Enter the average server round trip time and the average client round trip time into the calculator to determine the total RRT.

RTT Formula

The following formula is used to calculate the round trip time of a small packet traveling across a network. 

RRT = AVRTTs + AVRTTc
  • Where RRT is the round trip time
  • AVRTTs is the average round trip time to the server
  • AVRTTc is the average round trip time to the client

To calculate the round trip time (RTT), sum the average round trip time to the server with the average round tripe time to the client.

The average round trip times can further be broken down into the following equations: 

AVRTTs = (RTTs1 + RTTs2) / 2
AVRTTc = (RTTc1 + RTTc2) / 2
  • Where RTTs and RTTc are the round trip times of the server and client respectively

Example Problem

How to calculate RTT?

First, determine the average round trip time of the server. in this example, we will use a value of 7.354.

Next, determine the average round trip time of the client. in this problem, we will use a value of 4.568.

These values are arbitrary for this example to make it more simple.

Finally, calculate the RTT using the formula above:

RRT = AVRTTs + AVRTTc

RRT = 7.354 + 4.568

RRT = 11.922