Convert Square Link to Square Inch
Convert square links to square inches instantly. 1 square link = 62.7263996528 square inch — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Inch 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 Inch
A square inch is an imperial unit of area equal to exactly 0.00064516 m², the area of a square with sides of one inch. It is widely used in the United States for small-area measurements.
Derived by squaring the inch. The inch was standardized to exactly 25.4 mm via the 1959 International Yard and Pound Agreement.
Square inches are used extensively in US engineering, manufacturing, real estate (for floor plans), and everyday small-area measurements. Engine displacement is often expressed in cubic inches but cross-sections in square inches.
Inch dates to medieval English usage; modern exact value standardized in 1959.
Square Link to Square Inch conversion formula
The relationship between square links and square inches:
To convert square links to square inches, multiply the value in square links by 62.7263996528. To reverse, multiply square inches by 0.0159422509.
How to use this converter
Type a value into the calculator. The result in square inches 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 Inch to Square Link converter for the reverse direction.
Step-by-step: convert square links to square inches
- Write down the value in square links (lk²).
- Multiply that value by the factor 62.7263996528.
- The product is the equivalent value in square inches (in²).
- To reverse, multiply the square inch value by 0.0159422509.
Worked examples
Example 1 — Convert 1 lk² to in²:
1 × 62.7263996528 = 62.7263996528 in²
Example 2 — Convert 100 lk² to in²:
100 × 62.7263996528 = 6272.6399652799 in²
Real-world example — Adjacent small-scale precision
One square link equals 1,000 square inches — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).
1 lk² × 62.7263996528 = 62.7263996528 in²
Real-world example — Adjacent metric sub-units
One square link equals 1,000 square inches. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.
1 lk² × 62.7263996528 = 62.7263996528 in²
Square Link to Square Inch conversion table
Standard reference values for converting square links to square inches:
| Square Link [lk²] | Square Inch [in²] |
|---|---|
| 0.01 | 0.6272639965 |
| 0.1 | 6.2726399653 |
| 1 | 62.7263996528 |
| 2 | 125.4527993056 |
| 3 | 188.1791989584 |
| 4 | 250.9055986112 |
| 5 | 313.631998264 |
| 10 | 627.263996528 |
| 20 | 1254.527993056 |
| 30 | 1881.791989584 |
| 40 | 2509.055986112 |
| 50 | 3136.31998264 |
| 100 | 6272.6399652799 |
| 500 | 31363.1998263997 |
| 1000 | 62726.3996527993 |
Frequently asked questions
How many square inches is 1 square link?
How do I convert square links to square inches?
How do I convert square inches back to square links?
How many square inches 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 = 62.7263996528 in²) 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.