One meter is exactly 0.5468066492 fathoms, so converting meters to fathoms is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
The SI base unit of length, defined by the distance light travels in 1/299,792,458 of a second. Six feet, the traditional depth unit on marine charts.
The mil and the millimetre are not the same thing and are out by a factor of about forty. A mil is one thousandth of an inch — 0.0254 mm — and a spec sheet that quotes film thickness in mils means the small unit. British drawings write the same size as "thou". Two tables follow: rounded steps for quick lookup, and a set of real reference quantities converted into fathoms, which is usually more useful than the bare number.
The formula
meters- The amount you are converting, in meters
0.546806649169- The exact number of fathoms in one meter
fathoms- The converted result
How it works, step by step
- Enter the value in meters.
- It is multiplied by 0.546806649169, the exact factor between the two units.
- The answer is shown in fathoms, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A credit card’s long edge: 0.0856 m in fathoms
A credit card’s long edge comes to about 0.0856 m. Multiplying by the factor: 0.0856 × 0.546807 = 0.0468066 ftm. Dividing the answer back by 0.546807 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
The Eiffel Tower: 330 m in fathoms
At 330 m (the eiffel tower), the same quantity in fathoms is 330 × 0.546807 = 180.446 ftm. One meter is 0.546807 fathoms, so the numbers shrink as expected.
How to read your score
Frequently asked questions
How many fathoms are in one meter?
Exactly 0.546806649169. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert meters to fathoms?
fathoms = meters × 0.546806649169. Reversed, meters = fathoms ÷ 0.546806649169, which is the same as multiplying by 1.8288.
Which is the bigger unit, the meter or the fathom?
The fathom. One meter is only 0.546807 of a fathom, so it takes 1.8288 meters to make one fathom.
What does this quantity actually measure?
Both units measure length. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a meter?
The SI base unit of length, defined by the distance light travels in 1/299,792,458 of a second.
What is a fathom?
Six feet, the traditional depth unit on marine charts.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Is there a quick way to do m to ftm in my head?
Plenty of people do this in their head: divide by 1.8 instead of using the exact factor 0.5468066492. At 100 that shortcut gives 55.555556 fathoms, off by 0.8749 fathoms or about 1.60%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Meters to fathoms reference tables
| Meters | Fathoms |
|---|---|
| 0.5 m | 0.273403 ftm |
| 1 m | 0.546807 ftm |
| 2 m | 1.09361 ftm |
| 3 m | 1.64042 ftm |
| 5 m | 2.73403 ftm |
| 10 m | 5.46807 ftm |
| 20 m | 10.9361 ftm |
| 25 m | 13.6702 ftm |
| 50 m | 27.3403 ftm |
| 75 m | 41.0105 ftm |
| 100 m | 54.6807 ftm |
| 250 m | 136.702 ftm |
| 500 m | 273.403 ftm |
| 1000 m | 546.807 ftm |
| 5000 m | 2734.03 ftm |
Exact factor: 1 meter = 0.546806649169 fathoms.
| Quantity | m | ftm |
|---|---|---|
| A credit card’s long edge | 0.0856 m | 0.04681 ftm |
| A door height | 2.032 m | 1.111 ftm |
| An Olympic pool | 50 m | 27.34 ftm |
| The Eiffel Tower | 330 m | 180.4 ftm |
| A marathon | 4.22e+04 m | 2.307e+04 ftm |
| Earth’s diameter | 1.274e+07 m | 6.967e+06 ftm |
Published reference values, converted with the same factor this page uses.