Enter the disk utilization (%) and the interval length (sec) into the Calculator. The calculator will evaluate the Disk Service Time.

## Disk Service Time Formula

DAT = U/100 * IL

Variables:

- DAT is the Disk Service Time (sec)
- U is the disk utilization (%)
- UL is the interval length (sec)

To calculate Disk Service Time, divide the disk utilization by 100, then multiply by the interval length.

## How to Calculate Disk Service Time?

The following steps outline how to calculate the Disk Service Time.

- First, determine the disk utilization (%).
- Next, determine the interval length (sec).
- Next, gather the formula from above = DAT = U/100 * IL.
- Finally, calculate the Disk Service Time.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

disk utilization (%) = 78

interval length (sec) = 234