Convert Centimeter to Fathom
Convert centimeters to fathoms instantly. 1 centimeter = 0.0054680665 fathom — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Fathom to Centimeter converter for the reverse conversion.
Units explained
Centimeter
A centimeter is a metric unit of length equal to one hundredth of a meter (1/100 m). It is one of the most commonly used SI sub-units in daily life, especially for measuring small objects, body dimensions, paper sizes, and short distances.
The centimeter emerged from the French metric system established by the French Academy of Sciences in 1793. The metric system introduced decimal-based prefixes (milli-, centi-, deci-, deca-, hecto-, kilo-) to create proportional sub-units of the meter.
Centimeters are the standard unit for everyday measurement in nearly every country outside the United States. They are used for body height, clothing sizes, rainfall, paper formats (A4 is 21 × 29.7 cm), screen dimensions, and most consumer product specifications.
Developed in France during the late 18th century as part of the metric system designed by the French Academy of Sciences. Formally adopted in France in 1795 and ratified internationally through the Metre Convention signed in Paris in 1875.
Fathom
A fathom is an Imperial unit of length equal to 6 feet or exactly 1.8288 meters. It is used almost exclusively for measuring water depth in maritime contexts.
The fathom derives from the Old English word fæthm, meaning "the embracing arms" — the distance between the fingertips of a person's outstretched arms. Standardized at 6 feet in English maritime tradition.
Fathoms are used in nautical depth charts, scuba diving, oceanography, and maritime literature. Despite metrication efforts, fathoms remain common in English-language nautical charts and recreational diving.
Old English origin (predating 1066); standardized at 6 feet by English maritime tradition; fixed at 1.8288 m exactly via the 1959 International Yard and Pound Agreement.
Centimeter to Fathom conversion formula
The relationship between centimeters and fathoms:
To convert centimeters to fathoms, multiply the value in centimeters by 0.0054680665. To reverse, multiply fathoms by 182.88.
How to use this converter
Type a value into the calculator. The result in fathoms updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Fathom to Centimeter converter for the reverse direction.
Step-by-step: convert centimeters to fathoms
- Write down the value in centimeters (cm).
- Multiply that value by the factor 0.0054680665.
- The product is the equivalent value in fathoms (ftm).
- To reverse, multiply the fathom value by 182.88.
Worked examples
Example 1 — Convert 1 cm to ftm:
1 × 0.0054680665 = 0.0054680665 ftm
Example 2 — Convert 100 cm to ftm:
100 × 0.0054680665 = 0.5468066492 ftm
Real-world example — Furniture and large objects
A 72-centimeter piece of furniture converts to a value in fathoms that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.
72 cm × 0.0054680665 = 0.3937007874 ftm
Real-world example — Children's height milestones
A 150-centimeter-tall child measures a value in fathoms that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.
150 cm × 0.0054680665 = 0.8202099738 ftm
Real-world example — Body height conversion
You enter your height as 180 centimeters into an international job or visa application. The form then asks for the same value in fathoms — converting between these adjacent units is one of the most-used length conversions globally.
180 cm × 0.0054680665 = 0.9842519685 ftm
Centimeter to Fathom conversion table
Standard reference values for converting centimeters to fathoms:
| Centimeter [cm] | Fathom [ftm] |
|---|---|
| 0.01 | 5.468066e-5 |
| 0.1 | 0.0005468066 |
| 1 | 0.0054680665 |
| 2 | 0.010936133 |
| 3 | 0.0164041995 |
| 4 | 0.021872266 |
| 5 | 0.0273403325 |
| 10 | 0.0546806649 |
| 20 | 0.1093613298 |
| 30 | 0.1640419948 |
| 40 | 0.2187226597 |
| 50 | 0.2734033246 |
| 100 | 0.5468066492 |
| 500 | 2.7340332458 |
| 1000 | 5.4680664917 |
Frequently asked questions
How many fathoms is 1 centimeter?
How do I convert centimeters to fathoms?
How do I convert fathoms back to centimeters?
How many fathoms is 100 centimeters?
Popular length unit conversions
Convert Centimeter to other length units
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Metric / SI (17 units)
Imperial / US Customary (27 units)
Nautical (1 units)
Astronomical (9 units)
Atomic / Physics (6 units)
Typographic (3 units)
Sources & references
Conversion factor (1 cm = 0.0054680665 ftm) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.