Electrical Resistance Converter — Ohms, kΩ & MΩ

Convert between ohms, milliohms, kiloohms, megaohms, and gigaohms.

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How this conversion works. Every unit is converted through the ohm using exact SI prefixes; CGS units use factors from NIST Special Publication 811.

How to use

  1. Pick the unit you are converting from, such as Gigaohm (GΩ) or Megaohm (MΩ).
  2. Type the value and every other unit updates as you type.
  3. Copy the figure you need, or use the swap button to reverse the direction, Statohm (statΩ) included.

Frequently asked questions

How do I convert kiloohm to ohm?

1 kiloohm = 1000 ohm. Choose "Kiloohm (kΩ)" as From and "Ohm (Ω)" as To, type a value, and the result updates instantly.

What does 4K7 mean on a schematic?

The letter marks the decimal point: 4K7 = 4.7 kΩ = 4,700 Ω. Similarly 2M2 = 2.2 MΩ and R47 = 0.47 Ω.

When do milliohms matter?

Current-sense shunts, PCB traces, and battery internal resistance all live in the mΩ range — a 10 mΩ shunt at 10 A drops 100 mV and dissipates 1 W.

Is my data sent to a server?

No. Conversions run entirely in your browser using fixed factors — nothing is uploaded or logged.

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