Fathom to Inch Converter
Length · unit-converter
Convert Fathom to Inch with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use SI-based definitions (international yard, nautical mile, etc.).
Calculator
From: Fathom (fathom)
To: Inch (in)
About Fathom
The fathom is an imperial/nautical depth unit equal to 6 feet (1.8288 meters). It is common in marine contexts and charted water depths.
About Inch
The inch is an imperial and US customary unit equal to exactly 0.0254 meters. Twelve inches equal one feet; it is used for screen sizes, tools, and fine measurements.
How to convert fathoms to inches
1 fathom is equal to 72 inch:
1 fathom = (1.8288 m ÷ 0.0254 m) in = 72 in
Each fathom is defined as 1.8288 m and each inch as 0.0254 m, so one fathom equals 1.8288 ÷ 0.0254 in = 72 in.
Let d(fathom) be the numeric value of the same length measured in Fathom (fathom), and d(in) the value in Inch (in). Then:
d(in) = d(fathom) × (1.8288 / 0.0254)
Equivalently, divide by how many fathom fit into one in (meters per in divided by meters per fathom):
d(in) = d(fathom) ÷ 0.01388888888889
Or: inch = fathom ÷ 0.01388888888889
Examples
Example #1: Convert 20 fathom to inch
20 fathom = 20 fathom × (1.8288/0.0254) in = 1440 in
20 fathom = 20 fathom ÷ 0.01388888888889 = 1440 in
Example #2: Convert 50 fathom to inch
50 fathom = 50 fathom × (1.8288/0.0254) in = 3600 in
50 fathom = 50 fathom ÷ 0.01388888888889 = 3600 in
Summary
To convert Fathom to Inch, multiply the value in fathom by the ratio of meters per fathom divided by meters per in. Equivalently: value_in = value_fathom × (1.8288 / 0.0254). Numerically, 1 fathom equals 72 in.
Relationship context
Both units belong to US customary / imperial length. Conversions often use simple ratios (for example inches and feet), while miles relate to yards and feet through fixed definitions. The numeric factor used here is traceable to the international inch (0.0254 m) and related definitions.
Conversion tables
| Fathom (fathom) | Inch (in) |
|---|---|
| 0.1 | 7.2 |
| 1 | 72 |
| 2 | 144 |
| 3 | 216 |
| 4 | 288 |
| 5 | 360 |
| 6 | 432 |
| 7 | 504 |
| 8 | 576 |
| 9 | 648 |
| Fathom (fathom) | Inch (in) |
|---|---|
| 10 | 720 |
| 20 | 1,440 |
| 30 | 2,160 |
| 40 | 2,880 |
| 50 | 3,600 |
| 60 | 4,320 |
| 70 | 5,040 |
| 80 | 5,760 |
| 90 | 6,480 |
| 100 | 7,200 |