Inductance converter
Convert µH to mH — microhenry to millihenry
Convert microhenries (µH) to millihenries (mH) instantly. 1 µH = 0.001 mH. Free calculator with formula, conversion table, and H base-unit equivalent.
Also searched as: uH to mH, micro henry to milli henry, micro to milli henry, micro henrys to milli henrys.
- Scientific Notation
- 4.7 × 10⁰ mH
- Real-World Context
- 1 µH is roughly the inductance of an RF tuning coil
- Step-by-Step
- 1. Start with 4,700 µH. 2. Since 1 micro-unit = 1/1,000th of a milli-unit, divide by 1,000. 3. 4,700 ÷ 1,000 = 4.7 mH.
- Formula Used
- ÷ 1,000 (micro = 10⁻⁶, milli = 10⁻³)
Quick Conversions
| Mega | 4.7 × 10⁻⁹ MH |
|---|---|
| Kilo | 0.0000047 kH |
| Base Unit (henries) | 0.0047 henries |
| Nano | 4,700,000 nH |
| Pico | 4.7 × 10⁹ pH |
Quick µH to mH answer
1 µH = 0.001 mH
divide by 1,000
4,700 µH = 4.7 mH
microhenry to millihenry formula
Milli is 10^-3 and micro is 10^-6. They are three powers of ten apart, so every µH to mH conversion uses the exact factor 1,000.
mH = µH ÷ 1,000
4,700 µH ÷ 1,000 = 4.7 mHµH to mH table
Common values for microhenries converted to millihenriesand the base unit (H).
| microhenries | millihenries | henries |
|---|---|---|
| 1 µH | 0.001 mH | 0.000001 H |
| 10 µH | 0.01 mH | 0.00001 H |
| 100 µH | 0.1 mH | 0.0001 H |
| 1,000 µH | 1 mH | 0.001 H |
| 2,000 µH | 2 mH | 0.002 H |
| 5,000 µH | 5 mH | 0.005 H |
| 10,000 µH | 10 mH | 0.01 H |
| 20,000 µH | 20 mH | 0.02 H |
| 50,000 µH | 50 mH | 0.05 H |
| 100,000 µH | 100 mH | 0.1 H |
| 1,000,000 µH | 1,000 mH | 1 H |
Understanding microhenries and millihenries
A microhenry (µH) is 10⁻⁶ of the base unit (henry) and a millihenry (mH) is 10⁻³. They sit three powers of ten apart, so going from µH to mH means dividing by exactly 1,000 — move the decimal point three places to the left.
Microhenries are the switching-converter and RF unit. Buck-converter inductors land between roughly 1 and 47 µH, chosen from the ripple-current target, and PCB trace inductance of about 1 nH per millimetre starts to matter at the same scale.
This calculator shifts the decimal exponent rather than multiplying in binary floating point, so 4,700 µH returns exactly 4.7 mH — not a value with a trailing rounding error.
Common µH to mH mistake
An inductor's marked value applies below its saturation current. Converting mH to µH cleanly and then ignoring the saturation rating gives an inductance that collapses under load — the arithmetic is exact, the part is not.
When to use µH vs mH
microhenries and millihenries are used for coils, filters, switching converters, RF circuits, and inductor datasheets. Use the larger milli unit when the number becomes easier to scan, and the smaller micro unit when you need finer detail.