Convert Pole to Centiinch
Convert poles to centiinches instantly. 1 pole = 19800 centiinch — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Centiinch to Pole converter for the reverse conversion.
Units explained
Pole
A pole is an Imperial unit of length identical to the rod and perch — 16.5 feet (about 5.03 m). The names are regional and historical variants for the same measurement.
The pole derives from medieval English land-surveying. The name comes from the physical wooden pole used by surveyors to lay out the unit on the ground.
Poles appear in historical land records, particularly older US public-land surveys. Functionally identical to rod and perch in all calculations.
Medieval English surveying origin; identical to the rod since 1620; became exact via the 1959 International Yard and Pound Agreement.
Centiinch
A centiinch is an Imperial unit of length equal to one hundredth of an inch (2.54×10⁻⁴ m). It is functionally identical to the caliber as a length unit but appears in different industrial contexts.
Derived from the inch via the metric-style prefix centi- (Latin centum, hundred). Standardised through the 1959 International Yard and Pound Agreement.
Centiinches occasionally appear in older engineering specifications and US-localised metric-pseudo notation. Most contemporary use prefers thousandths (mils) for sub-inch precision.
Standardised through the 1959 International Yard and Pound Agreement; rarely used in modern practice.
Pole to Centiinch conversion formula
The relationship between poles and centiinches:
To convert poles to centiinches, multiply the value in poles by 19800. To reverse, multiply centiinches by 5.050505e-5.
How to use this converter
Type a value into the calculator. The result in centiinches updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Centiinch to Pole converter for the reverse direction.
Step-by-step: convert poles to centiinches
- Write down the value in poles (pole).
- Multiply that value by the factor 19800.
- The product is the equivalent value in centiinches (cin).
- To reverse, multiply the centiinch value by 5.050505e-5.
Worked examples
Example 1 — Convert 1 pole to cin:
1 × 19800 = 19800 cin
Example 2 — Convert 100 pole to cin:
100 × 19800 = 1980000 cin
Real-world example — Macroscopic to microscopic
One pole equals a million centiinches. Optical engineers calculating coherence length compare macro-scale path lengths with micro-scale wavelength differences using exactly this conversion.
1 pole × 19800 = 19800 cin
Real-world example — Sub-meter precision
A 0.001-pole (1 mm) tolerance equals 1,000 centiinches — useful for surface-finish specs, where macro-scale dimensions are given in the larger unit but feature roughness in the smaller.
0.001 pole × 19800 = 19.8 cin
Real-world example — Macro-to-micro scale comparison
2 poles of measurement converts to a very large number in centiinches — useful in materials science when comparing bulk-sample dimensions to feature-level surface specs.
2 pole × 19800 = 39600 cin
Pole to Centiinch conversion table
Standard reference values for converting poles to centiinches:
| Pole [pole] | Centiinch [cin] |
|---|---|
| 0.01 | 198 |
| 0.1 | 1980 |
| 1 | 19800 |
| 2 | 39600 |
| 3 | 59400 |
| 4 | 79200 |
| 5 | 99000 |
| 10 | 198000 |
| 20 | 396000 |
| 30 | 594000 |
| 40 | 792000 |
| 50 | 990000 |
| 100 | 1980000 |
| 500 | 9900000 |
| 1000 | 1.98e+7 |
Frequently asked questions
How many centiinches is 1 pole?
How do I convert poles to centiinches?
How do I convert centiinches back to poles?
How many centiinches is 100 poles?
Popular length unit conversions
Convert Pole to other length units
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 pole = 19800 cin) 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.