rpm to hertz | Exact Decimal + Formula

1 RPM (Revolutions/min) = 0.016667 Hertz

RPM to hertz is used in motor specifications, vibration analysis, and rotational-speed comparisons.

About RPM (Revolutions/min) and Hertz

RPM (Revolutions/min) (rpm)

RPM (revolutions per minute) measures rotational speed; one RPM is 1/60 hertz.

Where it's used: Car engines, hard drives, washing machines, and any rotating machinery.

Hertz (Hz)

The hertz measures cycles per second.

Where it's used: Audio frequencies, processor clock rates, and AC power mains (50/60 Hz).

Frequency Converter

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Precision

Formula

Hz = rpm × 0.016666667

To convert RPM (Revolutions/min) to Hertz, use the formula displayed above.

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RPM (Revolutions/min) to Hertz: Quick Reference Table

RPM (Revolutions/min)	Hertz (Decimal)	Fraction	Real-world equivalent
0.001 rpm	0.000017 Hz	-	fractional unit measurement
0.01 rpm	0.000167 Hz	-	fractional unit measurement
0.1 rpm	0.001667 Hz	-	fractional unit measurement
0.5 rpm	0.008333 Hz	-	fractional unit measurement
1 rpm	0.016667 Hz	-	fractional unit measurement
2 rpm	0.033333 Hz	-	fractional unit measurement
5 rpm	0.083333 Hz	-	fractional unit measurement
10 rpm	0.166667 Hz	-	fractional unit measurement
25 rpm	0.416667 Hz	-	fractional unit measurement
50 rpm	0.833333 Hz	-	fractional unit measurement
100 rpm	1.666667 Hz	-	standard single unit scale
250 rpm	4.166667 Hz	-	standard single unit scale
500 rpm	8.333333 Hz	-	standard single unit scale
1000 rpm	16.666667 Hz	-	multiple unit increments

rpm to Hz Formula and Examples

Direct Formula Hz = rpm × 0.016666667

Inverse Formula rpm = Hz × 60

Mental Math Shortcut

Divide the value by roughly 60 to quickly estimate the converted result.

Common RPM (Revolutions/min) to Hertz Calculations

5 rpm = 0.083333 Hz
10 rpm = 0.166667 Hz
50 rpm = 0.833333 Hz
100 rpm = 1.666667 Hz
500 rpm = 8.333333 Hz

Precision & Practical Use

For example, 10 rpm = 0.166667 Hz — roughly fractional unit measurement.

Results are computed to up to 9 decimal places. Round to the precision of your measuring instrument — for most frequency applications, 2–3 significant figures are plenty.

How to Convert RPM (Revolutions/min) to Hertz

How many hertzes are in one rpm (revolutions/min)?

One RPM (Revolutions/min) (rpm) equals 0.016667 Hertz (Hz). To convert rpm (revolutions/min)s to hertzes, multiply the rpm (revolutions/min) value by 0.016667.

How do I convert RPM (Revolutions/min) to Hertz?

Multiply your rpm (revolutions/min) value by 0.016667 to get the result in Hertz: Hz = rpm × 0.016667. For example, 5 rpm = 0.083333 Hz.

What is the formula for converting rpm to Hz?

The conversion formula is Hz = rpm × 0.016667. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for rpm to Hz?