UnitsConverter

Hertz to Revolutions per Second Converter

Convert hertz to rps with our free online frequency converter.

Quick Answer

1 Hertz = 1 rps

Formula: Hertz ร— conversion factor = Revolutions per Second

Use the calculator below for instant, accurate conversions.

Our Accuracy Guarantee

All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: February 2026Reviewed by: Sam Mathew, Software Engineer

Hertz to Revolutions per Second Calculator

How to Use the Hertz to Revolutions per Second Calculator:

  1. Enter the value you want to convert in the 'From' field (Hertz).
  2. The converted value in Revolutions per Second will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Frequency category.
  4. Click the swap button (โ‡Œ) to reverse the conversion direction.
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How to Convert Hertz to Revolutions per Second: Step-by-Step Guide

Converting Hertz to Revolutions per Second involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

rps = Hz ร— 1

Example Calculation:

1 Hz = 1 rps

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

Need to convert to other frequency units?

View all Frequency conversions โ†’
๐Ÿ“Š Frequency Table

Print-friendly conversion reference

๐Ÿ“‹ Unit Symbols

Copy Hz & rps symbols

What is a Hertz and a Revolutions per Second?

1 Hz = 1 cycle per second = 1/second = sโปยน

Metric prefixes:

  • 1,000 Hz = 1 kHz (kilohertz)
  • 1,000,000 Hz = 1 MHz (megahertz)
  • 1,000,000,000 Hz = 1 GHz (gigahertz)

1 RPS = 1 revolution per second = 1 Hz = 60 RPM = 360ยฐ/second = 2ฯ€ radians/second

RPS vs RPM vs Hz

Understanding the relationship between rotational measurements:

  • RPM = cycles per MINUTE (most common for machinery)
  • RPS = cycles per SECOND (more convenient for high speeds)
  • Hz = cycles per SECOND (generic frequency term)
  • Conversion: 1 RPS = 60 RPM = 1 Hz (numerically identical to Hz)
  • Why three units? Different fields and speed ranges use different conventions

Note: The Hertz is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Revolutions per Second belongs to the imperial/US customary system.

Common Uses and Applications: hertz vs rps

Explore the typical applications for both Hertz (imperial/US) and Revolutions per Second (imperial/US) to understand their common contexts.

Common Uses for hertz

AC Power: 50 Hz (Europe/Asia) or 60 Hz (Americas) - frequency of alternating current electricity. Audio: 20 Hz - 20,000 Hz (20 kHz) is the human hearing range. Display Refresh: Monitor and TV refresh rates (60 Hz, 120 Hz, 144 Hz, 240 Hz). Vibrations: Engine vibrations, seismic waves, mechanical oscillations measured in Hz.

When to Use rps

High-Speed Turbines: Gas turbines, steam turbines, hydroelectric turbines (hundreds to thousands of RPS). Centrifuges: Ultra-high-speed laboratory and industrial centrifuges for separation. Physics: Rotational dynamics, angular velocity, kinetic energy calculations. Machinery: High-speed motors, spindles, grinders, pumps.

Additional Unit Information

About Hertz (Hz)

How do I convert Hz to kHz?

Formula: kHz = Hz รท 1,000

Examples:

  • 1,000 Hz = 1 kHz
  • 440 Hz = 0.44 kHz (A4 musical note)
  • 20,000 Hz = 20 kHz (upper hearing limit)
  • 100 Hz = 0.1 kHz

Hz to kHz converter โ†’

What is 60 Hz?

60 Hz is the AC power frequency in North America, parts of South America, and some Asian countries. The electricity alternates direction 60 times per second.

Also used for:

  • Standard monitor refresh rate (60 frames/second)
  • Fluorescent light flicker frequency
  • Basis for NTSC video standard

Countries using 60 Hz: USA, Canada, Mexico, Brazil, Japan (East), Saudi Arabia, Philippines, Taiwan

How many Hz can humans hear?

Human hearing range: 20 Hz - 20,000 Hz (20 kHz)

Age-dependent hearing:

  • Young children: 20 Hz - 20 kHz (full range)
  • Adults (25+): 20 Hz - 16 kHz
  • Adults (50+): 20 Hz - 12 kHz
  • Adults (70+): 20 Hz - 8 kHz

Sound categories:

  • Infrasound: <20 Hz (inaudible to humans)
  • Audible range: 20-20,000 Hz
  • Ultrasound: >20,000 Hz (inaudible to humans)

Speech range: 300-3,400 Hz (telephone bandwidth)

Hz to kHz converter โ†’

Why is AC power 50 Hz or 60 Hz?

Historical reasons:

  • Early generators were designed for efficient transformer operation
  • 50/60 Hz prevents visible light flicker (persistence of vision)
  • Low enough for simple transformer design
  • High enough to prevent flicker

50 Hz vs 60 Hz:

  • 50 Hz: Slightly more efficient for power transmission
  • 60 Hz: Motors are slightly more compact and lighter
  • Both work well for incandescent lights, motors, and transformers

The split is historical - different pioneers chose different standards in the 1890s, and infrastructure locked in these frequencies.

How do I convert Hz to RPM?

Formula: RPM = Hz ร— 60

Examples:

  • 50 Hz = 3,000 RPM (synchronous motor speed at 50 Hz)
  • 60 Hz = 3,600 RPM (synchronous motor speed at 60 Hz)
  • 1 Hz = 60 RPM

Hz to RPM converter โ†’

About Revolutions per Second (rps)

How do I convert RPS to RPM?

Formula: RPM = RPS ร— 60

Examples:

  • 1 RPS = 60 RPM
  • 10 RPS = 600 RPM
  • 120 RPS = 7,200 RPM (hard drive)

Reverse: RPS = RPM รท 60

RPS to RPM converter โ†’

Is RPS the same as Hz?

Yes, numerically: 1 RPS = 1 Hz

Different context:

  • RPS: Rotational motion (spinning, revolving)
  • Hz: General frequency (oscillations, waves, vibrations)

Example:

  • A wheel spinning at 10 RPS = 10 Hz rotational frequency
  • A sound wave at 440 Hz = 440 oscillations per second (not rotation)

RPS to Hz converter โ†’

How do I convert RPS to radians per second?

Formula: rad/s = RPS ร— 2ฯ€

Examples:

  • 1 RPS = 2ฯ€ rad/s โ‰ˆ 6.283 rad/s
  • 10 RPS = 62.83 rad/s
  • 100 RPS = 628.3 rad/s

One full revolution = 2ฯ€ radians = 360 degrees

RPS to rad/s converter โ†’

When should I use RPS instead of RPM?

Use RPS when:

  • High-speed applications (>6,000 RPM = >100 RPS)
  • Physics calculations (frequency, angular velocity)
  • Scientific contexts
  • Values are more convenient (e.g., 120 RPS vs 7,200 RPM)

Use RPM when:

  • Automotive (standard for engines)
  • General machinery
  • Industry standards require RPM
  • Lower speeds (<6,000 RPM)

Both are correct; choose based on convention and convenience.

Conversion Table: Hertz to Revolutions per Second

Hertz (Hz)Revolutions per Second (rps)
0.50.5
11
1.51.5
22
55
1010
2525
5050
100100
250250
500500
1,0001,000

People Also Ask

How do I convert Hertz to Revolutions per Second?

To convert Hertz to Revolutions per Second, enter the value in Hertz in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our frequency converter page to convert between other units in this category.

Learn more โ†’

What is the conversion factor from Hertz to Revolutions per Second?

The conversion factor depends on the specific relationship between Hertz and Revolutions per Second. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Revolutions per Second back to Hertz?

Yes! You can easily convert Revolutions per Second back to Hertz by using the swap button (โ‡Œ) in the calculator above, or by visiting our Revolutions per Second to Hertz converter page. You can also explore other frequency conversions on our category page.

Learn more โ†’

What are common uses for Hertz and Revolutions per Second?

Hertz and Revolutions per Second are both standard units used in frequency measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our frequency converter for more conversion options.

For more frequency conversion questions, visit our FAQ page or explore our conversion guides.

Helpful Conversion Guides

Learn more about unit conversion with our comprehensive guides:

๐Ÿ“š How to Convert Units

Step-by-step guide to unit conversion with practical examples.

๐Ÿ”ข Conversion Formulas

Essential formulas for frequency and other conversions.

โš–๏ธ Metric vs Imperial

Understand the differences between measurement systems.

โš ๏ธ Common Mistakes

Learn about frequent errors and how to avoid them.

View All Guides โ†’

All Frequency Conversions

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Other Frequency Units and Conversions

Explore other frequency units and their conversion options:

Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Reference on Constants, Units and Uncertainty

National Institute of Standards and Technology โ€” Fundamental physical constants and unit conversions

BIPM SI Units

Bureau International des Poids et Mesures โ€” International System of Units (SI) definitions and standards

ISO 80000

International Organization for Standardization โ€” Quantities and units international standards series

Last verified: February 19, 2026