Enter the tip speed (mph/knots) and the wind speed (mph/knots) into the Tip Speed Ratio Calculator. The calculator will evaluate and display the Tip Speed Ratio.

## Tip Speed Ratio Formula

The following formula is used to calculate the Tip Speed Ratio.

TSR = TS / WS

• Where TSR is the Tip Speed Ratio ( )
• TS is the tip speed (mph/knots)
• WS is the wind speed (mph/knots)

## How to Calculate Tip Speed Ratio?

The following example problems outline how to calculate Tip Speed Ratio.

Example Problem #1:

1. First, determine the tip speed (mph/knots).
• The tip speed (mph/knots) is given as: 15.
2. Next, determine the wind speed (mph/knots).
• The wind speed (mph/knots) is provided as: 30.
3. Finally, calculate the Tip Speed Ratio using the equation above:

TSR = TS / WS

The values given above are inserted into the equation below and the solution is calculated:

TSR = 15 / 30 = .500

Example Problem #2:

For this problem, the variables required are provided below:

tip speed (mph/knots) = 16

wind speed (mph/knots) = 40