A simple engineering calculator of linear and angular speeds, which will allow you to find the shaft speed, shaft radius, committed number of revolutions and centripetal acceleration.

Operating procedure:
1. Select in the drop-down menu what you want to find (linear speed, angular velocity or radius of the shaft)
2. Fill in the appropriate values ​​below as shown in the figure.
3. Press the button “Calculation”


All required values ​​will be calculated under the button “Calculation”.
According to the result of the calculation, you will know the following values:
- linear speed (m / s and km / h)
- angular velocity (rad / s)
- shaft radius (mm, cm and m)
- the number of shaft revolutions for a certain time (per second and per minute)
- time of one revolution (in seconds and minutes)
- centripetal shaft acceleration (m / s2)


For reference:
- 1 radian = 57.2958 degrees
- 3.14 radians (PI number) = 180 degrees - half circle
- 6.28 radians (2 * PI) = 360 degrees - a whole circle