hertz to millihertz
Convert hertz (Hz) to millihertz (mHz). Use an editable frequency converter, conversion formula, and reference table.
1 Hz = 1,000 mHz
Conversion formula
One hertz equals 1,000 millihertz. Multiply your value in hertz by this factor to get millihertz. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 hertz:5 × 1,000 = 5,000 mHz
Conversion table
| hertz (Hz) | millihertz (mHz) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1000 | 1,000,000 |
About these measurements
Frequency measures cycles per second.
The base reference used here is the hertz. One hertz is 1 base units; one millihertz is 0.001 base units.
Important distinctions
Frequency is the reciprocal of period, not angular velocity.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert Hz to mHz?
Multiply the quantity in Hz by 1,000. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the millihertz to hertz converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
