Convert Acre to Square Link
Convert acres to square links instantly. 1 acre = 100000.0005535161 square link — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Link to Acre converter for the reverse conversion.
Units explained
Acre
An acre is an imperial unit of area equal to exactly 4046.8564224 m². It is the most widely used non-metric unit for land area, particularly in the US, UK, and India.
Originally defined in medieval England as the area one yoke of oxen could plow in a day, approximately 40 perches by 4 perches. Standardized via the 1959 International Yard and Pound Agreement.
Acres are the standard land measurement unit in the US (real estate, agriculture), the UK (rural property), and widely used in India (alongside hectares and traditional regional units). 1 acre = 4840 sq yd = 43,560 sq ft = 0.4047 hectare.
Medieval English farming origin; modern exact value standardized in 1959.
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.
Acre to Square Link conversion formula
The relationship between acres and square links:
To convert acres to square links, multiply the value in acres by 100000.0005535161. To reverse, multiply square links by 1e-5.
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 Acre converter for the reverse direction.
Step-by-step: convert acres to square links
- Write down the value in acres (ac).
- Multiply that value by the factor 100000.0005535161.
- The product is the equivalent value in square links (lk²).
- To reverse, multiply the square link value by 1e-5.
Worked examples
Example 1 — Convert 1 ac to lk²:
1 × 100000.0005535161 = 100000.0005535161 lk²
Example 2 — Convert 100 ac to lk²:
100 × 100000.0005535161 = 1e+7 lk²
Real-world example — Geographic to architectural scale
One acre equals 100,000 square links. Map scales use this when an architectural site plan (in the smaller unit) must be related to road-network plans (in the larger unit) on the same drawing.
1 ac × 100000.0005535161 = 100000.0005535161 lk²
Real-world example — Geographic to architectural conversion
One acre equals 100,000 square links. The conversion bridges geographic-scale survey work and architectural-scale building plans on the same drawing.
1 ac × 100000.0005535161 = 100000.0005535161 lk²
Acre to Square Link conversion table
Standard reference values for converting acres to square links:
| Acre [ac] | Square Link [lk²] |
|---|---|
| 0.01 | 1000.0000055352 |
| 0.1 | 10000.0000553516 |
| 1 | 100000.0005535161 |
| 2 | 200000.0011070321 |
| 3 | 300000.0016605482 |
| 4 | 400000.0022140642 |
| 5 | 500000.0027675803 |
| 10 | 1000000.0055351607 |
| 20 | 2000000.0110703213 |
| 30 | 3000000.016605482 |
| 40 | 4000000.0221406426 |
| 50 | 5000000.0276758028 |
| 100 | 1e+7 |
| 500 | 5e+7 |
| 1000 | 1e+8 |
Frequently asked questions
How many square links is 1 acre?
How do I convert acres to square links?
How do I convert square links back to acres?
How many square links is 100 acres?
Popular area unit conversions
Convert Acre to other area units
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Metric / SI (16 units)
Imperial / US Customary (14 units)
US Survey (5 units)
Indian Subcontinent (16 units)
Other Regional (10 units)
Scientific / Physics (5 units)
Historical / Pre-metric European (6 units)
Sources & references
Conversion factor (1 ac = 100000.0005535161 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.