Enter the spindle RPM, the chip load, and the number of teeth into the Feed Rate Calculator. The calculator will evaluate the Feed Rate.

## Feed Rate Formula

The following formula is used to calculate the Feed Rate.

FR = RPM * CL * T
• Where FR is the Feed Rate (in/min)
• RPM is the spindle RPM
• CL is the chip load
• T is the number of teeth

To calculate the feed rate, multiply the spindle RPM, chip load, and number of teeth together.

## How to Calculate Feed Rate?

The following two example problems outline the steps and information needed to calculate the Feed Rate.

Example Problem #1

1. First, determine the spindle RPM.
• The spindle RPM is calculated to be : 500.
2. Next, determine the chip load.
• The chip load is measured to be: 30.
3. Next, determine the number of teeth.
• The number of teeth is found to be: 60.
4. Finally, calculate the Feed Rate using the formula above:

FR = RPM * CL * #T

The values provided above are inserted into the equation below and computed.

FR = 500 * 30 * 60 = 900,000 (in/min)

Example Problem #2

The variables required for this problem are provided below:

spindle RPM = 600