Convert Fathom to Centimeter (ftm → cm)

Converting fathoms to centimeters is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in fathoms

   Start with the number of fathoms (ftm) you want to convert.
2. 2
   Multiply by 182.88

   The conversion factor from ftm to cm is 182.88. Multiply your value by this number.
3. 3
   Read the result in centimeters

   The result is your value in centimeters (cm).

Multiply the value in fathoms by 182.88. For the reverse direction, multiply by 0.005468.

• ✓1 fathom = 2 yards = 6 feet = 1.8288 m.
• ✓Modern charts use metres internationally; fathoms are mostly historical.
• ✓The word "fathom" comes from Old English for "outstretched arms" — originally the span of an adult's arms.

• ✗Reading a modern chart that uses metres as if it were fathoms — a factor-of-1.83 depth error.
• ✗Confusing fathoms with feet on mixed-unit charts.
• ✗Assuming all US charts still use fathoms — NOAA has largely migrated to metres.

What is the Fathom?

The fathom equals exactly 1.8288 meters or 6 feet and is the traditional marine depth unit. The word derives from the Old English 'fæðm,' meaning the span of outstretched arms — historically the distance a sailor could measure rope by stretching it from fingertip to fingertip. Used since antiquity for sounding water depth (lowering a weighted line and counting fathom marks), the fathom remains common in nautical charts, diving manuals, and marine literature. Famous from Mark Twain's pen name (a riverboat lead's call meaning 'safe water,' 2 fathoms or 12 feet) and Shakespeare's 'full fathom five,' the unit retains cultural resonance. Modern oceanographic science prefers the meter, but the fathom persists in fishing, recreational diving, and historical maritime contexts. The fathom relates to the foot (1 fathom = 6 ft) and the yard (1 fathom = 2 yd).

• Water depth on older US nautical charts
• Maritime literature and historical navigation
• Sport diving and scuba depth references in the US

What is the Centimeter?

The centimeter equals one hundredth of a meter (0.01 m) and is the everyday metric unit for body measurements, clothing, furniture, and household items. It bridges the gap between the meter (too large for personal items) and the millimeter (too small for clothing). The centimeter is widely used in countries with metric systems for height (a person is 160–185 cm tall), paper sizes (A4 is 21 × 29.7 cm), and medical measurements. Although not strictly an SI base unit, it is one of the most common units in daily metric usage. The centimeter relates to the inch (1 cm ≈ 0.394 in) and to the millimeter (1 cm = 10 mm). It became standard with the metric system's adoption across continental Europe in the 19th century.

• Height and body measurements in medical records
• Ready-to-wear clothing sizes in Europe and Asia
• Furniture and interior design dimensions