Convert Centimeter to Nautical Mile
Convert centimeters to nautical miles instantly. 1 centimeter = 5.399568e-6 nautical mile — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Nautical Mile 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.
Nautical Mile
A nautical mile is a unit of length equal to exactly 1,852 meters, defined as one minute of arc along any meridian of the Earth. It is the standard unit for sea and air navigation worldwide.
Originally defined as one minute of arc along a great circle of the Earth, making it convenient for celestial navigation. The International Hydrographic Organization (IHO) standardized the value at exactly 1,852 meters in 1929.
Nautical miles are used in maritime navigation, aviation, and international law (territorial waters, exclusive economic zones). Speed in nautical miles per hour is called a knot. The nautical mile is distinct from the statute (land) mile.
Defined for celestial navigation since antiquity; standardized to 1,852 m exactly by the IHO in 1929; adopted by the International Civil Aviation Organization (ICAO) for aviation use.
Centimeter to Nautical Mile conversion formula
The relationship between centimeters and nautical miles:
To convert centimeters to nautical miles, multiply the value in centimeters by 5.399568e-6. To reverse, multiply nautical miles by 185200.
How to use this converter
Type a value into the calculator. The result in nautical miles updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Nautical Mile to Centimeter converter for the reverse direction.
Step-by-step: convert centimeters to nautical miles
- Write down the value in centimeters (cm).
- Multiply that value by the factor 5.399568e-6.
- The product is the equivalent value in nautical miles (nmi).
- To reverse, multiply the nautical mile value by 185200.
Worked examples
Example 1 — Convert 1 cm to nmi:
1 × 5.399568e-6 = 5.399568e-6 nmi
Example 2 — Convert 100 cm to nmi:
100 × 5.399568e-6 = 0.0005399568 nmi
Real-world example — Architectural to geographic scale
A 100,000-centimeter measurement equals one nautical mile. The five-order-of-magnitude scale change comes up in mapping work where architectural site plans must be related to road-network maps.
100000 cm × 5.399568e-6 = 0.5399568035 nmi
Real-world example — Small to geographic-scale
100,000 centimeters equals one nautical mile — a useful conversion when small-scale survey diagrams must be related to road-network distances on a different map.
100000 cm × 5.399568e-6 = 0.5399568035 nmi
Centimeter to Nautical Mile conversion table
Standard reference values for converting centimeters to nautical miles:
| Centimeter [cm] | Nautical Mile [nmi] |
|---|---|
| 0.01 | 5.399568e-8 |
| 0.1 | 5.399568e-7 |
| 1 | 5.399568e-6 |
| 2 | 1.079914e-5 |
| 3 | 1.61987e-5 |
| 4 | 2.159827e-5 |
| 5 | 2.699784e-5 |
| 10 | 5.399568e-5 |
| 20 | 0.0001079914 |
| 30 | 0.000161987 |
| 40 | 0.0002159827 |
| 50 | 0.0002699784 |
| 100 | 0.0005399568 |
| 500 | 0.002699784 |
| 1000 | 0.005399568 |
Frequently asked questions
How many nautical miles is 1 centimeter?
How do I convert centimeters to nautical miles?
How do I convert nautical miles back to centimeters?
How many nautical miles is 100 centimeters?
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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 = 5.399568e-6 nmi) 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.