Electrical Resistance Converter

Convert between ohms, milliohms, kilohms, megohms, gigohms and CGS units of electrical resistance and impedance.

1 ohm = 0.001 kilohms

Most used resistance units

Popular resistance conversions

What is resistance?

Electrical resistance is how strongly a component opposes electric current. The SI unit is the ohm (Ω), named after Georg Ohm: a resistance of one ohm lets one ampere flow when one volt is applied. The same unit measures impedance and reactance in AC circuits.

Resistors are marked in ohms, kilohms (kΩ) and megohms (MΩ); a common value like 4.7 kΩ is often written "4k7" on schematics.

Resistance units from smallest to largest

Every proportional resistance unit on the site, ordered by size and expressed in ohms.

  1. Abohm 1 × 10-9 Ω
  2. Microhm 0.000001 Ω
  3. Milliohm 0.001 Ω
  4. Ohm 1 Ω
  5. Kilohm 1,000 Ω
  6. Von Klitzing constant 25,812.8 Ω
  7. Megohm 1,000,000 Ω
  8. Gigohm 1,000,000,000 Ω
  9. Statohm 898,755,000,000 Ω
  10. Teraohm 1,000,000,000,000 Ω

All 10 resistance units

SI

Other

Frequently asked questions

How many ohms is 1 kΩ?

1,000 Ω. 1 MΩ = 1,000 kΩ = 1,000,000 Ω.

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