Convert Fathom to Foot
1 fathom = 6 foot (ft). For example, 10 fathom = 60 foot and 100 fathom = 600 foot. Type any value below to convert fathom to foot both ways — it runs entirely in your browser.
Quick answer: Fathom to Foot
1 Fathom = 6 Foot (ftm → ft). To convert fathom to foot, multiply by 6. To convert foot to fathom, multiply by 0.1666667. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common fathom-to-foot questions.
How to convert Fathom to Foot
To convert fathom to foot, multiply the number of fathom by the conversion factor 6, because 1 ftm = 6 ft. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 ft = 0.1666667 ftm, so you divide by 6 (or multiply by 0.1666667) to turn foot back into fathom.
ft = ftm × 6 ·
ftm = ft × 0.1666667
- Write down the value you want to convert, in fathom.
- Multiply it by 6.
- The result is the same area/length/quantity expressed in foot.
Fathom to Foot — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 fathom is 30 foot because 5 ftm × 6 = 30 ft.
| Fathom | Calculation | Foot |
|---|---|---|
| 1 ftm | 1 ftm × 6 = 6 ft | 6 ft |
| 2 ftm | 2 ftm × 6 = 12 ft | 12 ft |
| 3 ftm | 3 ftm × 6 = 18 ft | 18 ft |
| 5 ftm | 5 ftm × 6 = 30 ft | 30 ft |
| 7 ftm | 7 ftm × 6 = 42 ft | 42 ft |
| 10 ftm | 10 ftm × 6 = 60 ft | 60 ft |
| 12 ftm | 12 ftm × 6 = 72 ft | 72 ft |
| 15 ftm | 15 ftm × 6 = 90 ft | 90 ft |
| 20 ftm | 20 ftm × 6 = 120 ft | 120 ft |
| 25 ftm | 25 ftm × 6 = 150 ft | 150 ft |
| 50 ftm | 50 ftm × 6 = 300 ft | 300 ft |
| 100 ftm | 100 ftm × 6 = 600 ft | 600 ft |
Common Fathom to Foot conversions
These are the fathom-to-foot values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 fathom = 6 foot
- 2 fathom = 12 foot
- 2.5 fathom = 15 foot
- 3 fathom = 18 foot
- 4 fathom = 24 foot
- 5 fathom = 30 foot
- 6 fathom = 36 foot
- 7 fathom = 42 foot
- 8 fathom = 48 foot
- 9 fathom = 54 foot
- 10 fathom = 60 foot
- 12 fathom = 72 foot
- 15 fathom = 90 foot
- 20 fathom = 120 foot
- 25 fathom = 150 foot
- 30 fathom = 180 foot
- 50 fathom = 300 foot
- 75 fathom = 450 foot
- 100 fathom = 600 foot
- 200 fathom = 1,200 foot
- 500 fathom = 3,000 foot
- 1000 fathom = 6,000 foot
Fathom to Foot conversion chart (both directions)
The chart below converts fathom to foot and foot to fathom side by side, so it works whichever way you need. 1 fathom = 6 foot, and 1 foot = 0.1666667 fathom.
| Fathom → Foot | Foot → Fathom |
|---|---|
| 0.25 ftm = 1.5 ft | 0.25 ft = 0.04166667 ftm |
| 0.5 ftm = 3 ft | 0.5 ft = 0.08333333 ftm |
| 1 ftm = 6 ft | 1 ft = 0.1666667 ftm |
| 2 ftm = 12 ft | 2 ft = 0.3333333 ftm |
| 3 ftm = 18 ft | 3 ft = 0.5 ftm |
| 4 ftm = 24 ft | 4 ft = 0.6666667 ftm |
| 5 ftm = 30 ft | 5 ft = 0.8333333 ftm |
| 6 ftm = 36 ft | 6 ft = 1 ftm |
| 7 ftm = 42 ft | 7 ft = 1.166667 ftm |
| 8 ftm = 48 ft | 8 ft = 1.333333 ftm |
| 9 ftm = 54 ft | 9 ft = 1.5 ftm |
| 10 ftm = 60 ft | 10 ft = 1.666667 ftm |
| 12 ftm = 72 ft | 12 ft = 2 ftm |
| 15 ftm = 90 ft | 15 ft = 2.5 ftm |
| 20 ftm = 120 ft | 20 ft = 3.333333 ftm |
| 25 ftm = 150 ft | 25 ft = 4.166667 ftm |
| 30 ftm = 180 ft | 30 ft = 5 ftm |
| 40 ftm = 240 ft | 40 ft = 6.666667 ftm |
| 50 ftm = 300 ft | 50 ft = 8.333333 ftm |
| 75 ftm = 450 ft | 75 ft = 12.5 ftm |
| 100 ftm = 600 ft | 100 ft = 16.66667 ftm |
| 150 ftm = 900 ft | 150 ft = 25 ftm |
| 200 ftm = 1,200 ft | 200 ft = 33.33333 ftm |
| 250 ftm = 1,500 ft | 250 ft = 41.66667 ftm |
| 500 ftm = 3,000 ft | 500 ft = 83.33333 ftm |
| 1000 ftm = 6,000 ft | 1000 ft = 166.6667 ftm |
Fathom vs Foot: which is bigger?
A fathom is the larger unit: one fathom equals 6 foots. Put another way, you need 6 foots to make a single fathom.
What is a Fathom? History, origin and usage
The fathom comes from the Old English faedm, meaning 'outstretched arms' or 'embrace', because it was originally the span of a large man's arms held wide, about six feet. The word's deeper roots mean 'to spread', and from around 1600 'to fathom' also came to mean to take soundings, and figuratively to understand something fully.
The fathom is the traditional unit for water depth in seafaring and still appears on many nautical charts, though metres are now the standard. Six feet make one fathom.
The phrase 'to fathom' a problem comes directly from sailors measuring depth with a knotted, weighted line. Mark Twain took his pen name from the riverboat leadsman's call 'mark twain', meaning two fathoms of safe water.
What is a Foot? History, origin and usage
The foot is one of the most ancient units, based on the length of a human foot, and appeared in the Greek, Roman, Chinese and English systems with values ranging from about 250 to 335 mm. The English foot was eventually fixed at 12 inches, and since the 1959 international agreement it equals exactly 0.3048 metres.
The foot is still used in the US and UK for human height, building dimensions and, worldwide, aviation altitudes, since pilots almost everywhere report altitude in feet. It divides into 12 inches, and three feet make a yard.
Aircraft altitudes are measured in feet even in fully metric countries, a legacy of aviation's English-speaking origins. Historically the foot's length differed not only between countries but sometimes between trades within a single city.
Convert 1 Fathom to other units
It can help to see a fathom next to the other units it is commonly compared with. One fathom (ftm) is equal to:
| 1 Fathom equals | Unit |
|---|---|
| 0.0018288 km | Kilometre |
| 1.8288 m | Metre |
| 18.288 dm | Decimetre |
| 182.88 cm | Centimetre |
| 1,828.8 mm | Millimetre |
| 1,828,800 µm | Micrometre |
| 0.001136364 mi | Mile |
| 2 yd | Yard |
| 6 ft | Foot |
| 72 in | Inch |
| 0.000987473 nmi | Nautical Mile |
| 0.009090909 fur | Furlong |
| 0.09090909 ch | Chain |
| 9.090909 li | Link |
| 0.3636364 rd | Rod |
| 0.3636364 pole | Pole |
| 18 hand | Hand |
| 8 span | Span |
| 16 finger | Finger |
| 4 cubit | Cubit |
| 0.3 rope | Rope |
| 1.00584 ken | Ken |
| 0.0003787879 lea | League |
| 5,184 pt | Point |
| 1.2225e-11 AU | Astronomical Unit |
| 1.933e-16 ly | Light-year |
| 0.18288 dam | Decametre |
| 0.018288 hm | Hectometre |
| 0.0003291577 nl | Nautical League |
Convert 1 Foot to other units
One foot (ft) is equal to:
| 1 Foot equals | Unit |
|---|---|
| 0.0003048 km | Kilometre |
| 0.3048 m | Metre |
| 3.048 dm | Decimetre |
| 30.48 cm | Centimetre |
| 304.8 mm | Millimetre |
| 304,800 µm | Micrometre |
| 0.0001893939 mi | Mile |
| 0.3333333 yd | Yard |
| 12 in | Inch |
| 0.0001645788 nmi | Nautical Mile |
| 0.001515152 fur | Furlong |
| 0.01515152 ch | Chain |
| 1.515152 li | Link |
| 0.06060606 rd | Rod |
| 0.06060606 pole | Pole |
| 0.1666667 ftm | Fathom |
| 3 hand | Hand |
| 1.333333 span | Span |
| 2.666667 finger | Finger |
| 0.6666667 cubit | Cubit |
| 0.05 rope | Rope |
| 0.16764 ken | Ken |
| 0.00006313131 lea | League |
| 864 pt | Point |
| 2.0375e-12 AU | Astronomical Unit |
| 3.2217e-17 ly | Light-year |
| 0.03048 dam | Decametre |
| 0.003048 hm | Hectometre |
| 0.00005485961 nl | Nautical League |
Tips for converting Fathom to Foot
- To go from fathom to foot, multiply by 6; to go back, divide by 6 (or multiply by 0.1666667).
- For a quick mental estimate, remember that 1 fathom ≈ 6 foot, so 10 fathom ≈ 60 foot.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Fathom to Foot converter
Type a number into the Fathom field and the equivalent in Foot appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Foot field to convert the other way (foot to fathom). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 ftm = 6 ft), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for fathom-to-foot conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
The metric units (km, m, cm, mm, µm) are exact by definition, and the imperial units (mile, yard, foot, inch, nautical mile) use their exact international values. Traditional units (hand, span, finger, cubit, rod/pole, link, rope, ken, league) are given at their commonly accepted standard sizes — historical local values sometimes differed, so confirm against a primary source before relying on them for legal or historical work.
Frequently asked questions
- How many foot are in 1 fathom?
- 1 fathom = 6 foot (ft). To convert any number of fathom to foot, multiply by 6.
- How do I convert fathom to foot?
- Multiply the number of fathom by 6. For example, 10 fathom = 10 × 6 = 60 foot, and 25 fathom = 150 foot.
- How many fathom are in 1 foot?
- 1 foot = 0.1666667 fathom. So to convert foot back to fathom, multiply by 0.1666667.
- What is the formula to convert fathom to foot?
- foot = fathom × 6. The reverse formula is fathom = foot × 0.1666667.
- How much is 100 fathom in foot?
- 100 fathom = 600 foot. (And 1000 fathom = 6,000 foot.)
- Which is bigger, a fathom or a foot?
- A fathom is larger: 1 fathom = 6 foot.
- Is this fathom to foot converter accurate?
- Yes — every value is computed from the exact 6 ft per ftm factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert foot to fathom too?
- Yes. The converter works both ways — enter a value in either field. 1 foot = 0.1666667 fathom.