Add hours, calculate time between times, convert to decimal
Enter each time period to add:
| Minutes | Decimal Hours | Example (8h + X min) |
|---|---|---|
| 5 min | 0.083 | 8.083 hours |
| 10 min | 0.167 | 8.167 hours |
| 15 min | 0.25 | 8.25 hours |
| 20 min | 0.333 | 8.333 hours |
| 25 min | 0.417 | 8.417 hours |
| 30 min | 0.5 | 8.5 hours |
| 45 min | 0.75 | 8.75 hours |
| 50 min | 0.833 | 8.833 hours |
Adding hours and minutes is not like regular addition. You can't simply add 2:45 + 1:30 = 3:75 — there are only 60 minutes in an hour. The correct result is 4:15 (carry 60 minutes as 1 hour).
Steps: (1) Add minutes: 45 + 30 = 75. (2) If over 60, subtract 60 and carry 1 hour: 75 - 60 = 15 minutes, carry 1. (3) Add hours: 2 + 1 + 1 = 4. Result: 4 hours 15 minutes.
For payroll calculations, time is often expressed as decimal hours. Convert by dividing minutes by 60. Working 8 hours 45 minutes = 8 + (45/60) = 8.75 hours. Multiply by your hourly rate: 8.75 × $20/hour = $175.
Our salary calculator helps convert between hourly and annual pay. For date-based calculations, use the date calculator.
9am to 5pm is exactly 8 hours. Use the Time Difference tab above to confirm or calculate any other start/end times.
Use the Add Time tab. Enter each day's work hours and minutes. The calculator sums them and shows total hours in both H:MM and decimal format — perfect for timesheets.
0.5 hours = 30 minutes. To convert decimal hours to minutes, multiply by 60. So 1.75 hours = 1.75 × 60 = 105 minutes = 1 hour 45 minutes.