• Hz   mHz
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Hertz (Hz), the unit of frequency, measures the number of cycles per second. It’s named after Heinrich Hertz, the physicist who first proved the existence of electromagnetic waves. In 1888, his groundbreaking experiments paved the way for the development of radio, television, and other communication technologies. Fascinatingly, the concept of frequency extends well beyond sound — it’s also crucial in physics, describing phenomena such as light waves and even the rotation of electron orbitals.

In our everyday lives, Hertz is everywhere. When you listen to music, the pitch you hear is influenced by the frequency in Hertz, with middle C on a piano vibrating at about 261.6 Hz. Even your household electrical system operates at frequencies of 50 or 60 Hz, depending on your region. This widespread influence underscores how integral Hertz is to both technology and daily experiences.

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The millihertz (mHz) is a unit of frequency equal to one-thousandth of a hertz. While it sounds minuscule, frequencies at this scale have critical applications in science and technology. For example, the Earth’s rotation slows down over time, a phenomenon observable at the millihertz level. Measuring such tiny variations requires precise timing methods, akin to those used in atomic clocks that define international time standards.

In the realm of biology, certain very slow rhythms in the human body, such as some brainwave patterns, occur at millihertz frequencies. Understanding these subtle oscillations can provide insights into sleep cycles and neurological conditions. Millihertz frequencies are also employed in geophysics for monitoring seismic activities and gravitational wave detection, highlighting their significance in uncovering the mysteries of the universe.

> Hertz to Millihertz Conversion Table

Hertz Millihertz
0 Hz 0 mHz
10 Hz 10000 mHz
20 Hz 20000 mHz
30 Hz 30000 mHz
40 Hz 40000 mHz
50 Hz 50000 mHz
60 Hz 60000 mHz
70 Hz 70000 mHz
80 Hz 80000 mHz
90 Hz 90000 mHz
100 Hz 100000 mHz
110 Hz 110000 mHz
120 Hz 120000 mHz
130 Hz 130000 mHz
140 Hz 140000 mHz
150 Hz 150000 mHz
160 Hz 160000 mHz
170 Hz 170000 mHz
180 Hz 180000 mHz
190 Hz 190000 mHz
200 Hz 200000 mHz
210 Hz 210000 mHz
220 Hz 220000 mHz
230 Hz 230000 mHz
240 Hz 240000 mHz
250 Hz 250000 mHz
260 Hz 260000 mHz
270 Hz 270000 mHz
280 Hz 280000 mHz
290 Hz 290000 mHz
300 Hz 300000 mHz
310 Hz 310000 mHz
320 Hz 320000 mHz
330 Hz 330000 mHz
340 Hz 340000 mHz
350 Hz 350000 mHz
360 Hz 360000 mHz
370 Hz 370000 mHz
380 Hz 380000 mHz
390 Hz 390000 mHz
400 Hz 400000 mHz
410 Hz 410000 mHz
420 Hz 420000 mHz
430 Hz 430000 mHz
440 Hz 440000 mHz
450 Hz 450000 mHz
460 Hz 460000 mHz
470 Hz 470000 mHz
480 Hz 480000 mHz
490 Hz 490000 mHz
500 Hz 500000 mHz
510 Hz 510000 mHz
520 Hz 520000 mHz
530 Hz 530000 mHz
540 Hz 540000 mHz
550 Hz 550000 mHz
560 Hz 560000 mHz
570 Hz 570000 mHz
580 Hz 580000 mHz
590 Hz 590000 mHz
600 Hz 600000 mHz
610 Hz 610000 mHz
620 Hz 620000 mHz
630 Hz 630000 mHz
640 Hz 640000 mHz
650 Hz 650000 mHz
660 Hz 660000 mHz
670 Hz 670000 mHz
680 Hz 680000 mHz
690 Hz 690000 mHz
700 Hz 700000 mHz
710 Hz 710000 mHz
720 Hz 720000 mHz
730 Hz 730000 mHz
740 Hz 740000 mHz
750 Hz 750000 mHz
760 Hz 760000 mHz
770 Hz 770000 mHz
780 Hz 780000 mHz
790 Hz 790000 mHz
800 Hz 800000 mHz
810 Hz 810000 mHz
820 Hz 820000 mHz
830 Hz 830000 mHz
840 Hz 840000 mHz
850 Hz 850000 mHz
860 Hz 860000 mHz
870 Hz 870000 mHz
880 Hz 880000 mHz
890 Hz 890000 mHz
900 Hz 900000 mHz
910 Hz 910000 mHz
920 Hz 920000 mHz
930 Hz 930000 mHz
940 Hz 940000 mHz
950 Hz 950000 mHz
960 Hz 960000 mHz
970 Hz 970000 mHz
980 Hz 980000 mHz
990 Hz 990000 mHz
1000 Hz 1000000 mHz