How to use Hours Calculator
- Type the time in and time out for each day; a shift past midnight is fine.
- Type the break in minutes and it is taken off.
- Add rows for more days; the total shows in hours and minutes and as a decimal for payroll.
- Type an hourly rate to see the pay, then copy or share the card.
Why use Hours Calculator
Overnight shifts
A shift from 22:00 to 06:00 is 8 hours, not a negative number: the duration is counted across midnight.
Breaks taken off
Minutes of break per day, unpaid, left out of the total.
Decimal hours
7 hours 30 minutes is also shown as 7.5, the form payroll systems want.
Pay at a rate
Hours times an hourly rate, for a quick check of a wage slip or an invoice.
About this tool
An hours calculator adds up time the way a time card does: the hours and minutes between clocking in and clocking out, minus breaks, for each day, and the total for the week or the month. It answers how many hours a shift is, whether the payslip matches the hours worked, what to bill a client for time on site, and how many hours a rota adds up to.
Time is awkward to add by hand because minutes go up to 60, not 100: 7:45 plus 8:20 is 16:05, not 15.65. The calculator keeps hours and minutes apart, handles shifts that cross midnight, and also gives the total as decimal hours (7.5 for seven and a half), the figure payroll software and invoices use. Multiply by an hourly rate and the pay appears alongside.
Frequently asked questions
How many hours is 9 to 5 with a lunch break?
8 hours between 9:00 and 17:00; with a 30-minute break, 7 hours 30 minutes, or 7.5 hours.
Does it handle night shifts?
Yes. A time out earlier than the time in is taken as the next day: 22:00 to 06:00 is 8 hours.
What are decimal hours?
Minutes as a fraction of an hour: 7 hours 30 minutes is 7.5, 7 hours 20 minutes is 7.33. Payroll and billing use them so the rate can be multiplied directly.
Can I use it as a weekly timesheet?
Yes. Add a row per day, fill in the times and breaks, and read the week's total and pay. The rows stay in this tab until you close it.
How do I work out overtime?
Enter each day's start and end times and breaks; the total shows in hours and minutes and in decimal hours. Anything above your normal weekly hours, such as 40 or 48, is overtime.