A fathom is six feet.
Fathoms to Megameters Converter — ftm to Mm
Convert Fathom (ftm) to Megameter (Mm) using the exact conversion factor (1 fathom = 0.0000018288 megameter). See the formula, worked examples, and conversion table.
Fathoms to Megameters converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
Megameter is 1000000 meter units.
Result = input x 1.8288 / 1e+6.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Fathoms to Megameters
Fathom and Megameter both measure length. Specifically: A fathom is six feet, and megameter is 1000000 meter units.
Formula
megameters = fathoms × 0.0000018288
This factor comes from each unit's defined relationship to the category's base unit: 1 fathom equals 1.8288 base units, and 1 megameter equals 1000000 base units, so dividing one by the other gives the direct fathom-to-megameter factor of 0.0000018288.
Simple example
1 ftm × 0.0000018288 = 0.0000018288 Mm
1 fathom = 0.0000018288 megameters.
Real-world example
10 ftm × 0.0000018288 = 0.000018288 Mm
10 fathoms = 0.000018288 megameters.
Conversion table
| Fathom (ftm) | Megameter (Mm) |
|---|---|
| 1 ftm | 0.0000018288 Mm |
| 5 ftm | 0.000009144 Mm |
| 10 ftm | 0.000018288 Mm |
| 21.0975 ftm | 0.0000385831 Mm |
| 42.195 ftm | 0.0000771662 Mm |
| 100 ftm | 0.00018288 Mm |
Reverse conversion: Megameter to Fathom
0.0000018288 Mm × 546806.6492 = 1 ftm
0.0000018288 megameters = 1 fathom.
fathoms = megameters × 546806.649169
For a page dedicated to this direction, see Megameter to Fathom.
Understanding the Fathom (ftm)
A fathom is six feet.
Understanding the Megameter (Mm)
Megameter is 1000000 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megameters are in 1 fathom?
1 fathom equals 0.0000018288 megameters, using the exact defined conversion factor rather than an estimate.
How do I convert fathom to megameter?
Multiply the fathom value by 0.0000018288. The converter above does this instantly to whatever precision you set.
How do I convert megameter back to fathom?
Use the reverse factor: 1 megameter equals 546,806.6492 fathoms. You can also use the swap control in the converter above to flip the direction instantly.
What is a fathom?
Fathom (ftm) is a unit of length.
What is a megameter?
Megameter (Mm) is a unit of length.
Is the fathom to megameter conversion exact?
Yes. Both fathom and megameter are defined by fixed standards rather than physical artifacts, so the factor of 0.0000018288 used above is exact to as many digits as you choose to display.