---
title: "Fathoms to Inches — ftm to in converter"
description: "1 fathom = 72 inches. Convert fathoms to inches with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/fathoms-to-inches/
site: "At One Place"
---

# Fathoms to inches

**1 fathom in inches: 1 ftm = 72 in**

in = ftm × 72

To convert fathoms to inches, multiply by 72. The table below gives the values people look up most often, and the converter works for any number.

## Fathoms to inches table

*Common fathom values converted to inches.*

| Fathoms | Inches |
| --- | --- |
| 1 ftm | 72 |
| 2 ftm | 144 |
| 3 ftm | 216 |
| 4 ftm | 288 |
| 5 ftm | 360 |
| 10 ftm | 720 |
| 15 ftm | 1,080 |
| 20 ftm | 1,440 |
| 25 ftm | 1,800 |
| 30 ftm | 2,160 |
| 40 ftm | 2,880 |
| 50 ftm | 3,600 |
| 75 ftm | 5,400 |
| 100 ftm | 7,200 |
| 250 ftm | 18,000 |
| 500 ftm | 36,000 |
| 1,000 ftm | 72,000 |

## How the conversion works

The relationship is in = ftm × 72. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### How many inches are in one fathom?

One fathom equals 72 inches. in = ftm × 72.

### How do you convert fathoms to inches?

Use in = ftm × 72. So 10 ftm is 720 in.

### How many fathoms are in one inch?

One inch equals 0.013889 fathoms, which is the reverse of the conversion above.

## Related pages

- [Inches to Fathoms](https://atoneplace.net/convert/inches-to-fathoms/)
- [Fathoms to Meters](https://atoneplace.net/convert/fathoms-to-meters/)
- [Fathoms to Kilometers](https://atoneplace.net/convert/fathoms-to-km/)
- [Fathoms to Centimeters](https://atoneplace.net/convert/fathoms-to-cm/)
- [Fathoms to Millimeters](https://atoneplace.net/convert/fathoms-to-mm/)
- [Fathoms to Miles](https://atoneplace.net/convert/fathoms-to-miles/)
- [Fathoms to Yards](https://atoneplace.net/convert/fathoms-to-yards/)
- [Fathoms to Feet](https://atoneplace.net/convert/fathoms-to-feet/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)