Convert Inch to Cable
Convert inches to cables instantly. 1 inch = 0.000137149 cable — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Cable to Inch converter for the reverse conversion.
Units explained
Inch
An inch is an Imperial and US customary unit of length defined since 1959 as exactly 25.4 millimeters (0.0254 meters). It is still the standard small unit of length in the United States, the United Kingdom (informally), and a few other countries.
The inch derives from the Roman uncia (one-twelfth of a foot) and survived through Anglo-Saxon and medieval English measurement systems. Various definitions persisted regionally until the 1959 International Yard and Pound Agreement standardized the inch globally as exactly 25.4 mm.
Inches are used in the US and UK for body height, screen sizes (TVs, monitors, phones), tire sizes, plumbing, lumber, paper sizes (US Letter is 8.5 × 11 in), and most consumer product specifications in the United States.
Anglo-Saxon origin (predating 1066); standardized to 25.4 mm exactly by the International Yard and Pound Agreement of 1959, signed by the US, UK, Canada, Australia, New Zealand, and South Africa.
Cable
A cable is a nautical unit of length equal to one tenth of a nautical mile (exactly 185.2 m). It is used in maritime navigation for short-distance descriptions.
The cable derives from the historical length of a ship's anchor cable. Standardised at one tenth of an international nautical mile in 1929.
Cables are used in modern maritime navigation when describing short distances between vessels, anchoring depths, and harbor manoeuvres. Common in naval and yachting contexts.
Standardised at 1/10 nautical mile by the International Hydrographic Organization in 1929.
Inch to Cable conversion formula
The relationship between inches and cables:
To convert inches to cables, multiply the value in inches by 0.000137149. To reverse, multiply cables by 7291.3385826772.
How to use this converter
Type a value into the calculator. The result in cables updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Cable to Inch converter for the reverse direction.
Step-by-step: convert inches to cables
- Write down the value in inches (in).
- Multiply that value by the factor 0.000137149.
- The product is the equivalent value in cables (cable).
- To reverse, multiply the cable value by 7291.3385826772.
Worked examples
Example 1 — Convert 1 in to cable:
1 × 0.000137149 = 0.000137149 cable
Example 2 — Convert 100 in to cable:
100 × 0.000137149 = 0.0137149028 cable
Real-world example — Ruler-scale measurements
A 30-inch school ruler converts cleanly to cables — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 in × 0.000137149 = 0.0041144708 cable
Real-world example — Hardware-scale dimensions
A 10-inch fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between inches and cables daily when mixing metric and imperial tools.
10 in × 0.000137149 = 0.0013714903 cable
Real-world example — Postcard and small-object dimensions
A postcard is about 5 inches wide. Converting to cables is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 in × 0.000137149 = 0.0006857451 cable
Inch to Cable conversion table
Standard reference values for converting inches to cables:
| Inch [in] | Cable [cable] |
|---|---|
| 0.01 | 1.37149e-6 |
| 0.1 | 1.37149e-5 |
| 1 | 0.000137149 |
| 2 | 0.0002742981 |
| 3 | 0.0004114471 |
| 4 | 0.0005485961 |
| 5 | 0.0006857451 |
| 10 | 0.0013714903 |
| 20 | 0.0027429806 |
| 30 | 0.0041144708 |
| 40 | 0.0054859611 |
| 50 | 0.0068574514 |
| 100 | 0.0137149028 |
| 500 | 0.068574514 |
| 1000 | 0.1371490281 |
Frequently asked questions
How many cables is 1 inch?
How do I convert inches to cables?
How do I convert cables back to inches?
How many cables is 100 inches?
Popular length unit conversions
Convert Inch to other length units
Show all Inch conversions
Metric / SI (18 units)
Imperial / US Customary (26 units)
Nautical (1 units)
Astronomical (9 units)
Atomic / Physics (6 units)
Typographic (3 units)
Sources & references
Conversion factor (1 in = 0.000137149 cable) 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.