Convert Square Millimeter to Oxgang
Convert square millimeters to oxgangs instantly. 1 square millimeter = 1.647365e-11 oxgang — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Oxgang to Square Millimeter converter for the reverse conversion.
Units explained
Square Millimeter
A square millimeter is a metric unit of area equal to 10⁻⁶ m² (1 mm × 1 mm). It is widely used in engineering, electronics, and small-scale technical work.
Derived by squaring the millimeter, defined as 1/1000 of a meter. The milli- prefix comes from the Latin 'mille' (thousand).
Square millimeters express PCB trace cross-sections, the area of small mechanical features in CAD drawings, biological sample sizes, and material thicknesses.
Millimeter has been part of the metric system since 1795.
Oxgang
An oxgang was a medieval English unit of land area equal to approximately 60,703 m² (about 15 acres or 1/8 of a carucate).
Defined as the area one ox could plow in a year, equal to 1/8 of a carucate (which used 8 oxen).
Oxgangs appear in Domesday Book and other medieval English records. Obsolete by the late medieval period as land measurement moved to fixed surveyed units.
Anglo-Saxon English origin; obsolete by late medieval period.
Square Millimeter to Oxgang conversion formula
The relationship between square millimeters and oxgangs:
To convert square millimeters to oxgangs, multiply the value in square millimeters by 1.647365e-11. To reverse, multiply oxgangs by 6.0703e+10.
How to use this converter
Type a value into the calculator. The result in oxgangs updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Oxgang to Square Millimeter converter for the reverse direction.
Step-by-step: convert square millimeters to oxgangs
- Write down the value in square millimeters (mm²).
- Multiply that value by the factor 1.647365e-11.
- The product is the equivalent value in oxgangs ().
- To reverse, multiply the oxgang value by 6.0703e+10.
Worked examples
Example 1 — Convert 1 mm² to :
1 × 1.647365e-11 = 1.647365e-11
Example 2 — Convert 100 mm² to :
100 × 1.647365e-11 = 1.647365e-9
Real-world example — Feature-scale to long-haul
One billion square millimeters equals exactly one oxgang — the conversion an optical-network engineer performs when totalling feature-level path lengths into a single long-haul fiber-link distance.
1e+9 mm² × 1.647365e-11 = 0.0164736504
Real-world example — Fiber-optic link lengths
Converting from microscale square millimeters to the oxgangs of a long-haul fiber link is the conversion an optical engineer performs when calculating attenuation per kilometre of fiber.
1e+9 mm² × 1.647365e-11 = 0.0164736504
Square Millimeter to Oxgang conversion table
Standard reference values for converting square millimeters to oxgangs:
| Square Millimeter [mm²] | Oxgang [] |
|---|---|
| 0.01 | 1.647365e-13 |
| 0.1 | 1.647365e-12 |
| 1 | 1.647365e-11 |
| 2 | 3.29473e-11 |
| 3 | 4.942095e-11 |
| 4 | 6.58946e-11 |
| 5 | 8.236825e-11 |
| 10 | 1.647365e-10 |
| 20 | 3.29473e-10 |
| 30 | 4.942095e-10 |
| 40 | 6.58946e-10 |
| 50 | 8.236825e-10 |
| 100 | 1.647365e-9 |
| 500 | 8.236825e-9 |
| 1000 | 1.647365e-8 |
Frequently asked questions
How many oxgangs is 1 square millimeter?
How do I convert square millimeters to oxgangs?
How do I convert oxgangs back to square millimeters?
How many oxgangs is 100 square millimeters?
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Scientific / Physics (5 units)
Sources & references
Conversion factor (1 mm² = 1.647365e-11 ) 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.