Convert Hertz (rotational) to Revolutions per second
Instantly convert Hertz (rotational) (Hz) to Revolutions per second (rev/s) with our free online calculator.
Formula: Hz to rev/s — multiply by 1
Reference Table
| Hertz (rotational) (Hz) | Revolutions per second (rev/s) |
|---|---|
| 1 | 1 |
| 5 | 5 |
| 10 | 10 |
| 25 | 25 |
| 50 | 50 |
| 100 | 100 |
How to Convert Hertz (rotational) to Revolutions per second
Formula
To convert Hertz (rotational) (Hz) to Revolutions per second (rev/s): multiply by 1
Step-by-Step
- Start with your value in Hertz (rotational) (Hz).
- Multiply by 1 to perform the conversion.
- The result is your value expressed in Revolutions per second (rev/s).
Conversion Factor
1 Hz = 1 rev/s
Reverse Factor
1 rev/s = 1 Hz
Worked Example
Convert 25 Hertz (rotational) to Revolutions per second: 25 Hz = 25 rev/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).
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.
Quick Facts
- 1 Hertz (rotational) equals 1 Revolutions per second
- 1 Revolution per second equals 1 Hertz (rotational)
- Hertz (rotational) is a unit of angular velocity
- Revolution per second 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 Hertz (rotational) to Revolution per second Conversions
| Hertz (rotational) (Hz) | Revolutions per second (rev/s) |
|---|---|
| 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 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.
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.
Why Convert Hertz (rotational) to Revolutions per second?
Converting between Hertz (rotational) and Revolutions per second 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 Hertz (rotational) to Revolutions per second?
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-... To convert Hertz (rotational) to Revolutions per second, multiply by 1. For example, 25 Hz equals 25 rev/s.
How many Revolutions per second are in 1 Hertz (rotational)?
There are 1 Revolutions per second in 1 Hertz (rotational).
How many Hertz (rotational) are in 1 Revolution per second?
There are 1 Hertz (rotational) in 1 Revolution per second.
What is the formula for Hertz (rotational) to Revolution per second conversion?
The formula is: multiply by 1. This means 1 Hz = 1 rev/s.
Is a Hertz (rotational) bigger than a Revolution per second?
No. One Hertz (rotational) is smaller than one Revolution per second because 1 Hz equals 1 rev/s, which is greater than 1.
When do you need to convert between Hertz (rotational) and Revolutions per second?
Rotational speed expressed in full turns per second (1 rev/s = 60 RPM = 2π rad/s ≈ 6. Hertz (rotational) and Revolution per second 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.