Convert Square Rod to Square Link
Convert square rods to square links instantly. 1 square rod = 625.0000034595 square link — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Link to Square Rod converter for the reverse conversion.
Units explained
Square Rod
A square rod is an imperial unit of area equal to approximately 25.293 m². It is part of the historical English land survey system.
Derived by squaring the rod (16.5 feet or 1/4 chain). The rod, perch, and pole are three names for the same length.
Square rods appear in historical English and American land surveys and legacy property records. The unit is largely obsolete today, surviving mainly in legal descriptions of older land grants.
Standardized via the 1959 International Yard and Pound Agreement.
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 Rod to Square Link conversion formula
The relationship between square rods and square links:
To convert square rods to square links, multiply the value in square rods by 625.0000034595. To reverse, multiply square links by 0.0016.
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 Rod converter for the reverse direction.
Step-by-step: convert square rods to square links
- Write down the value in square rods (rd²).
- Multiply that value by the factor 625.0000034595.
- The product is the equivalent value in square links (lk²).
- To reverse, multiply the square link value by 0.0016.
Worked examples
Example 1 — Convert 1 rd² to lk²:
1 × 625.0000034595 = 625.0000034595 lk²
Example 2 — Convert 100 rd² to lk²:
100 × 625.0000034595 = 62500.0003459475 lk²
Square Rod to Square Link conversion table
Standard reference values for converting square rods to square links:
| Square Rod [rd²] | Square Link [lk²] |
|---|---|
| 0.01 | 6.2500000346 |
| 0.1 | 62.5000003459 |
| 1 | 625.0000034595 |
| 2 | 1250.000006919 |
| 3 | 1875.0000103784 |
| 4 | 2500.0000138379 |
| 5 | 3125.0000172974 |
| 10 | 6250.0000345948 |
| 20 | 12500.0000691895 |
| 30 | 18750.0001037843 |
| 40 | 25000.000138379 |
| 50 | 31250.0001729738 |
| 100 | 62500.0003459475 |
| 500 | 312500.0017297377 |
| 1000 | 625000.0034594754 |
Frequently asked questions
How many square links is 1 square rod?
How do I convert square rods to square links?
How do I convert square links back to square rods?
How many square links is 100 square rods?
Popular area unit conversions
Convert Square Rod to other area units
Show all Square Rod conversions
Metric / SI (5 units)
Imperial / US Customary (14 units)
Sources & references
Conversion factor (1 rd² = 625.0000034595 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.