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Frequency converter

microhertz to millihertz

Convert microhertz (μHz) to millihertz (mHz). Use an editable frequency converter, conversion formula, and reference table.

0.001

1 μHz = 0.001 mHz

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Conversion formula

mHz = μHz × 0.001

One microhertz equals 0.001 millihertz. Multiply your value in microhertz by this factor to get millihertz. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 microhertz:
5 × 0.001 = 0.005 mHz

Conversion table

microhertz (μHz)millihertz (mHz)
0.010.00001
0.10.0001
10.001
20.002
50.005
100.01
250.025
500.05
1000.1
10001

About these measurements

Frequency measures cycles per second.

The base reference used here is the hertz. One microhertz is 0.000001 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 μHz to mHz?

Multiply the quantity in μHz by 0.001. 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 microhertz 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.

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