Hours Calculator
Whether you are calculating work hours, shift hours, overtime, study time, or daily working time, this calculator provides a quick and accurate result.
Hours Calculator
Use the Hours Calculator above to enter your start time, end time, and break duration. The calculator automatically calculates your total working time.
How to Use the Hours Calculator
Follow these simple steps:
- Enter your Start Time.
- Enter your End Time.
- Enter your Break Time in minutes.
- Click Calculate Hours.
- Your total working time will be displayed instantly.
You can also click + Add Time Entry if you need to calculate multiple work periods.
What Does the Hours Calculator Calculate?
The calculator provides three useful results:
1. Total Hours
This shows your working time in hours and minutes.
For example:
8h 30m
2. Decimal Hours
The calculator also converts the result into decimal hours.
For example:
8 hours 30 minutes = 8.50 hours
This is particularly useful when entering working hours into payroll, timesheets, invoices, or attendance systems.
3. Total Minutes
The total duration is also displayed in minutes.
For example:
8 hours = 480 minutes
Example of Hours Calculation
Suppose you worked from 9:00 AM to 5:30 PM and took a 30-minute break.
Your total time is:
8 hours 30 minutes − 30 minutes break = 8 hours
Therefore, the calculator will show:
- Total Hours: 8h 0m
- Decimal Hours: 8.00
- Total Minutes: 480
Calculate Overnight Working Hours
The Hours Calculator can also calculate shifts that continue into the next day.
For example:
Start Time: 10:00 PM End Time: 6:00 AM
The calculator understands that the end time belongs to the following day and calculates the duration automatically.
The result is:
8 hours
This makes the tool useful for employees working night shifts, security shifts, hospitals, factories, call centers, and other workplaces with overnight schedules.
Calculate Multiple Working Periods
If you work multiple sessions during the day, you can add additional time entries.
For example:
| Session | Start | End | Break |
|---|---|---|---|
| Morning | 9:00 AM | 1:00 PM | 0 min |
| Afternoon | 2:00 PM | 6:00 PM | 0 min |
The calculator combines the durations and provides the total working time.
This is useful for people who have split shifts or multiple work sessions in a single day.
Who Can Use This Calculator?
The Hours Calculator can be useful for:
- Employees
- Freelancers
- Students
- Teachers
- Business owners
- HR professionals
- Payroll teams
- Shift workers
- Remote workers
- Contractors
- Employers
- Anyone tracking time
Hours to Decimal Hours Conversion
Sometimes working hours need to be entered as decimal numbers instead of hours and minutes.
Here are some common conversions:
| Hours & Minutes | Decimal Hours |
|---|---|
| 1h 00m | 1.00 |
| 1h 15m | 1.25 |
| 1h 30m | 1.50 |
| 1h 45m | 1.75 |
| 2h 00m | 2.00 |
| 2h 30m | 2.50 |
| 4h 15m | 4.25 |
| 6h 30m | 6.50 |
| 8h 30m | 8.50 |
The calculator performs this conversion automatically.
Hours Calculator Formula
The basic calculation is:
Working Hours = End Time − Start Time − Break Time
For example:
5:30 PM − 9:00 AM = 8 hours 30 minutes
After subtracting a 30-minute break:
8 hours 30 minutes − 30 minutes = 8 hours
For overnight shifts, the calculator automatically treats the end time as being on the following day.
Is the Hours Calculator Free?
Yes. The Hours Calculator is free to use and works directly in your web browser.
No registration or account is required, and the calculation can be performed instantly.
Frequently Asked Questions
What is an Hours Calculator?
An Hours Calculator is an online tool that calculates the duration between a start time and an end time. It can also subtract break time and display the result in hours, minutes, and decimal hours.
Can I calculate overnight shifts?
Yes. The calculator supports overnight shifts. For example, entering 10:00 PM as the start time and 6:00 AM as the end time calculates an 8-hour duration.
Can I subtract lunch breaks?
Yes. Enter the break duration in minutes, and it will automatically be subtracted from your total working time.
Can I calculate multiple shifts?
Yes. Use the Add Time Entry button to add multiple working periods. The calculator combines all valid entries into one total.
What is 30 minutes in decimal hours?
30 minutes is 0.50 decimal hours.
What is 45 minutes in decimal hours?
45 minutes is 0.75 decimal hours.
Can I use this calculator on mobile?
Yes. The calculator is fully responsive and can be used on smartphones, tablets, laptops, and desktop computers.
Conclusion
The Hours Calculator makes it simple to calculate working hours without manually converting time or subtracting breaks. Enter your start and end times, add your break duration, and get your total working time instantly.
Use it for work hours, employee timesheets, overtime calculations, shift tracking, study sessions, freelance projects, and daily time tracking.