Convert Square Perch to Square Link
Convert square perches to square links instantly. 1 square perch = 625.0000034595 square link — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Link to Square Perch converter for the reverse conversion.
Units explained
Square Perch
A square perch is identical to a square rod, equal to approximately 25.293 m². 'Perch' is the older English regional name for the same unit.
Identical in value to square rod and square pole; differs only in regional naming preference. 'Perch' is more commonly used in British and Irish historical contexts.
Square perches survive in some historical British property records, particularly in Ireland where the unit had legal status until the metric transition.
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 Perch to Square Link conversion formula
The relationship between square perches and square links:
To convert square perches to square links, multiply the value in square perches 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 Perch converter for the reverse direction.
Step-by-step: convert square perches to square links
- Write down the value in square perches (perch²).
- 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 perch² to lk²:
1 × 625.0000034595 = 625.0000034595 lk²
Example 2 — Convert 100 perch² to lk²:
100 × 625.0000034595 = 62500.0003459475 lk²
Square Perch to Square Link conversion table
Standard reference values for converting square perches to square links:
| Square Perch [perch²] | 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 perch?
How do I convert square perches to square links?
How do I convert square links back to square perches?
How many square links is 100 square perches?
Popular area unit conversions
Convert Square Perch to other area units
Show all Square Perch conversions
Metric / SI (5 units)
Imperial / US Customary (14 units)
Sources & references
Conversion factor (1 perch² = 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 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.