Clock time, converted.
Convert hours and minutes into decimal hours, turn decimal time back into normal hours and minutes, and make sense of working time, timesheets and holiday hours.
7:30 → 7.50
but:
7.30 → 7h 18m
Use Hundred Hour to convert time quickly and understand what the numbers actually mean.
Use the Hundred Hour Time Converter to switch between normal clock time and decimal hours.
Convert:
or:
Decimal hours → Hours & minutesWhether you are completing a timesheet, checking payroll or simply trying to understand a decimal time value, the converter does the calculation for you.
Convert My TimeWant to understand the calculation? See What Are Decimal Hours?
For example:
7h 42m
= 7.70 hours
and: 7.70 hours
= 7h 42m
Hundred Hour is a growing collection of simple tools for working with time, shifts, payroll and annual leave.
Convert normal hours and minutes into decimal hours or convert decimal hours back into standard time.
Useful for:
Already know your holiday balance in hours?
Convert it into:
For example:
68h 30m holiday with a 7h 30m paid shift
= 9 full shifts + 1 hour remaining
More Hundred Hour calculators are planned for shift hours, weekly working time and billable hours.
Need a common conversion without using the calculator?
| Minutes | Decimal hours |
|---|---|
| 15 | 0.25 |
| 20 | 0.33 |
| 30 | 0.50 |
| 45 | 0.75 |
| Decimal hours | Minutes |
|---|---|
| 0.25 | 15 |
| 0.50 | 30 |
| 0.75 | 45 |
| 1.00 | 60 |
For every minute from 1 to 60, see the Decimal Hours Conversion Chart.
Normal clock time and decimal time use different systems.
If you want to understand the difference in more detail, see What Are Decimal Hours?
A standard hour contains:
60 minutes
So: 7:30 means:
7 hours 30 minutes
Thirty minutes is half an hour, so in decimal form:
7:30 = 7.50 hours
But: 7.30 decimal hours means 7 hours plus 0.30 of an hour.
0.30 × 60 = 18
So:
7.30 hours = 7 hours 18 minutes
That is why:
7:30 ≠ 7.30
Convert worked hours into decimal values and understand figures shown on timesheets and payroll records.
For example: 8h 45m = 8.75 hours not 8.45.
Explore Payroll & Timesheets.
Understand shift lengths, working hours and different ways of recording time.
Hundred Hour can help turn hours and minutes into clear values that are easier to compare and calculate.
Explore Shift Work.
If your holiday balance is shown in hours, convert it into normal shifts and see how much time remains.
For example: 60 hours leave ÷ 7.5-hour shift = 8 shifts
Explore Annual Leave.
Decimal hours are often useful when working time needs to be multiplied by an hourly rate.
Convert normal time into a decimal value before calculating billable hours or charges.
Explore Billing & Specialist Time.
Shift-based and part-time working patterns can make annual leave and working hours harder to understand.
Hundred Hour provides tools and guides for hourly leave balances and shift-based time calculations.
Explore NHS & Healthcare.
Holiday balances are often easier to understand when you convert them into your normal shifts.
The Hundred Hour Holiday Hours to Shifts Calculator shows:
Want to understand why your holiday may be shown in hours? See Annual Leave in Hours Explained.
For example:
Holiday balance:
68h 30m
Normal paid shift:
7h 30m
Result:
9 full shifts + 1 hour remaining
Hundred Hour is not just a calculator.
The Guides library explains decimal time, payroll hours, shift calculations and annual leave in plain English.
Understand what decimal hours are, how they work and why they are used.
Convert normal minutes into decimal hours and find quick answers for individual minute values.
Turn decimal values back into normal hours and minutes.
Understand payroll hours, timesheet conversions, breaks, overtime and weekly working-time calculations.
Learn how to calculate shift hours, working time and hours across different schedules.
Understand annual leave in hours and convert holiday balances into days or shifts.
Guides for shift-based working patterns, hourly leave balances and healthcare-related time calculations.
Learn how decimal time is used for billable hours, legal time recording and other specialist applications.
Start with some of the most useful Hundred Hour guides:
Use decimal hours, timesheets or holiday-hour calculations regularly?
Bookmark Hundred Hour in your browser so you can return whenever you need a quick conversion.
Use the Time Converter for normal and decimal time, or the Holiday Hours to Shifts Calculator when you need to understand an hourly leave balance.
Decimal hours express time as a decimal fraction of an hour rather than as normal hours and minutes.
For example: 7 hours 30 minutes = 7.50 decimal hours
30 minutes equals: 0.50 hours
0.75 hours equals: 45 minutes
7:30 means 7 hours 30 minutes.
7.30 decimal hours means 7 hours 18 minutes.
So: 7:30 = 7.50 decimal hours
Divide the minutes by 60.
For example: 45 ÷ 60 = 0.75
So: 45 minutes = 0.75 hours
Multiply the decimal part by 60.
For example: 0.75 × 60 = 45
So: 0.75 hours = 45 minutes
Yes.
Enter your holiday balance and normal paid shift length into the Hundred Hour Holiday Hours to Shifts Calculator.
It will show how many full shifts your balance represents and how many hours or minutes remain.
No.
Hundred Hour can be used for: