Convert Revolutions per second to Hertz (rotational)
Instantly convert Revolutions per second (rev/s) to Hertz (rotational) (Hz) with our free online calculator.
Formula: rev/s to Hz — multiply by 1
Reference Table
| Revolutions per second (rev/s) | Hertz (rotational) (Hz) |
|---|---|
| 1 | 1 |
| 5 | 5 |
| 10 | 10 |
| 25 | 25 |
| 50 | 50 |
| 100 | 100 |
How to Convert Revolutions per second to Hertz (rotational)
Formula
To convert Revolutions per second (rev/s) to Hertz (rotational) (Hz): multiply by 1
Step-by-Step
- Start with your value in Revolutions per second (rev/s).
- Multiply by 1 to perform the conversion.
- The result is your value expressed in Hertz (rotational) (Hz).
Conversion Factor
1 rev/s = 1 Hz
Reverse Factor
1 Hz = 1 rev/s
Worked Example
Convert 25 Revolutions per second to Hertz (rotational): 25 rev/s = 25 Hz
About Revolution per second (rev/s)
Rotational speed expressed in full turns per second (1 rev/s = 60 RPM = 2π rad/s ≈ 6.283 rad/s = 360 deg/s). Rev/s is used in specialized contexts where RPM feels too slow or where the per-second timebase matches the calculation's other time units. Common applications: laboratory centrifuges (Beckman Coulter Avanti J-26 max rotor speed ~5,000 RPM = 83 rev/s; Sorvall RC-6+ ~16,000 RPM = 267 rev/s; ultracentrifuges like Beckman Optima MAX 150,000 RPM = 2,500 rev/s for protein and nucleic-acid separation), automotive turbochargers (small passenger-car turbos run 150,000-250,000 RPM = 2,500-4,200 rev/s; truck/marine turbos slower at 30,000-80,000 RPM), high-speed grinding spindles and dental drills (200,000-400,000 RPM = 3,300-6,700 rev/s), and inertial-confinement-fusion target-rotation rigs. 1 rev/s = 60 RPM = 2π rad/s ≈ 6.28 rad/s.
About Hertz (rotational) (Hz)
Rotational frequency expressed in cycles per second — dimensionally identical to rev/s (1 Hz = 1 rev/s = 60 RPM = 2π rad/s) but more common in physics, vibration analysis, and rotor-dynamics contexts where the frequency-domain interpretation matters. Used in: rotor-dynamics critical-speed studies per API 684 and ISO 21940 (the first-bending-mode critical speed of a 200 MW steam turbine rotor is typically 25-35 Hz, well separated from the 50/60 Hz grid synchronous speed at 50/60 Hz exactly), NDT (Non-Destructive Testing) vibration surveys per ISO 10816, FFT spectral analysis of rotating-machinery vibration signatures (the 1× = running speed peak, 2× = misalignment, 3-10× = blade-pass or gear-mesh frequencies depending on machine type), and balancing-machine output per ISO 1940 / ISO 21940-11. NOT to be confused with Hz as an electrical / temporal / oscillatory frequency (though they share the same underlying '1/s' dimension and are sometimes deliberately conflated in spectral analysis).
Quick Facts
- 1 Revolution per second equals 1 Hertz (rotational)
- 1 Hertz (rotational) equals 1 Revolutions per second
- Revolution per second is a unit of angular velocity
- Hertz (rotational) is a unit of angular velocity
- This conversion is commonly used in motor specifications, rotating machinery, and mechanical design
- The Hertz (rotational) belongs to the metric system
Common Revolution per second to Hertz (rotational) Conversions
| Revolutions per second (rev/s) | Hertz (rotational) (Hz) |
|---|---|
| 0.01 | 0.01 |
| 0.1 | 0.1 |
| 0.25 | 0.25 |
| 0.5 | 0.5 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 5 | 5 |
| 10 | 10 |
| 15 | 15 |
| 20 | 20 |
| 25 | 25 |
| 50 | 50 |
| 75 | 75 |
| 100 | 100 |
| 250 | 250 |
| 500 | 500 |
| 1000 | 1000 |
| 5000 | 5000 |
| 10000 | 10000 |
Understanding Revolutions per second
The Revolution per second (symbol: rev/s) is a unit of angular velocity. Rotational speed expressed in full turns per second (1 rev/s = 60 RPM = 2π rad/s ≈ 6.283 rad/s = 360 deg/s). Rev/s is used in specialized contexts where RPM feels too slow or where the per-second timebase matches the calculation's other time units. Common applications: laboratory centrifuges (Beckman Coulter Avanti J-26 max rotor speed ~5,000 RPM = 83 rev/s; Sorvall RC-6+ ~16,000 RPM = 267 rev/s; ultracentrifuges like Beckman Optima MAX 150,000 RPM = 2,500 rev/s for protein and nucleic-acid separation), automotive turbochargers (small passenger-car turbos run 150,000-250,000 RPM = 2,500-4,200 rev/s; truck/marine turbos slower at 30,000-80,000 RPM), high-speed grinding spindles and dental drills (200,000-400,000 RPM = 3,300-6,700 rev/s), and inertial-confinement-fusion target-rotation rigs. 1 rev/s = 60 RPM = 2π rad/s ≈ 6.28 rad/s.
Revolutions per second are commonly used in motor specifications, rotating machinery, and mechanical design.
Understanding Hertz (rotational)
The Hertz (rotational) (symbol: Hz) is a unit of angular velocity. Rotational frequency expressed in cycles per second — dimensionally identical to rev/s (1 Hz = 1 rev/s = 60 RPM = 2π rad/s) but more common in physics, vibration analysis, and rotor-dynamics contexts where the frequency-domain interpretation matters. Used in: rotor-dynamics critical-speed studies per API 684 and ISO 21940 (the first-bending-mode critical speed of a 200 MW steam turbine rotor is typically 25-35 Hz, well separated from the 50/60 Hz grid synchronous speed at 50/60 Hz exactly), NDT (Non-Destructive Testing) vibration surveys per ISO 10816, FFT spectral analysis of rotating-machinery vibration signatures (the 1× = running speed peak, 2× = misalignment, 3-10× = blade-pass or gear-mesh frequencies depending on machine type), and balancing-machine output per ISO 1940 / ISO 21940-11. NOT to be confused with Hz as an electrical / temporal / oscillatory frequency (though they share the same underlying '1/s' dimension and are sometimes deliberately conflated in spectral analysis).
It belongs to the metric measurement system.
Hertz (rotational) are commonly used in motor specifications, rotating machinery, and mechanical design.
Why Convert Revolutions per second to Hertz (rotational)?
Converting between Revolutions per second and Hertz (rotational) is a frequent requirement for engineers, scientists, and students working with angular velocity values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate angular velocity conversion is essential.
Frequently Asked Questions
How do I convert Revolutions per second to Hertz (rotational)?
Rotational speed expressed in full turns per second (1 rev/s = 60 RPM = 2π rad/s ≈ 6. To convert Revolutions per second to Hertz (rotational), multiply by 1. For example, 25 rev/s equals 25 Hz.
How many Hertz (rotational) are in 1 Revolution per second?
There are 1 Hertz (rotational) in 1 Revolution per second.
How many Revolutions per second are in 1 Hertz (rotational)?
There are 1 Revolutions per second in 1 Hertz (rotational).
What is the formula for Revolution per second to Hertz (rotational) conversion?
The formula is: multiply by 1. This means 1 rev/s = 1 Hz.
Is a Revolution per second bigger than a Hertz (rotational)?
No. One Revolution per second is smaller than one Hertz (rotational) because 1 rev/s equals 1 Hz, which is greater than 1.
When do you need to convert between Revolutions per second and Hertz (rotational)?
Rotational frequency expressed in cycles per second — dimensionally identical to rev/s (1 Hz = 1 rev/s = 60 RPM = 2π rad/s) but more common in physics, vibration analysis, and rotor-dynamics contexts where the frequency-... Revolution per second and Hertz (rotational) are both angular velocity units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.