Marine & NauticalFathoms to Feet

Fathoms to Feet

Snapshot

1 fathom equals 6 feet. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

  • Reference basis: This converter uses the fixed marine length relationship 1 fathom = 6 ft.
  • Example: For 10 fathoms, the result is 60 feet with the same exact factor.
  • Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Interactive conversion

Converter Calculator

6 Feet (ft)

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Machine access

Available to apps and AI agents

Fathoms to Feet can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.

Machine-readable identifiers

Conversion family
marine
Source unit
fathoms
Target unit
feet

The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "marine",
  "value": 1,
  "from": "fathoms",
  "to": "feet"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "marine",
    "value": 1,
    "from": "fathoms",
    "to": "feet",
    "result": {
      "raw": 6,
      "display": "6"
    },
    "canonicalPath": "/marine/fathoms-to-feet/"
  }
}
Full API documentation

Explanation

One fathom equals exactly 6 feet. In marine charts and depth soundings, a water depth of one fathom is therefore six feet; the same fixed relationship gives 2 fathoms as 12 feet, 10 fathoms as 60 feet, and 20 fathoms as 120 feet.

Use this converter for chart depths, draft measurements, and nautical distance references. Because a fathom is fixed at six feet, the conversion is exact.

Method & Marine Length Basis

  • Unit basis: one fathom is treated as exactly 6 feet.
  • Applied factor: feet = fathoms x 6.
  • Consistency rule: snapshot, calculator, FAQ, and common values all use the same fathom-to-foot factor.

Common Conversion Values

Fathom (ftm)Feet (ft)
1 6
2 12
5 30
10 60
20 120
50 300
100 600

Questions & answers

Frequently Asked Questions

How many feet are in a fathom?

1 fathom equals 6 feet.

How many feet are in 2 fathoms?

2 fathoms equal 12 feet.

How deep is one fathom in feet?

When fathom is used for water depth, one fathom is exactly 6 feet.

How much is a fathom in feet?

A fathom is 6 feet.

How many feet are in 10 fathoms?

10 fathoms equal 60 feet.

Is fathoms to feet exact?

Yes. This converter uses the fixed relationship 1 fathom = 6 feet.