How do I add up hours and minutes?
Type each duration with its unit, join them with a plus sign, and the calculator returns one clean total. For example, enter "8h 15m + 7h 45m" on a single line. Pick a result format like "Hour Minute," and it carries every 60 minutes into an hour for you automatically.
Adding hours and minutes by hand means tracking two columns and carrying every 60 minutes into the next hour. It is the kind of arithmetic that is easy to fumble at the end of a long week. This calculator handles the carrying for you. You write the durations the way you would say them, and it returns one total in whatever format you choose.
Step by step
Write each duration with its unit
Every number needs a unit. Type hours as h and minutes as m, so a shift becomes 8h 15m. You can write 8h, 45m, or 8h 15m, but never a bare 8.25. The unit is what tells the calculator whether you mean hours or minutes.
Join the durations with a plus sign
Put a + between each entry and keep everything on one line: 8h 15m + 7h 45m + 8h 30m. Add as many shifts as you need. To take time off, use a minus sign, like 9h 30m - 45m for an unpaid lunch break.
Pick a result format
Choose how the total reads from the format picker. Hour Minute gives you something like 40 Hours 25 Minutes for payroll. Day Hour Minute is handy when a total runs past 24 hours, and Minute gives a single number when you need to multiply by a rate.
Read the carried total
The calculator rolls every 60 minutes into an hour, so you never see a result like 39 Hours 85 Minutes. The same expression can be shown in several formats, so switch the picker to view the same total as hours, days, or plain minutes.
Worked examples
8h 15m + 7h 45m + 8h 30m + 6h 50m + 9h 5m=40 Hours 25 MinutesFive daily shifts added into one weekly timesheet total.
8h 15m + 7h 45m + 8h 30m + 6h 50m + 9h 5m=1 Day 16 Hours 25 MinutesThe same week shown as days, hours, and minutes when the total tops 24 hours.
9h 30m - 45m=8 Hours 45 MinutesSubtract an unpaid lunch break from a single shift.
8h 15m × 5=41 Hours 15 MinutesMultiply one identical shift by five days instead of typing it five times.
Try it yourself
Type hours, minutes, days, weeks, months, years, or seconds, as full words or shorthand (h m d w), with + - * /. Pick how the answer reads with Show result as up top. It all runs in your browser. Drag the card’s right edge to make it wider.
Common questions
Do I have to convert minutes into decimals first?
No. Type the minutes as minutes, like 45m, and leave them alone. The calculator does the carrying, so 8h 15m + 7h 45m comes out as a clean hours-and-minutes total. You never have to turn 45 minutes into 0.75 by hand.
What if my total goes over 24 hours?
It still works. A full week of shifts can easily pass 40 hours, and the calculator shows it correctly in Hour Minute. Switch the format to Day Hour Minute if you would rather see it broken into days, hours, and minutes.
Can I subtract a break from the total?
Yes. Use a minus sign for any time you need to remove, such as 9h 30m - 45m to drop a 45 minute lunch. You can mix plus and minus signs in the same line to add shifts and subtract breaks together.
Reviewers like Sharon Lloyd use it to total their work timesheets, which makes doing timesheets for work much easier.