Electrical Resistance Converter
Convert electrical resistance between ohms (Ω), milliohms (mΩ), kiloohms (kΩ) and megaohms (MΩ). Enter a value, choose the starting and target units, and get the equivalent instantly for electronics, circuit design and electrical troubleshooting.
Convert Resistance Units
Choose any supported resistance units. The result updates when you change the value or either unit.
2.2 kΩ × 1,000 = 2,200 Ω
Common resistance conversions
Ohms (Ω)
The standard SI unit of electrical resistance, commonly used for resistors and low-to-moderate resistance values.
Kiloohms (kΩ)
One kiloohm equals 1,000 ohms. Often used in sensor circuits, pull-up resistors and signal electronics.
Megaohms (MΩ)
One megaohm equals 1,000,000 ohms. Useful for high-resistance circuits and insulation measurements.
Worked conversion examples
Example 1: kΩ to Ω
Convert 2.2 kΩ to ohms.
1 kΩ = 1,000 Ω
2.2 × 1,000 = 2,200 Ω
Example 2: MΩ to Ω
Convert 0.47 MΩ to ohms.
1 MΩ = 1,000,000 Ω
0.47 × 1,000,000 = 470,000 Ω
Example 3: Ω to kΩ
Convert 3,300 Ω to kiloohms.
Divide by 1,000.
3,300 ÷ 1,000 = 3.3 kΩ
Resistance conversion table
| Ohms (Ω) | Milliohms (mΩ) | Kiloohms (kΩ) | Megaohms (MΩ) |
|---|---|---|---|
| 1 | 1,000 | 0.001 | 0.000001 |
| 10 | 10,000 | 0.01 | 0.00001 |
| 1,000 | 1,000,000 | 1 | 0.001 |
| 10,000 | 10,000,000 | 10 | 0.01 |
| 1,000,000 | 1,000,000,000 | 1,000 | 1 |
How to convert electrical resistance
All supported units represent the same physical quantity, so conversion uses powers of 1,000. Convert kiloohms to ohms by multiplying by 1,000; convert megaohms to ohms by multiplying by 1,000,000. To convert ohms to kiloohms, divide by 1,000, and to convert ohms to megaohms, divide by 1,000,000.
Frequently asked questions
What is the SI unit of electrical resistance?
The SI unit is the ohm, symbol Ω. One ohm is the resistance that allows a current of one ampere when a potential difference of one volt is applied.
How many ohms are in one kiloohm?
One kiloohm (1 kΩ) equals 1,000 ohms (Ω).
How many ohms are in one megaohm?
One megaohm (1 MΩ) equals 1,000,000 ohms, or 1,000 kiloohms.
What is a milliohm?
One milliohm (1 mΩ) is one-thousandth of an ohm, or 0.001 Ω. Milliohms are useful when measuring very low resistance.
Can I use this tool for electronics projects?
Yes. It converts resistance units used in common electronics and circuit calculations. For safety-critical work, verify component specifications and measurements with suitable equipment.
Does converting the unit change the resistance?
No. Unit conversion changes only how the same resistance is expressed, not the physical resistance itself.
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