Milliohm to Megaohm (mΩ to MΩ)
Convert mΩ to MΩ — Electric Resistance converter
Also written as mohm to Mohm.
One milliohm equals 1.000000e-9 MΩ, so to convert milliohms to megaohms you multiply the value by 1.000000e-9. A milliohm is smaller than a megaohm — going the other way, 1 MΩ = 1000000000 mΩ. For example, 10 mΩ = 1.000000e-8 MΩ and 50 mΩ = 5.000000e-8 MΩ.
1 mΩ = 1.000000e-9 MΩ
Milliohm to Megaohm formula
1 Milliohm = 1.000000e-9 MΩ
Worked examples
- 25 mΩ = 2.500000e-8 MΩ
- 100 mΩ = 1.000000e-7 MΩ
Milliohm to Megaohm conversion table
| Milliohm (mΩ) | Megaohm (MΩ) |
|---|---|
| 1 | 1.000000e-9 |
| 2 | 2.000000e-9 |
| 3 | 3.000000e-9 |
| 5 | 5.000000e-9 |
| 8 | 8.000000e-9 |
| 10 | 1.000000e-8 |
| 12 | 1.200000e-8 |
| 15 | 1.500000e-8 |
| 20 | 2.000000e-8 |
| 25 | 2.500000e-8 |
| 50 | 5.000000e-8 |
| 100 | 1.000000e-7 |
| 250 | 2.500000e-7 |
| 500 | 5.000000e-7 |
| 1000 | 0.000001 |
Resistor notation and where each scale is used
Resistor values are usually written without a decimal point, because decimal points disappear on smudged schematics and photocopies. BS 1852 notation puts the multiplier where the point would go: 4R7 is 4.7 Ω, 4K7 is 4.7 kΩ, and 4M7 is 4.7 MΩ. A value written plainly as "4.7" with no unit is ambiguous and worth checking.
The scale is decimal throughout: 1 MΩ = 1,000 kΩ = 1,000,000 Ω, and 1 Ω = 1,000 mΩ = 1,000,000 µΩ. On this page, 1 mΩ = 1.000000e-9 MΩ.
Milliohms and microohms are the domain of shunts, contact resistance, busbars and battery internal resistance. At these values the resistance of your test leads is no longer negligible, which is why they are measured with a four-wire (Kelvin) connection rather than a standard multimeter.
Megaohms and gigaohms show up in insulation testing and high-impedance input specifications. Readings at this scale are sensitive to humidity and to surface contamination on the board, so they are quoted with test voltage and conditions attached.
Frequently asked questions
How many megaohms are in one milliohm?
One milliohm equals 1.000000e-9 megaohms (MΩ).
How many milliohms are in one megaohm?
One megaohm equals 1000000000 milliohms (mΩ).
How do you convert milliohms to megaohms?
1 Milliohm = 1.000000e-9 MΩ. Use the calculator above for any value.
What is 5 mΩ in MΩ?
5 mΩ = 5.000000e-9 MΩ.
What is 100 mΩ in MΩ?
100 mΩ = 1.000000e-7 MΩ.
What is 10 mΩ in MΩ?
10 mΩ = 1.000000e-8 MΩ.
What is 1000 mΩ in MΩ?
1000 mΩ = 0.000001 MΩ.
Is a milliohm bigger than a megaohm?
No. A milliohm is smaller — one milliohm equals 1.000000e-9 megaohms, while one megaohm equals 1000000000 milliohms.