Convert Perch to Cable
Convert perches to cables instantly. 1 perch = 0.0271555076 cable — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Cable to Perch converter for the reverse conversion.
Units explained
Perch
A perch is an Imperial unit of length identical to the rod — 16.5 feet (about 5.03 m). The names 'rod', 'perch', and 'pole' all refer to the same surveying unit and differ only by regional preference.
Like the rod, the perch derives from medieval English land-surveying. The name 'perch' was particularly common in legal land descriptions in Ireland and parts of the UK.
Perches appear in legacy land descriptions in Ireland, the UK, and historical US documents. Modern usage is rare.
Medieval English surveying origin; identical to the rod since 1620; became exact via the 1959 International Yard and Pound Agreement.
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.
Perch to Cable conversion formula
The relationship between perches and cables:
To convert perches to cables, multiply the value in perches by 0.0271555076. To reverse, multiply cables by 36.8249423368.
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 Perch converter for the reverse direction.
Step-by-step: convert perches to cables
- Write down the value in perches (perch).
- Multiply that value by the factor 0.0271555076.
- The product is the equivalent value in cables (cable).
- To reverse, multiply the cable value by 36.8249423368.
Worked examples
Example 1 — Convert 1 perch to cable:
1 × 0.0271555076 = 0.0271555076 cable
Example 2 — Convert 100 perch to cable:
100 × 0.0271555076 = 2.7155507559 cable
Real-world example — Adult height conversion
A 1.8-perch-tall person measures a value in cables that converts the height to the unit favoured by American forms, schools, or driver's licences. This is daily routine for anyone living between metric and imperial systems.
1.8 perch × 0.0271555076 = 0.0488799136 cable
Real-world example — Fabric purchase length
Two perches of fabric equals a value in cables essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 perch × 0.0271555076 = 0.0543110151 cable
Real-world example — Maritime depth conversion
A 10-perch sounding depth converts cleanly into cables. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 perch × 0.0271555076 = 0.2715550756 cable
Perch to Cable conversion table
Standard reference values for converting perches to cables:
| Perch [perch] | Cable [cable] |
|---|---|
| 0.01 | 0.0002715551 |
| 0.1 | 0.0027155508 |
| 1 | 0.0271555076 |
| 2 | 0.0543110151 |
| 3 | 0.0814665227 |
| 4 | 0.1086220302 |
| 5 | 0.1357775378 |
| 10 | 0.2715550756 |
| 20 | 0.5431101512 |
| 30 | 0.8146652268 |
| 40 | 1.0862203024 |
| 50 | 1.357775378 |
| 100 | 2.7155507559 |
| 500 | 13.5777537797 |
| 1000 | 27.1555075594 |
Frequently asked questions
How many cables is 1 perch?
How do I convert perches to cables?
How do I convert cables back to perches?
How many cables is 100 perches?
Popular length unit conversions
Convert Perch to other length units
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 perch = 0.0271555076 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 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.