Convert 21 Revolutions/Minute (rpm) to Revolutions/Second (rps).

21 Revolutions/Minute equals 0.35 Revolutions/Second. Multiply 21 by 0.0166666667.

What is 21 Revolutions/Minute in Revolutions/Second?

21 Revolutions/Minute equals 0.35 Revolutions/Second.

How many Revolutions/Seconds are in 1 Revolutions/Minute?

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

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

The formula to convert Revolutions/Minute to Revolutions/Second is: rps = rpm × 0.0166666667. For example, to convert 10 Revolutions/Minutes to Revolutions/Seconds, you would multiply 10 by 0.0166666667.

What are the common uses of Revolutions/Minute?

The Revolutions/Minute is commonly used in frequency calculations, engineering and science, education.

What is 21 Revolutions/Minute in Revolutions/Second?

To convert 21 Revolutions/Minutes to Revolutions/Seconds, multiply by 0.0166666667. Therefore, 21 Revolutions/Minute (rpm) equals 0.35 Revolutions/Second (rps).

21 Revolutions/Minute to Revolutions/Second

Worked example: converting Revolutions/Minute to Revolutions/Second

Step 1 — start with the formula. rps = rpm × 0.0166666667
Step 2 — substitute your figure. 21 rpm × 0.0166666667
Step 3 — read the result. 21 rpm = 0.35 rps
Step 4 — check it in reverse. rpm = rps × 60 returns 21 rpm, which matches the figure you started with.

Frequency Converter

13 units available

Decimals:

From

To

0.35

21 rpm = 0.35 rps

Formula:

rps = rpm × 0.0166666667

With your value: 21 rpm = 0.35 rps

Other Revolutions/Minute to Revolutions/Second conversions

15 rpm to rps 16 rpm to rps 18 rpm to rps 20 rpm to rps 24 rpm to rps 25 rpm to rps 26 rpm to rps Full Revolutions/Minute to Revolutions/Second converter

Revolutions/Minute to Revolutions/Second Conversion Table

Revolutions/Minute (rpm)	Revolutions/Second (rps)
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

Revolutions/Second to Revolutions/Minute Conversion Table

Revolutions/Second (rps)	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

Revolutions/Second (rps)

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

How to Convert Revolutions/Minute to Revolutions/Second

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

Formula: rps = rpm × 0.0166666667

Reverse: rpm = rps × 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 rps

Revolutions/Minute and Revolutions/Second Relationship

This calculation facilitates standardized conversion between recognized units of frequency. Since 1 Revolutions/Minute represents a fraction of a Revolutions/Second (1 Revolutions/Second ≈ 60 Revolutions/Minutes), the Revolutions/Second is the larger measurement interval. Understanding the relationship between Revolutions/Minute and Revolutions/Second is essential for accurate calculations in physics, engineering, commerce, and daily applications.

About Revolutions/Minute

The Revolutions/Minute (symbol: rpm) is a recognized unit in the Standard measurement framework, utilized within frequency applications for precision and standardized data representation.

Common uses of Revolutions/Minute: frequency calculations, engineering and science, education.

About Revolutions/Second

The Revolutions/Second (symbol: rps) is a recognized unit in the Standard measurement framework, utilized within frequency applications for precision and standardized data representation.

Common uses of Revolutions/Second: frequency calculations, engineering and science, education.

Frequently Asked Questions

What is 21 Revolutions/Minute in Revolutions/Second?: 21 Revolutions/Minute equals 0.35 Revolutions/Second.
How many Revolutions/Seconds are in 1 Revolutions/Minute?: There are exactly 0.0166666667 Revolutions/Seconds in 1 Revolutions/Minute. This means the conversion factor from Revolutions/Minute to Revolutions/Second is 0.0166666667.
What is the formula to convert Revolutions/Minute to Revolutions/Second?: The formula to convert Revolutions/Minute to Revolutions/Second is: rps = rpm × 0.0166666667. For example, to convert 10 Revolutions/Minutes to Revolutions/Seconds, you would multiply 10 by 0.0166666667.
What is a Revolutions/Minute?: The Revolutions/Minute (symbol: rpm) is a recognized unit in the Standard measurement framework, utilized within frequency applications for precision and standardized data representation.
What is a Revolutions/Second?: The Revolutions/Second (symbol: rps) is a recognized unit in the Standard measurement framework, utilized within frequency applications for precision and standardized data representation.
What are the common uses of Revolutions/Minute?: The Revolutions/Minute is commonly used in frequency calculations, engineering and science, education.