How do I convert hours and minutes to decimal?

Divide minutes by 60. So 7 hours 45 minutes = 7 + 45/60 = 7.75 decimal hours. This format is used for payroll and billing.

Hours Calculator

Find the duration between two times — handles overnight shifts and break deductions.

Start Time

End Time

Break (minutes)

Hourly Rate ($)

📐 How We Calculate — Learn about our calculation methodology, data sources, and quality standards.

Decimal Hours Conversion Table

Minutes	Decimal	Minutes	Decimal
5 min	0.08	35 min	0.58
10 min	0.17	40 min	0.67
15 min	0.25	45 min	0.75
20 min	0.33	50 min	0.83
25 min	0.42	55 min	0.92
30 min	0.50	60 min	1.00

Overtime Rules — U.S. Federal Baseline

The Fair Labor Standards Act (FLSA) requires 1.5× pay after 40 hours per week for non-exempt employees. Some states go further: California mandates daily overtime after 8 hours, and double time after 12 hours. Alaska and Nevada also enforce daily overtime. Always check your state's labor department — federal law is the floor, not the ceiling.

Common Work Schedules

Schedule	Daily Hours	Weekly Hours
Standard 9-to-5	8h (7.5 net)	40h (37.5 net)
4/10 compressed	10h	40h
9/80 schedule	9h (alt Fri off)	80h / 2 weeks
12-hour shift	12h	36–48h rotating

FAQ

How do I calculate hours worked?

Enter start and end times, subtract any break. An 8:00 to 16:30 shift with a 30-minute lunch is 8 hours net.

How to convert to decimal hours?

Divide minutes by 60. 7 hours 45 minutes = 7.75 decimal hours. Payroll systems use this format.

Does this handle overnight shifts?

Yes. If the end time is before the start time, 24 hours are added automatically.

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Weekly timesheet.

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Hourly ↔ annual.

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How to Use This Hours Calculator

Enter start time, end time, and break duration. The calculator computes total hours worked, including overtime calculations for different pay structures.

Formula & How It Works

Total Hours = End Time – Start Time – Breaks. For weekly: sum daily hours. Overtime = Hours > 40/week × 1.5 rate (FLSA standard).

Calculation Example

Clock in 8:30 AM, out 5:15 PM, 45-min lunch: 8.75 – 0.75 = 8.00 hours. Weekly: 5 × 8 = 40 hours (no overtime).

Expert Tips

Round to the nearest 15-minute increment for most payroll systems. Track breaks accurately — they can significantly affect your pay over a year. Use this for freelance time tracking too.