Electric Resistivity Converter - Convert Ω·m, Ω·cm & More Units
Result:
1 Ω·m = 100 Ω·cm
How Electric Resistivity Conversion Works
Input Value
Enter resistivity value
Select Units
Choose from and to units
Convert
Apply conversion formula
Electric Resistivity Formulas
Ω·m to Ω·cm
Ω·cm = Ω·m × 100
Example: 2 Ω·m = 2 × 100 = 200 Ω·cm
Ω·cm to Ω·mm
Ω·mm = Ω·cm × 10
Example: 50 Ω·cm = 50 × 10 = 500 Ω·mm
μΩ·m to Ω·m
Ω·m = μΩ·m ÷ 1,000,000
Example: 500 μΩ·m = 500 ÷ 1,000,000 = 0.0005 Ω·m
Resistivity Formula
ρ = R × A / L
Where R=resistance, A=area, L=length
Electric Resistivity Conversion Table
| Ω·m | Ω·cm | Ω·mm | μΩ·m | μΩ·cm | abΩ·cm |
|---|---|---|---|---|---|
| 0.000001 | 0.000100 | 0.001 | 1 | 100 | 100000 |
| 0.00001 | 0.001000 | 0.010 | 10 | 1000 | 1000000 |
| 0.0001 | 0.010000 | 0.100 | 100 | 10000 | 10000000 |
| 0.001 | 0.100000 | 1.000 | 1000 | 100000 | 100000000 |
| 0.01 | 1.000000 | 10.000 | 10000 | 1000000 | 1000000000 |
| 0.1 | 10.000000 | 100.000 | 100000 | 10000000 | 10000000000 |
| 1 | 100.000000 | 1000.000 | 1000000 | 100000000 | 100000000000 |
| 10 | 1000.000000 | 10000.000 | 10000000 | 1000000000 | 1000000000000 |
| 100 | 10000.000000 | 100000.000 | 100000000 | 10000000000 | 10000000000000 |
| 1000 | 100000.000000 | 1000000.000 | 1000000000 | 100000000000 | 100000000000000 |
| 10000 | 1000000.000000 | 10000000.000 | 10000000000 | 1000000000000 | 1000000000000000 |
| 100000 | 10000000.000000 | 100000000.000 | 100000000000 | 10000000000000 | 10000000000000000 |
| 1000000 | 100000000.000000 | 1000000000.000 | 1000000000000 | 100000000000000 | 100000000000000000 |
| 10000000 | 1000000000.000000 | 10000000000.000 | 10000000000000 | 1000000000000000 | 1000000000000000000 |
| 100000000 | 10000000000.000000 | 100000000000.000 | 100000000000000 | 10000000000000000 | 10000000000000000000 |
Resistivity Units Progression Chart
0.01 Ω·m
0.1 Ω·m
1 Ω·m
10 Ω·m
100 Ω·m
1000 Ω·m
Practice Problems
Problem 1:
Convert 5 Ω·m to Ω·cm
Solution: 5 × 100 = 500 Ω·cm
Problem 2:
Convert 250 Ω·cm to Ω·mm
Solution: 250 × 10 = 2500 Ω·mm
Problem 3:
Convert 1000 μΩ·m to Ω·m
Solution: 1000 × 0.000001 = 0.001 Ω·m
Problem 4:
Convert 0.5 Ω·m to μΩ·cm
Solution: 0.5 ÷ 0.00000001 = 50,000,000 μΩ·cm
Problem 5:
Convert 75 Ω·mm to Ω·cm
Solution: 75 × 0.001 ÷ 0.01 = 7.5 Ω·cm
Daily Uses of Electric Resistivity
Copper wires have low resistivity for efficient power transmission
Semiconductor materials control resistivity for electronic devices
Insulation materials have high resistivity for electrical safety
Soil resistivity affects grounding systems in buildings
Material testing uses resistivity to check quality and purity
Export Options
What is Electric Resistivity?
Electric resistivity is a measure of how strongly a material opposes the flow of electric current. It tells us how much a material resists electricity passing through it. Materials with low resistivity let electricity flow easily, while materials with high resistivity block electricity.
Our electric resistivity converter helps you change between different units like ohm-meter (Ω·m), ohm-centimeter (Ω·cm), and more. This resistivity calculator makes it easy to work with electrical properties in engineering, physics, and everyday applications.
The resistivity unit converter supports all common units used in electrical work. Whether you need ohm meter conversion or ohm centimeter calculator functions, this electrical resistivity tool handles all your conversion needs quickly and accurately.
Common Examples of Electric Resistivity
Good Conductors (Low Resistivity)
Poor Conductors (High Resistivity)
Note: These values show why copper is used in electrical wires (low resistivity) while rubber is used for insulation (high resistivity). Our electrical properties calculator helps you convert between these different scales easily.
How to Use the Electric Resistivity Converter
Step-by-Step Guide
- Enter the resistivity value you want to convert
- Select the unit you are converting from (like Ω·m)
- Choose the unit you want to convert to (like Ω·cm)
- The result appears instantly below the calculator
- Use the conversion table for quick reference
Supported Units
- • Ohm meter (Ω·m) - Base SI unit
- • Ohm centimeter (Ω·cm) - Common in labs
- • Ohm millimeter (Ω·mm) - For thin materials
- • Microhm meter (μΩ·m) - For very low resistivity
- • Microhm centimeter (μΩ·cm) - Precise measurements
- • Abohm centimeter (abΩ·cm) - CGS unit system
Real-World Applications
Electrical Engineering
Engineers use resistivity values to choose the right materials for wires, circuits, and components. Low resistivity materials like copper are perfect for power lines.
Common range: 10⁻⁸ to 10⁻⁶ Ω·m
Material Testing
Quality control labs measure resistivity to check if materials meet standards. This helps ensure products work safely and efficiently.
Testing range: 10⁻⁸ to 10¹⁶ Ω·m
Geophysics
Scientists measure soil and rock resistivity to find underground water, minerals, or plan construction projects safely.
Soil range: 1 to 10,000 Ω·m
Frequently Asked Questions
What is the difference between resistance and resistivity?
Resistance depends on the size and shape of an object, while resistivity is a property of the material itself. Resistivity tells us how the material behaves, regardless of its size. Our resistivity calculator focuses on the material property, not the object size.
Why do we need different resistivity units?
Different fields use different units for convenience. Scientists might use Ω·m for large-scale measurements, while electronics engineers prefer Ω·cm for small components. Our electrical resistivity tool converts between all these units easily.
How accurate is this electric resistivity converter?
Our resistivity unit converter uses precise conversion factors and displays results up to 8 decimal places. The calculations are based on standard scientific conversion ratios, making it reliable for both educational and professional use.
Can I use this for semiconductor materials?
Yes! This electrical properties calculator works for all materials, including semiconductors. Semiconductor resistivity typically ranges from 10⁻³ to 10⁹ Ω·m, and our tool handles this entire range with precision.
What is the most common resistivity unit?
Ohm-meter (Ω·m) is the standard SI unit for resistivity and is most commonly used in scientific work. However, ohm-centimeter (Ω·cm) is also very popular in laboratory settings and material specifications. Our ohm meter conversion tool supports both.
How does temperature affect resistivity?
Temperature significantly affects resistivity. For metals, resistivity increases with temperature. For semiconductors, it usually decreases with temperature. Always consider the temperature when using resistivity values in calculations.