Convert 9 Revolutions/Minute (rpm) to Hertz (Hz).

9 Revolutions/Minute equals 0.15 Hertz. Multiply 9 by 0.0166666667.

9 Revolutions/Minute = 0.15 Hertz

Worked example: converting Revolutions/Minute to Hertz

Step 1 — start with the formula. Hz = rpm × 0.0166666667
Step 2 — substitute your figure. 9 rpm × 0.0166666667
Step 3 — read the result. 9 rpm = 0.15 Hz
Step 4 — check it in reverse. rpm = Hz × 60 returns 9 rpm, which matches the figure you started with.

Frequency Converter

13 units available

Decimals:

From

To

0.15

9 rpm = 0.15 Hz

Formula:

Hz = rpm × 0.0166666667

With your value: 9 rpm = 0.15 Hz

Other Revolutions/Minute to Hertz conversions

5 rpm to Hz 6 rpm to Hz 7 rpm to Hz 8 rpm to Hz 10 rpm to Hz 11 rpm to Hz 12 rpm to Hz Full Revolutions/Minute to Hertz converter

Revolutions/Minute to Hertz Conversion Table

Revolutions/Minute (rpm)	Hertz (Hz)
0.5	0.008333
1	0.016667
2	0.033333
5	0.083333
10	0.166667
15	0.25
20	0.333333
25	0.416667
50	0.833333
100	1.666667
250	4.166667
500	8.333333
1000	16.666667

Hertz to Revolutions/Minute Conversion Table

Hertz (Hz)	Revolutions/Minute (rpm)
0.5	30
1	60
2	120
5	300
10	600
15	900
20	1,200
25	1,500
50	3,000
100	6,000
250	15,000
500	30,000
1000	60,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Revolutions/Minute (rpm)

Frequency

SI definition

Derived from the hertz (1 Hz = 1 s⁻¹), traceable to the SI second.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Hertz (Hz)

Frequency

SI definition

Derived from the hertz (1 Hz = 1 s⁻¹), traceable to the SI second.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Standards and context behind Revolutions/Minute to Hertz

Rotational speed: 1 Hz = 60 rpm; motor nameplates use rpm while control systems use hertz.

How to Convert Revolutions/Minute to Hertz

To convert from Revolutions/Minute (rpm) to Hertz (Hz), multiply the value by 0.0166666667.

Formula: Hz = rpm × 0.0166666667

Reverse: rpm = Hz × 60

Step-by-Step Example

Start with your value in Revolutions/Minute. For example: 5 rpm
Multiply by the conversion factor: 5 x 0.0166666667
The result is: 0.083333 Hz

About Revolutions/Minute

The revolutions/minute (rpm) is a unit of frequency. One revolutions/minute equals 0.01666666667 hertzs. UnitConvertLab converts it against every other frequency unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: frequency calculations, engineering and science, education.

About Hertz

The hertz (Hz) is a unit of frequency. One hertz equals 1 hertz. UnitConvertLab converts it against every other frequency unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: frequency calculations, engineering and science, education.

Frequently Asked Questions

What is 9 Revolutions/Minute in Hertz?

9 Revolutions/Minute equals 0.15 Hertz.

How many Hertz are in 1 Revolutions/Minute?

There are exactly 0.0166666667 Hertz in 1 Revolutions/Minute. This means the conversion factor from Revolutions/Minute to Hertz is 0.0166666667.

What is the formula to convert Revolutions/Minute to Hertz?

The formula to convert Revolutions/Minute to Hertz is: Hz = rpm × 0.0166666667. For example, to convert 10 Revolutions/Minute to Hertz, you would multiply 10 by 0.0166666667.

What is a Revolutions/Minute?