Convert Link to Pole
Convert links to poles instantly. 1 link = 0.04 pole — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Pole to Link converter for the reverse conversion.
Units explained
Link
A link is an Imperial unit of length equal to 7.92 inches (201.168 mm) — exactly 1/100 of a surveyor's chain. It is the smallest unit in the chain-based survey measurement system.
The link was defined by Edmund Gunter in 1620 as part of his 22-yard surveying chain. He divided the chain into 100 links specifically to enable easy decimal arithmetic when computing parcel areas.
Links appear in historical US and UK land survey documents (especially pre-1900). Modern surveyors generally use feet or meters but legacy deed records and government land surveys still cite acreage in chains and links.
Defined by Edmund Gunter in 1620; standardised as 7.92 inches via the chain definition; became exact via the 1959 International Yard and Pound Agreement.
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.
Link to Pole conversion formula
The relationship between links and poles:
To convert links to poles, multiply the value in links by 0.04. To reverse, multiply poles by 25.
How to use this converter
Type a value into the calculator. The result in poles updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Pole to Link converter for the reverse direction.
Step-by-step: convert links to poles
- Write down the value in links (lk).
- Multiply that value by the factor 0.04.
- The product is the equivalent value in poles (pole).
- To reverse, multiply the pole value by 25.
Worked examples
Example 1 — Convert 1 lk to pole:
1 × 0.04 = 0.04 pole
Example 2 — Convert 100 lk to pole:
100 × 0.04 = 4 pole
Real-world example — Maritime depth conversion
A 10-link sounding depth converts cleanly into poles. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 lk × 0.04 = 0.4 pole
Real-world example — Reference scenario in case of fallback
Conversion between human-scale length units is the everyday workflow of architecture, athletics, and apparel design — three of the most common contexts that span metric and imperial systems.
1 lk × 0.04 = 0.04 pole
Real-world example — Adult height conversion
A 1.8-link-tall person measures a value in poles 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 lk × 0.04 = 0.072 pole
Link to Pole conversion table
Standard reference values for converting links to poles:
| Link [lk] | Pole [pole] |
|---|---|
| 0.01 | 0.0004 |
| 0.1 | 0.004 |
| 1 | 0.04 |
| 2 | 0.08 |
| 3 | 0.12 |
| 4 | 0.16 |
| 5 | 0.2 |
| 10 | 0.4 |
| 20 | 0.8 |
| 30 | 1.2 |
| 40 | 1.6 |
| 50 | 2 |
| 100 | 4 |
| 500 | 20 |
| 1000 | 40 |
Frequently asked questions
How many poles is 1 link?
How do I convert links to poles?
How do I convert poles back to links?
How many poles is 100 links?
Popular length unit conversions
Convert Link to other length units
Show all Link conversions
Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 lk = 0.04 pole) 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.