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Length and Area

ftmtokm

Convert fathoms (ftm) to kilometres (km).

Factor1 ftm = 0.0018288 km

Converter

ftm

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1.8288km

Rendered to 6 significant figures.

Formula

Formula
km = ftm × 0.0018288

Multiply any value in fathoms by 0.0018288 to obtain the value in kilometres.

Worked example

Convert 1000 ftm to km.

  1. 01Start with 1000 ftm.
  2. 02Multiply by the conversion factor: 1000 × 0.0018288 = 1.8288 km.
Result1000 ftm = 1.8288 km

Conversion table

ftmkm
10.0018288
20.0036576
50.009144
100.018288
200.036576
500.09144
1000.18288
2000.36576
5000.9144
10001.8288

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from ftm to km?
1 ftm equals 0.0018288 km. To convert, multiply the value in fathoms by 0.0018288.
How do I convert 1 ftm to km?
1 ftm = 0.0018288 km. For any value, multiply by 0.0018288.
How do I convert km back to ftm?
Divide by the same factor — or equivalently, multiply by 546.8066. So 1 km = 546.807 ftm.
When would I need to convert fathom to kilometre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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