Hours Calculator
Calculator Use
Use this calculator to add up a time sheet or for time card labor hours.
Enter only integers such as 1215 for 12:15 or 137 for 1:37. For a full time card use a Time Card Calculator.
Enter start time and end time without '.' or ':'.
If you enter a single integer from 1 through 12 it will assume 1:00 through 12:00.
Assumes "12 pm" for noon and "12 am" for midnight.
Converting between digital time and decimal hours
Suppose you calculated a total digital time of 7:15, 7 hours and 15 minutes. The equivalent time in decimal hours is 7.25 hours. You will need decimal hours to calculate pay.
Converting from minutes to decimal hours
7:15 is 7.0 hours plus 15 minutes. You'll need to convert the minutes part to hours.
15 minutes times 1 hour per 60 minutes will make the conversion to hours and minutes will cancel out.
15 min × (1 hr / 60 min) = (15/60) hr = 0.25 hr
Adding the 0.25 to the 7.0 our total is 7.0 + 0.25 = 7.25 hours
In Reverse, converting from decimal hours to minutes
0.25 hours times 60 minutes per 1 hour = 0.25 hr × (60 min/ 1hr) = (0.25 × 60) min = 15 minutes.