How to Use This Calculator
- Select shift start and end times: Use standard 12-hour or 24-hour time selectors.
- Input unpaid break duration: Enter lunch or rest breaks in minutes to deduct non-working time.
- Add optional hourly rate: See immediate gross pay calculations based on exact decimal hours.
Formula and Calculation Steps
Elapsed Minutes = (End Time − Start Time) in minutes
Net Minutes = Elapsed Minutes − Break Minutes
Decimal Hours = Net Minutes ÷ 60
Gross Earnings = Decimal Hours × Hourly RateWorked Examples and Reference Table
| Minutes | Fraction of Hour | Decimal Hours |
|---|---|---|
| 15 Minutes | 1/4 hour | 0.25 hrs |
| 30 Minutes | 1/2 hour | 0.50 hrs |
| 45 Minutes | 3/4 hour | 0.75 hrs |
| 60 Minutes | 1 full hour | 1.00 hrs |
Frequently Asked Questions
How do you convert minutes into decimal hours?
Divide the number of minutes by 60. For example, 30 minutes is 30 ÷ 60 = 0.50 hours; 45 minutes is 45 ÷ 60 = 0.75 hours.
How does this calculator handle overnight shifts across midnight?
If the end time is numerically earlier than the start time (for example, starting at 10:00 PM and ending at 6:00 AM), the calculator automatically detects that the shift crosses midnight and adds 24 hours.
Why do employers require decimal hours for payroll?
Payroll software multiplies hourly wage directly by hours worked. Standard minutes (base 60) must be converted into decimal fractions (base 10) so multiplication yields accurate monetary amounts.
Are lunch breaks typically paid or unpaid?
Under most labor laws, bona fide meal breaks lasting 30 minutes or longer where the employee is completely relieved of duty are unpaid and deducted from total work hours.
How do you calculate overtime pay?
Standard overtime is paid at 1.5 times the regular hourly rate (time and a half) for hours worked beyond 40 hours in a standard workweek.