Conversion from Sea mile (NM) to Fathom (fth) and vice versa

Updated on by Stefan Banse

Here you can convert the Unit of length Sea mile into the unit Fathom and vice versa you can convert Fathom into Sea mile. By clicking the "Swap units" icon, you will always obtain the desired conversion in the calculation result, i.e., NM to fth or fth to NM. With the following calculator you can also calculate any other Unit of length.

Info about "Sea mile"

The sea mile or nautical mile is a unit of length frequently used in shipping and aviation. It was originally intended to measure 1/60 degree of latitude. Later, the nautical mile was defined accurately as 1,852.0 m.

The nautical mile is used as a unit of length in maritime navigation in an unified international way, unlike measuring distances on land, which uses two different units of length depending on the region, namely kilometer and mile.

Info about "Fathom"

The fathom or thread is defined as the distance between the outstretched arms of an adult male and was defined as 6 feet (1.8288 meters).

The name is derived from the Old English word "fæðm" , which is related to the Danish word "favn". Its meaning is the same as "outstretched arms". In English speaking navigation, the fathom is often used as a unit of length to indicate depth.

Basis for conversion Sea mile (NM) to Fathom (fth)

The abbreviation for the "Unit of length Sea mile" is NM. The abbreviation for the "Unit of length Fathom" is fth.

Formula for the conversion of Sea mile (NM) to Fathom (fth)

The calculation from Sea mile to Fathom shall be made using the following conversion formula:

 Conversion formula Sea mile to Fathom 

Determine the number of Fathom from Sea mile

Sea mile × 1012.6859142607


Formula for the conversion of Fathom (fth) to Sea mile (NM)

The calculation from Fathom to Sea mile shall be made using the following conversion formula:

 Conversion formula Fathom to Sea mile 

Determine the number of Sea mile from Fathom

Fathom × 0.00098747300215983


Overview table: How many Sea mile are how many Fathom?

Sea mile NMFathom fth
0.01 NM => 10.12685 fth
0.02 NM => 20.25371 fth
0.03 NM => 30.38057 fth
0.04 NM => 40.50743 fth
0.05 NM => 50.63429 fth
0.06 NM => 60.76115 fth
0.07 NM => 70.88801 fth
0.08 NM => 81.01487 fth
0.09 NM => 91.14173 fth
0.10 NM => 101.26859 fth
0.20 NM => 202.53718 fth
0.30 NM => 303.80577 fth
0.40 NM => 405.07436 fth
0.50 NM => 506.34295 fth
0.60 NM => 607.61154 fth
0.70 NM => 708.88014 fth
0.80 NM => 810.14873 fth
0.90 NM => 911.41732 fth
1 NM => 1 012.68591 fth
2 NM => 2 025.37182 fth
3 NM => 3 038.05774 fth
4 NM => 4 050.74365 fth
5 NM => 5 063.42957 fth
6 NM => 6 076.11548 fth
7 NM => 7 088.80140 fth
8 NM => 8 101.48731 fth
9 NM => 9 114.17322 fth
10 NM => 10 126.85914 fth
20 NM => 20 253.71828 fth
30 NM => 30 380.57742 fth
40 NM => 40 507.43657 fth
50 NM => 50 634.29571 fth
60 NM => 60 761.15485 fth
70 NM => 70 888.01399 fth
80 NM => 81 014.87314 fth
90 NM => 91 141.73228 fth
100 NM => 101 268.59142 fth
200 NM => 202 537.18285 fth
300 NM => 303 805.77427 fth
400 NM => 405 074.36570 fth
500 NM => 506 342.95713 fth
600 NM => 607 611.54855 fth
700 NM => 708 880.13998 fth
800 NM => 810 148.73140 fth
900 NM => 911 417.32283 fth
1 000 NM => 1 012 685.91426 fth

Overview table: How many Fathom are how many Sea mile?

Fathom fthSea mile NM
0.01 fth => 0.00001 NM
0.02 fth => 0.00002 NM
0.03 fth => 0.00003 NM
0.04 fth => 0.00003 NM
0.05 fth => 0.00004 NM
0.06 fth => 0.00005 NM
0.07 fth => 0.00006 NM
0.08 fth => 0.00007 NM
0.09 fth => 0.00008 NM
0.10 fth => 0.00009 NM
0.20 fth => 0.00019 NM
0.30 fth => 0.00029 NM
0.40 fth => 0.00039 NM
0.50 fth => 0.00049 NM
0.60 fth => 0.00059 NM
0.70 fth => 0.00069 NM
0.80 fth => 0.00079 NM
0.90 fth => 0.00088 NM
1 fth => 0.00098 NM
2 fth => 0.00197 NM
3 fth => 0.00296 NM
4 fth => 0.00395 NM
5 fth => 0.00493 NM
6 fth => 0.00592 NM
7 fth => 0.00691 NM
8 fth => 0.00790 NM
9 fth => 0.00888 NM
10 fth => 0.00987 NM
20 fth => 0.01974 NM
30 fth => 0.02962 NM
40 fth => 0.03949 NM
50 fth => 0.04937 NM
60 fth => 0.05924 NM
70 fth => 0.06912 NM
80 fth => 0.07899 NM
90 fth => 0.08887 NM
100 fth => 0.09874 NM
200 fth => 0.19749 NM
300 fth => 0.29624 NM
400 fth => 0.39498 NM
500 fth => 0.49373 NM
600 fth => 0.59248 NM
700 fth => 0.69123 NM
800 fth => 0.78997 NM
900 fth => 0.88872 NM
1 000 fth => 0.98747 NM

Source information

As source for the information in the "Units of length" category, we have used in particular:

Last update on November 22, 2020

The last changes in the "Units of length" category were implemented by Stefan Banse on November 22, 2020. The main changes were:

  • November 5, 2020: Publication of the Length converter
  • Editorial revision of all texts in this category