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.

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## 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:

- First, determine the tip speed (mph/knots).
- The tip speed (mph/knots) is given as: 15.

- Next, determine the wind speed (mph/knots).
- The wind speed (mph/knots) is provided as: 30.

- 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

Test your knowledge using the equation and check your answer with the calculator above.

TSR = TS / WS** = ?**