Elara BennettDisclosure: This post contains affiliate links, which means we may earn a commission if you purchase through our links at no extra cost to you.
20 Hz equals 1200 RPM.
To convert 20 Hz to RPM, multiply the frequency in hertz by 60 because 1 Hz is 1 cycle per second, and there are 60 seconds in a minute. So, 20 Hz times 60 gives you 1200 RPM, representing how many revolutions or cycles happen per minute at that frequency.
Conversion Result
The conversion of 20 Hz to RPM results in 1200 RPM, meaning the object rotates 1200 times in a minute at this frequency.
Conversion Tool
Result in rpm:
Conversion Formula
The formula to convert hertz to rpm is RPM = Hz × 60. This works because hertz measures cycles per second, and there are 60 seconds in a minute, so multiplying by 60 converts the frequency into revolutions per minute.
For example, if you have 20 Hz, multiply 20 by 60: 20 × 60 = 1200. This means 20 cycles per second equals 1200 revolutions per minute, giving a direct and simple way to switch between these units.
Conversion Example
- Convert 10 Hz to RPM:
- Multiply 10 by 60.
- 10 × 60 = 600 RPM.
- This shows that 10 Hz equals 600 revolutions per minute.
- Convert 5 Hz to RPM:
- Multiply 5 by 60.
- 5 × 60 = 300 RPM.
- Therefore, 5 Hz equals 300 RPM.
- Convert 25 Hz to RPM:
- Multiply 25 by 60.
- 25 × 60 = 1500 RPM.
- This means 25 Hz corresponds to 1500 revolutions per minute.
Conversion Chart
This table shows how different frequencies in Hz convert to RPM. Use it to quickly find the RPM value for various frequencies.
| Hz | RPM |
|---|---|
| -5.0 | -300 |
| 0.0 | 0 |
| 5.0 | 300 |
| 10.0 | 600 |
| 15.0 | 900 |
| 20.0 | 1200 |
| 25.0 | 1500 |
| 30.0 | 1800 |
| 35.0 | 2100 |
| 40.0 | 2400 |
| 45.0 | 2700 |
Read the chart by finding the frequency in Hz on the left column and then looking across to see the corresponding RPM value. This helps quick conversions without calculations.
Related Conversion Questions
- How many rpm are in 20 Hz in a motor?
- What is the rpm equivalent of 20 Hz in a mechanical system?
- Is 20 Hz a fast rotation rate compared to rpm?
- How do I convert 20 Hz to revolutions per minute for a fan?
- What is the relation between 20 Hz and rpm in oscillating devices?
- Can I convert 20 Hz directly to rpm in a vibration analysis?
- How many rotations per minute does 20 Hz represent in a rotating shaft?
Conversion Definitions
Hz (hertz) measures how many cycles or oscillations happen each second, indicating frequency, used in signals and waveforms. RPM (revolutions per minute) shows how many full turns or rotations an object completes in a minute, often used in engines and motors.
Conversion FAQs
Why does multiplying Hz by 60 give RPM?
This is because Hz counts cycles per second and there are 60 seconds in a minute, so multiplying frequency in Hz by 60 converts it from cycles per second to cycles per minute, or revolutions per minute.
Can the conversion be used for all types of rotating machinery?
Yes, as long as the frequency in Hz represents the rotation rate, multiplying by 60 gives the RPM. But it is important to confirm that the frequency measurement relates directly to rotational movement, not other oscillations.
What happens if I input a negative frequency in the converter?
Negative frequency isn’t physically meaningful in most contexts, but mathematically, it would result in a negative RPM value, indicating direction. In practical terms, focus on the absolute value for rotation speed calculations.
Is there a difference between Hz and RPM in describing motor speeds?
Yes, Hz describes the frequency of oscillation or cycles per second, often in electrical signals, while RPM measures how many complete turns an object makes in a minute, typically used for mechanical rotations. They are related through multiplication by 60.
