how much time most sprinters are expected to take to complete the race. For example, if a few athletes have run a 100m sprint, you may want to know the average result - i.e. In plain English, calculating the average for a set of values if finding out the most common value in the set. You will also learn how to use the AVERAGEIF and AVERAGEIFS functions to average cells that meet certain criteria. This ensures that your computer is not solely occupied with updating the sheet.The tutorial shows how to calculate mean in Excel for different data types by using AVERAGE or AVERAGEA formulas. In the Data menu, the menu item Calculate - AutoCalculate is normally active however, automatic calculation does not apply to the function NOW. This value is not automatically updated, although 'Now' continuously changes. The values are calculated as of the exact moment when you entered the last formula and pressed the Enter key.

The time since your date of birth will be calculated and displayed in the various units. The number of days between today's date and the specified date is displayed in cell A3.Įxperiment with some additional formulas: in A4 enter =A3*24 to calculate the hours, in A5 enter =A4*60 for the minutes, and in A6 enter =A5*60 for seconds. To display the result as a number, set the number format to '-1,234' and close the dialog with the OK button. The format is set to 'General', which causes the result of a calculation containing date entries to be displayed as a date. On the Numbers tab, the 'Number' category will appear already highlighted. Place the cursor in cell A3, right-click to open a context menu and choose Format Cells. Since the result should show the difference between two dates as a number of days, you must format cell A3 as a number. In a spreadsheet, enter your birthday in cell A1.Įnter the following formula in cell A3: =NOW()-A1Īfter pressing the Enter key you will see the result in date format. As an example, to find out exactly how old you are in seconds or hours, follow the following steps:

In LibreOffice Calc, you can perform calculations with current date and time values.

Openoffice calculate hours from time