10-12 m | Metric system SI |
picometers | fathoms | picometers | fathoms |
---|---|---|---|
1 | = 5.4680664916885E-13 | 4 | = 2.1872265966754E-12 |
1.5 | = 8.2020997375328E-13 | 4.5 | = 2.4606299212598E-12 |
2 | = 1.0936132983377E-12 | 5 | = 2.7340332458443E-12 |
2.5 | = 1.3670166229221E-12 | 5.5 | = 3.0074365704287E-12 |
3 | = 1.6404199475066E-12 | 6 | = 3.2808398950131E-12 |
fathoms | picometers |
---|---|
1 | = 1 828 800 000 000 |
5.4680664916885 × 10-13 | = 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 …) |