Convert Square Microinch to Square Link
Convert square microinches to square links instantly. 1 square microinch = 1.594225e-14 square link — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Link to Square Microinch converter for the reverse conversion.
Units explained
Square Microinch
A square microinch is an imperial unit of area equal to 6.4516×10⁻¹⁶ m². It is used in precision-engineering contexts where surface roughness is measured in microinches.
Derived by squaring the microinch (1 µin = 25.4 nm). Standardized via the 1959 International Yard and Pound Agreement which defined 1 inch = 25.4 mm exactly.
Square microinches appear in surface metrology and high-precision manufacturing in countries that use imperial units, though more often surface roughness is reported as a length parameter (Ra) rather than as an area.
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 Microinch to Square Link conversion formula
The relationship between square microinches and square links:
To convert square microinches to square links, multiply the value in square microinches by 1.594225e-14. To reverse, multiply square links by 6.27264e+13.
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 Microinch converter for the reverse direction.
Step-by-step: convert square microinches to square links
- Write down the value in square microinches (µin²).
- Multiply that value by the factor 1.594225e-14.
- The product is the equivalent value in square links (lk²).
- To reverse, multiply the square link value by 6.27264e+13.
Worked examples
Example 1 — Convert 1 µin² to lk²:
1 × 1.594225e-14 = 1.594225e-14 lk²
Example 2 — Convert 100 µin² to lk²:
100 × 1.594225e-14 = 1.594225e-12 lk²
Real-world example — Sub-micron to millimeter
500,000 square microinches converts to a small everyday quantity in square links — useful when relating optical-wavelength specifications to physical mounting hardware.
500000 µin² × 1.594225e-14 = 7.971125e-9 lk²
Real-world example — From wavelengths to millimeter-scale objects
A value of one million square microinches sounds vast at the atomic scale but converts to a small everyday quantity in square links — useful when relating optical-wavelength specifications to physical mounting hardware.
1000000 µin² × 1.594225e-14 = 1.594225e-8 lk²
Square Microinch to Square Link conversion table
Standard reference values for converting square microinches to square links:
| Square Microinch [µin²] | Square Link [lk²] |
|---|---|
| 0.01 | 1.594225e-16 |
| 0.1 | 1.594225e-15 |
| 1 | 1.594225e-14 |
| 2 | 3.18845e-14 |
| 3 | 4.782675e-14 |
| 4 | 6.3769e-14 |
| 5 | 7.971125e-14 |
| 10 | 1.594225e-13 |
| 20 | 3.18845e-13 |
| 30 | 4.782675e-13 |
| 40 | 6.3769e-13 |
| 50 | 7.971125e-13 |
| 100 | 1.594225e-12 |
| 500 | 7.971125e-12 |
| 1000 | 1.594225e-11 |
Frequently asked questions
How many square links is 1 square microinch?
How do I convert square microinches to square links?
How do I convert square links back to square microinches?
How many square links is 100 square microinches?
Popular area unit conversions
Convert Square Microinch to other area units
Show all Square Microinch conversions
Metric / SI (5 units)
Imperial / US Customary (14 units)
Sources & references
Conversion factor (1 µin² = 1.594225e-14 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.