Shift Hours Calculator
Calculate your total shift hours, break time, paid hours, decimal hours and estimated pay.
What Is a Shift Hours Calculator?
A Shift Hours Calculator helps you calculate the total time between the start and end of a work shift. It can also account for break time, paid or unpaid breaks, overnight shifts and hourly pay.
Instead of manually calculating the difference between two times, enter your shift start time, end time and break details to calculate your hours automatically.
The ShiftCalco Shift Hours Calculator shows your total shift length, actual working hours, paid hours, decimal hours and estimated pay.
How to Use the Shift Hours Calculator
Using the calculator is simple:
- Enter the time your shift started.
- Enter the time your shift ended.
- Enter your break duration in minutes.
- Select whether your shift ends on the same day or the next day.
- Select whether your break is paid or unpaid.
- Optionally enter your hourly rate.
- Click Calculate My Shift.
The calculator will instantly show your shift duration, working time, paid hours, decimal hours and estimated pay.
Shift Hours Calculation Example
Suppose you start work at 9:00 AM and finish at 5:00 PM.
Your total shift length is 8 hours.
If you take a 30-minute unpaid break, your actual working time and paid time become 7 hours 30 minutes.
In decimal format, this is 7.50 hours.
If your hourly rate is €15, your estimated pay would be:
7.50 × €15 = €112.50
How Are Shift Hours Calculated?
The basic shift duration formula is:
End Time − Start Time = Total Shift Hours
If you have an unpaid break, it is deducted when calculating paid hours:
Total Shift Hours − Unpaid Break = Paid Hours
For example:
- Start: 8:30 AM
- End: 5:00 PM
- Total Shift: 8 hours 30 minutes
- Unpaid Break: 30 minutes
- Paid Hours: 8 hours
ShiftCalco performs these calculations automatically.
Paid Break vs Unpaid Break
Whether your break is paid or unpaid can affect the number of hours you are paid for.
For example, imagine you have an 8-hour shift with a 30-minute break.
If the break is unpaid, your paid time is 7 hours 30 minutes.
If the break is paid, your paid time remains 8 hours.
The calculator lets you choose between paid and unpaid breaks so the calculated paid hours reflect the information you enter.
If your shift includes multiple breaks, use the Shift Calculator With Break to enter more than one paid or unpaid break.
What Are Working Hours and Paid Hours?
Working hours and paid hours are not always the same.
Working hours represent the time remaining after the entered break is removed from your total shift.
Paid hours represent the amount of time included in the pay calculation.
For example, during an 8-hour shift with a 30-minute paid break:
- Actual working time: 7 hours 30 minutes
- Paid time: 8 hours
During an 8-hour shift with a 30-minute unpaid break:
- Actual working time: 7 hours 30 minutes
- Paid time: 7 hours 30 minutes
How Do Decimal Work Hours Work?
Decimal hours convert hours and minutes into a decimal number that can be easier to use for timesheets, payroll and wage calculations.
For example:
| Time | Decimal Hours |
|---|---|
| 6 hours 15 minutes | 6.25 |
| 6 hours 30 minutes | 6.50 |
| 6 hours 45 minutes | 6.75 |
| 7 hours | 7.00 |
| 7 hours 30 minutes | 7.50 |
| 8 hours | 8.00 |
Remember that 30 minutes is 0.50 of an hour, not 0.30.
Can I Calculate an Overnight Shift?
Yes. If your shift starts on one day and finishes after midnight, select Next Day / Overnight.
For example:
- Start: 10:00 PM
- End: 6:00 AM
- Total Shift: 8 hours
If you take a 30-minute unpaid break, your paid hours become 7 hours 30 minutes.
If you regularly work at night and need a simple calculation for a night shift, use the Night Shift Calculator .
If you need to calculate an overnight shift with multiple paid and unpaid breaks, use the Overnight Shift Calculator .
How Is Shift Pay Calculated?
If you enter your hourly rate, ShiftCalco can provide an estimated pay amount for your shift.
The basic formula is:
Paid Hours × Hourly Rate = Estimated Pay
For example:
- Paid Hours: 7.50
- Hourly Rate: €16.00
7.50 × €16.00 = €120.00
This is only an estimate. Actual wages can differ because of overtime rates, shift premiums, weekend rates, holiday pay, taxes, deductions or other employment arrangements.
For a more detailed earnings calculation that includes shift premiums or bonuses, use the Shift Pay Calculator .
Shift Hours vs Work Hours
A shift-hours calculation focuses on one individual work shift, using a start time, end time and break.
If your workday contains multiple separate clock-in and clock-out periods, such as a split shift, use the Work Hours Calculator to add those work periods together.
If you need to total several days of work, use the Weekly Hours Calculator .
Who Can Use the Shift Hours Calculator?
The calculator can be useful for hourly workers, shift workers, employees, supervisors, managers, freelancers and anyone who needs to calculate the length of an individual work shift.
It can be used for shifts in hospitality, healthcare, retail, security, warehouses, factories, restaurants, transport, cleaning, customer service and many other industries.
Frequently Asked Questions
How many hours is a 9 AM to 5 PM shift?
A shift from 9:00 AM to 5:00 PM is 8 hours before any unpaid break is deducted.
How many hours is 9 AM to 5 PM with a 30-minute break?
If the 30-minute break is unpaid, your paid working time is 7 hours 30 minutes, or 7.50 decimal hours.
How do I calculate my shift hours?
Enter your shift start time and end time into the calculator. Add your break duration and select whether the break is paid or unpaid. The calculator will calculate your total shift time, working hours and paid hours.
Does break time count toward paid hours?
It depends on whether the break is marked as paid or unpaid. A paid break remains included in paid hours, while an unpaid break is deducted.
Can I calculate shifts that cross midnight?
Yes. Select Next Day / Overnight when your shift finishes on the following day.
Can I calculate my shift pay?
Yes. Enter your hourly rate and the calculator will estimate your pay based on your calculated paid hours.
Does the Shift Hours Calculator calculate overtime?
No. This calculator focuses on an individual shift and standard estimated pay. For overtime calculations, use the Overtime Calculator .
Can I calculate multiple work periods?
This calculator is designed for one shift. If you have several separate clock-in and clock-out periods, use the Work Hours Calculator .
Is the Shift Hours Calculator free?
Yes. The ShiftCalco Shift Hours Calculator is free to use and does not require registration.
Related Work and Shift Calculators
You may also find these ShiftCalco calculators useful:
- Work Hours Calculator - calculate multiple clock-in and clock-out work periods.
- Shift Calculator With Break - calculate a shift with multiple paid and unpaid breaks.
- Night Shift Calculator - calculate night shift hours, an unpaid break and estimated pay.
- Overnight Shift Calculator - calculate work hours across midnight with multiple breaks.
- Weekly Hours Calculator - calculate total work hours from Monday through Sunday.
- Break Time Calculator - calculate break duration and return-to-work time.
- Shift Pay Calculator - calculate estimated shift earnings, premiums and bonuses.
- Overtime Calculator - calculate regular hours, overtime hours and estimated overtime pay.
- Hourly to Salary Calculator - convert hourly wages into estimated weekly, monthly and annual earnings.
About the Shift Hours Calculation
ShiftCalco calculates shift hours using the start time, end time, break duration, break type and hourly rate you enter.
The results are general estimates and may differ from official timesheets, payroll records or employer calculations.