maratoolHow to convert ohms, kΩ, and MΩ resistor values
Type a resistance — read mΩ, Ω, kΩ, MΩ, or GΩ instantly.
Datasheets write 4K7, multimeters read 4.698 kΩ, and simulations want plain ohms. The Resistance Converter shifts prefixes exactly.
How it works
- Pick units — "Kiloohm (kΩ)" to "Ohm (Ω)", or any other pair.
- Type a value — the result updates as you type, with swap and copy.
- Copy — one click, with "Copied!" feedback.
Electrical resistance conversion factors
Every unit converts through the ohm (the base unit). To convert A → B, multiply by A's factor and divide by B's:
| Unit | = this many ohms |
|---|---|
| Gigaohm (GΩ) | 1.0000 × 10^9 |
| Megaohm (MΩ) | 1,000,000 |
| Kiloohm (kΩ) | 1,000 |
| Ohm (Ω) | 1 |
| Milliohm (mΩ) | 0.001 |
| Microohm (µΩ) | 1.0000 × 10^-6 |
| Abohm (abΩ) | 1.0000 × 10^-9 |
| Statohm (statΩ) | 8.9876 × 10^11 |
When you need it
Common ranges: pull-up resistors 1–100 kΩ, current shunts 1–100 mΩ, insulation resistance above 1 MΩ (megger tests read GΩ on good cable). Each prefix step is ×1,000.
Sources & methodology
Conversion factors follow NIST Special Publication 811; exact-by-definition factors are marked in the tool itself. All math runs client-side in your browser — nothing is uploaded.
More conversion guides
- How to convert siemens, mho, and microsiemens
- How to convert milliamps to amps (and other current units)
- How to convert volts, millivolts, and kilovolts
Or browse everything at once in the new unit & sizing converters roundup.