Hertz to Millihertz Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert hertz [Hz] to millihertz [mHz] or millihertz [mHz] to hertz [Hz]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 hertz [Hz] = 1,000 millihertz [mHz]1 millihertz [mHz] = 0.001 hertz [Hz]

Convert hertz to millihertz

There are two simple ways to convert hertz [Hz] to millihertz [mHz]. In the first calculation method, the value in hertz [Hz] is divided by 0.001. The second method multiplies the value in hertz [Hz] by 1,000.

  • Millihertz [mHz] = hertz [Hz] ÷ 0.001
  • Millihertz [mHz] = hertz [Hz] * 1,000

Convert millihertz to hertz

Converting millihertz [mHz] to hertz [Hz] is easy and can be done in two ways. The first method involves multiplication, whereby the value in millihertz [mHz] is multiplied by 0.001. The second variant is a division. Here, the value in millihertz [mHz] is divided by 1,000.

  • Hertz [Hz] = millihertz [mHz] * 0.001
  • Hertz [Hz] = millihertz [mHz] ÷ 1,000

Converter

Decimal places

How it's calculated

Factor: 
1,000
Millihertz=Hertz*1,000
Hertz=
Millihertz1,000

To all available units

Hertz

Nanohertz

Hertz

Picohertz

Hertz

Radians per day

Hertz

Radians per hour

Hertz

Radians per minute