Convert Square Millimeter to Feddan
Convert square millimeters to feddans instantly. 1 square millimeter = 2.380482e-10 feddan — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Feddan 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.
Feddan
A feddan is an Egyptian unit of land area equal to approximately 4200.83 m² (about 1.038 acres). Used in Egypt, Sudan, Syria, and Oman.
Originated as an Egyptian agricultural unit. Standardized at 4200.83 m² in modern Egyptian law (specifically, 333.33 qasaba squared).
Feddans are the primary unit for agricultural land in Egypt and several Arab countries. The conversion to hectares (1 feddan ≈ 0.42 hectare) is widely known regionally.
Standardized in modern Egyptian land law.
Square Millimeter to Feddan conversion formula
The relationship between square millimeters and feddans:
To convert square millimeters to feddans, multiply the value in square millimeters by 2.380482e-10. To reverse, multiply feddans by 4.20083e+9.
How to use this converter
Type a value into the calculator. The result in feddans updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Feddan to Square Millimeter converter for the reverse direction.
Step-by-step: convert square millimeters to feddans
- Write down the value in square millimeters (mm²).
- Multiply that value by the factor 2.380482e-10.
- The product is the equivalent value in feddans (feddan).
- To reverse, multiply the feddan value by 4.20083e+9.
Worked examples
Example 1 — Convert 1 mm² to feddan:
1 × 2.380482e-10 = 2.380482e-10 feddan
Example 2 — Convert 100 mm² to feddan:
100 × 2.380482e-10 = 2.380482e-8 feddan
Real-world example — Fiber-optic link lengths
Converting from microscale square millimeters to the feddans of a long-haul fiber link is the conversion an optical engineer performs when calculating attenuation per kilometre of fiber.
1e+9 mm² × 2.380482e-10 = 0.2380481952 feddan
Real-world example — Feature-scale to long-haul
One billion square millimeters equals exactly one feddan — the conversion an optical-network engineer performs when totalling feature-level path lengths into a single long-haul fiber-link distance.
1e+9 mm² × 2.380482e-10 = 0.2380481952 feddan
Square Millimeter to Feddan conversion table
Standard reference values for converting square millimeters to feddans:
| Square Millimeter [mm²] | Feddan [feddan] |
|---|---|
| 0.01 | 2.380482e-12 |
| 0.1 | 2.380482e-11 |
| 1 | 2.380482e-10 |
| 2 | 4.760964e-10 |
| 3 | 7.141446e-10 |
| 4 | 9.521928e-10 |
| 5 | 1.190241e-9 |
| 10 | 2.380482e-9 |
| 20 | 4.760964e-9 |
| 30 | 7.141446e-9 |
| 40 | 9.521928e-9 |
| 50 | 1.190241e-8 |
| 100 | 2.380482e-8 |
| 500 | 1.190241e-7 |
| 1000 | 2.380482e-7 |
Frequently asked questions
How many feddans is 1 square millimeter?
How do I convert square millimeters to feddans?
How do I convert feddans back to square millimeters?
How many feddans is 100 square millimeters?
Popular area unit conversions
Convert Square Millimeter to other area units
Show all Square Millimeter conversions
Metric / SI (15 units)
Imperial / US Customary (15 units)
US Survey (5 units)
Indian Subcontinent (16 units)
Other Regional (10 units)
Scientific / Physics (5 units)
Sources & references
Conversion factor (1 mm² = 2.380482e-10 feddan) 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.