Convert Square Chain to Square Link
Convert square chains to square links instantly. 1 square chain = 10000.0000543632 square link — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Link to Square Chain converter for the reverse conversion.
Units explained
Square Chain
A square chain is an imperial unit of area equal to approximately 404.686 m². It equals 1/10 of an acre.
Derived by squaring the chain (66 feet or 22 yards). The chain was defined by Edmund Gunter in 1620 specifically so that 10 square chains equal exactly one acre.
Square chains appear in US Public Land Survey System (PLSS) records and historical English property documents. The 10-to-1 ratio with acres made early survey arithmetic easier.
Defined by Edmund Gunter in 1620 specifically for surveying convenience.
Square Link
A square link is an imperial unit of area equal to approximately 0.0405 m². It is part of the chain-link surveying system used historically for land measurement.
Derived by squaring the link (1/100 of a chain = 7.92 inches). The Gunter's chain was introduced by English mathematician Edmund Gunter in 1620 for land surveying.
Square links appear in historical land surveys and legacy property records, particularly in the US Public Land Survey System (PLSS). Modern surveys use feet or meters instead.
Gunter's chain introduced in 1620; standardized via the 1959 International Yard and Pound Agreement.
Square Chain to Square Link conversion formula
The relationship between square chains and square links:
To convert square chains to square links, multiply the value in square chains by 10000.0000543632. To reverse, multiply square links by 1e-4.
How to use this converter
Type a value into the calculator. The result in square links updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Link to Square Chain converter for the reverse direction.
Step-by-step: convert square chains to square links
- Write down the value in square chains (ch²).
- Multiply that value by the factor 10000.0000543632.
- The product is the equivalent value in square links (lk²).
- To reverse, multiply the square link value by 1e-4.
Worked examples
Example 1 — Convert 1 ch² to lk²:
1 × 10000.0000543632 = 10000.0000543632 lk²
Example 2 — Convert 100 ch² to lk²:
100 × 10000.0000543632 = 1000000.0054363185 lk²
Square Chain to Square Link conversion table
Standard reference values for converting square chains to square links:
| Square Chain [ch²] | Square Link [lk²] |
|---|---|
| 0.01 | 100.0000005436 |
| 0.1 | 1000.0000054363 |
| 1 | 10000.0000543632 |
| 2 | 20000.0001087264 |
| 3 | 30000.0001630896 |
| 4 | 40000.0002174527 |
| 5 | 50000.0002718159 |
| 10 | 100000.0005436318 |
| 20 | 200000.0010872637 |
| 30 | 300000.0016308955 |
| 40 | 400000.0021745274 |
| 50 | 500000.0027181592 |
| 100 | 1000000.0054363185 |
| 500 | 5000000.0271815928 |
| 1000 | 1e+7 |
Frequently asked questions
How many square links is 1 square chain?
How do I convert square chains to square links?
How do I convert square links back to square chains?
How many square links is 100 square chains?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (14 units)
Sources & references
Conversion factor (1 ch² = 10000.0000543632 lk²) 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.