Finally, we divide the sum of the observations by the total observations to get the average of the data set. By default, there are two time input groups in the calculator which are the fields you can enter your time entries. To add more input fields – hours, minutes, seconds and milliseconds – you just need to click on +Add Row button. Use this calculator to find the average or mean of a data set. Or copy and paste lines of data from spreadsheets or text documents. The average calculator will calculate the mean of up to thirty numbers. An interesting aspect of the calculator is you can see how the mean changes as more values are entered. Before you use the calculator, you should know how to calculate the average, just in case you are without the internet and cannot access this calculator. Note that the mean is the same as average, and we can use these terms interchangeably. To calculate the average dice value, add 1 to the max value of all dice, divide the result by 2, then multiply that result by the number of dies. The average calculator is one of the great tools for handling the numbers and finding out the mean and average value of the given numbers.