Shift Hours Calculator
Shift hours calculator for 2026 timesheets and rota planning. Enter start time, end time, and unpaid break minutes to calculate total hours, including overnight shifts.
Enter Values
Result
Enter values above and click Calculate to see your result.
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Formula
How it works: The calculator converts both times into minutes, adjusts for overnight shifts when the end time falls after midnight, subtracts unpaid break time, then converts the result back to hours.
Review and Methodology
This calculator runs locally in your browser. Inputs are converted into the units required by the formula, and the result is paired with supporting references so you can verify the method before using it for planning or estimates.
Worked Example
Frequently Asked Questions
Can this calculate overnight shifts?
Yes. If the end time is earlier than the start time, the calculator assumes the shift ended after midnight and carries the time into the next day.
Should I include break time?
Enter unpaid breaks in minutes so they are removed from the final worked hours total. Paid breaks should usually stay included in the gross shift length.
How do I convert worked hours into decimal time?
The calculator returns decimal hours automatically. For example, 7 hours 30 minutes becomes 7.5 hours, which is easier to use in payroll systems and timesheets.
Why do payroll systems use decimal hours?
Decimal hours make wage calculations simpler. If you worked 7.5 hours at $20 per hour, payroll can multiply directly to get $150.
Can I use this for timesheets?
Yes. It is useful for daily time tracking, staff rota planning, freelance billing, and checking that scheduled hours match the expected shift pattern.
How can I put this Shift Hours Calculator on my blog or website?
Yes, the Shift Hours Calculator is fully embeddable. Tap "Embed" above to configure appearance and copy the code. It is free to use, works on any platform (HTML, WordPress, CMS), and adjusts to any screen size automatically. Visit calculory.com/services/embed-calculators for the complete guide.
AI Assistant
Ask about this calculator
I can help you understand the shift hours calculator formula, interpret your results, and answer follow-up questions.
Try asking
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