Feet to Fathoms
Snapshot
1 Foot equals 0.166667 Fathoms. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.
- Reference basis: This result uses fixed sounding-depth definitions for the active charting route.
- Example: For 2 Foot, the result equals 0.333333 Fathoms.
- 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.
Converter Calculator
0.166667 Fathoms (ftm)
SwitchExplanation
Formula: Fathoms = Foot × 0.166667. Why: sounding and chart-depth units use fixed length definitions, so the calculator moves through one consistent depth basis before applying the target unit.
Feet (ft): an imperial length unit often used for sounding, draft, and depth reporting.
Fathoms (ftm): a marine length unit traditionally used for depth and sometimes short nautical distance references.
This route is useful when comparing sounding and draft-related values across meters, fathoms, feet, and yards in charting, surveying, and onboard operations.
This conversion is purely multiplicative because both units reduce through one fixed marine reference basis for the active family, with no offset.
Common Conversion Values
| Foot (ft) | Fathoms (ftm) |
|---|---|
| 1 | 0.166667 |
| 2 | 0.333333 |
| 5 | 0.833333 |
| 10 | 1.666667 |
| 20 | 3.333333 |
| 50 | 8.333333 |
| 100 | 16.666667 |
Frequently Asked Questions
How many fathoms are in 1 foot?
This route uses a fixed factor, so 1 foot equals 0.166666666667 fathoms.
What is the reverse conversion for Feet to Fathoms?
Use the Fathoms to Feet page to reverse the same sounding-depth relationship for chart and draft work.
Can I use decimal feet values?
Yes. Decimal feet values are supported for sounding, draft, and chart-depth work.