Convert Square Link to Square Furlong
Convert square links to square furlongs instantly. 1 square link = 1e-6 square furlong — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Furlong to Square Link converter for the reverse conversion.
Units explained
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 Furlong
A square furlong is an imperial unit of area equal to exactly 40,468.564 m², or 10 acres.
Derived by squaring the furlong (660 feet or 1/8 mile). The furlong itself comes from medieval English 'furrow long', the length of a plowed furrow.
Square furlongs are rarely used today. The unit appears occasionally in historical English farming records and in some horseracing contexts (though usually as length, not area).
Medieval English origin; standardized via the 1959 International Yard and Pound Agreement.
Square Link to Square Furlong conversion formula
The relationship between square links and square furlongs:
To convert square links to square furlongs, multiply the value in square links by 1e-6. To reverse, multiply square furlongs by 1000000.0055351607.
How to use this converter
Type a value into the calculator. The result in square furlongs 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 Furlong to Square Link converter for the reverse direction.
Step-by-step: convert square links to square furlongs
- Write down the value in square links (lk²).
- Multiply that value by the factor 1e-6.
- The product is the equivalent value in square furlongs (fur²).
- To reverse, multiply the square furlong value by 1000000.0055351607.
Worked examples
Example 1 — Convert 1 lk² to fur²:
1 × 1e-6 = 1e-6 fur²
Example 2 — Convert 100 lk² to fur²:
100 × 1e-6 = 1e-4 fur²
Real-world example — Architectural to geographic scale
A 100,000-square link measurement equals one square furlong. The five-order-of-magnitude scale change comes up in mapping work where architectural site plans must be related to road-network maps.
100000 lk² × 1e-6 = 0.0999999994 fur²
Real-world example — Small to geographic-scale
100,000 square links equals one square furlong — a useful conversion when small-scale survey diagrams must be related to road-network distances on a different map.
100000 lk² × 1e-6 = 0.0999999994 fur²
Square Link to Square Furlong conversion table
Standard reference values for converting square links to square furlongs:
| Square Link [lk²] | Square Furlong [fur²] |
|---|---|
| 0.01 | 1e-8 |
| 0.1 | 1e-7 |
| 1 | 1e-6 |
| 2 | 2e-6 |
| 3 | 3e-6 |
| 4 | 4e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 20 | 2e-5 |
| 30 | 3e-5 |
| 40 | 4e-5 |
| 50 | 5e-5 |
| 100 | 1e-4 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Frequently asked questions
How many square furlongs is 1 square link?
How do I convert square links to square furlongs?
How do I convert square furlongs back to square links?
How many square furlongs is 100 square links?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (14 units)
Sources & references
Conversion factor (1 lk² = 1e-6 fur²) 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.