# Feet Per Second to Speed Of Sound Conversion

Enter the speed in feet per second below to get the value converted to speed of sound.

**Results in Speed Of Sound:**

## How to Convert Feet Per Second to Speed Of Sound

To convert a foot per second measurement to a speed of sound measurement, multiply the speed by the conversion ratio. One foot per second is equal to 0.000889 speed of sound, so use this simple formula to convert:

The speed in speed of sound is equal to the feet per second multiplied by 0.000889.

**For example,**here's how to convert 5,000 feet per second to speed of sound using the formula above.

Feet per second and speed of sound are both units used to measure speed. Keep reading to learn more about each unit of measure.

## Feet Per Second

Feet per second are a measurement of speed expressing the distance traveled in feet in one second.

The foot per second is a US customary and imperial unit of speed. Feet per second can be abbreviated as *ft/s*, and are also sometimes abbreviated as *ft/sec* or *fps*. For example, 1 foot per second can be written as 1 ft/s, 1 ft/sec, or 1 fps.

In formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression.^{[1]}

Feet per second can be expressed using the formula:

v_{ft/s} = d_{ft}t_{sec}

The velocity in feet per second is equal to the distance in feet divided by time in seconds.

## Speed Of Sound

The speed of sound is the distance a sound wave travels through an elastic medium.
The speed of sound through air at 20 °C is equal to 343 meters per second,^{[2]} or roughly 767 miles per hour.

Speed of sound can be abbreviated as *sound*; for example, 1 speed of sound can be written as 1 sound.

## Foot Per Second to Speed Of Sound Conversion Table

Feet Per Second | Speed Of Sound |
---|---|

1 ft/s | 0.000889 sound |

2 ft/s | 0.001777 sound |

3 ft/s | 0.002666 sound |

4 ft/s | 0.003555 sound |

5 ft/s | 0.004443 sound |

6 ft/s | 0.005332 sound |

7 ft/s | 0.00622 sound |

8 ft/s | 0.007109 sound |

9 ft/s | 0.007998 sound |

10 ft/s | 0.008886 sound |

20 ft/s | 0.017773 sound |

30 ft/s | 0.026659 sound |

40 ft/s | 0.035545 sound |

50 ft/s | 0.044431 sound |

60 ft/s | 0.053318 sound |

70 ft/s | 0.062204 sound |

80 ft/s | 0.07109 sound |

90 ft/s | 0.079977 sound |

100 ft/s | 0.088863 sound |

200 ft/s | 0.177726 sound |

300 ft/s | 0.266589 sound |

400 ft/s | 0.355452 sound |

500 ft/s | 0.444315 sound |

600 ft/s | 0.533178 sound |

700 ft/s | 0.622041 sound |

800 ft/s | 0.710904 sound |

900 ft/s | 0.799767 sound |

1,000 ft/s | 0.88863 sound |

2,000 ft/s | 1.7773 sound |

3,000 ft/s | 2.6659 sound |

4,000 ft/s | 3.5545 sound |

5,000 ft/s | 4.4431 sound |

6,000 ft/s | 5.3318 sound |

7,000 ft/s | 6.2204 sound |

8,000 ft/s | 7.109 sound |

9,000 ft/s | 7.9977 sound |

10,000 ft/s | 8.8863 sound |

## References

- National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using
- CK-12, Speed of Sound, https://www.ck12.org/physics/speed-of-sound/lesson/Speed-of-Sound-MS-PS/