Enter the spring rate (N/m) and the total lift (m) into the calculator to determine the Valve Spring Pressure.

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## Valve Spring Pressure Formula

The following formula is used to calculate the Valve Spring Pressure.

Pvalve = K / L

- Where Pvalve is the Valve Spring Pressure (N/m^2)
- K is the spring rate (N/m)
- L is the total lift (m)

To calculate the valve spring pressure, divide the spring rate by the total lift.

## How to Calculate Valve Spring Pressure?

The following two example problems outline how to calculate the Valve Spring Pressure.

**Example Problem #1:**

- First, determine the spring rate (N/m). In this example, the spring rate (N/m) is given as 100.
- Next, determine the total lift (m). For this problem, the total lift (m) is given as 5.
- Finally, calculate the Valve Spring Pressure using the equation above:

Pvalve = K / L

Inserting the values from above and solving the equation:

Pvalve =100 / 5 = 20 (N/m^2)

**Example Problem #2: **

Using the same process as above, first define the variables required by the formula. In this case, these values are:

spring rate (N/m) = 200

total lift (m) = .8

Entering these values yields:

Pvalve = 200/ .8 = 250 (N/m^2)