Hours to Days Converter
48 hours equals 2 calendar days, while 16 hours equals 2 workdays at 8 hours per workday. This hours to days converter switches between hours, 24-hour calendar days, and custom-length workdays. Use the workday length field when your schedule uses 7.5, 8, 10, or 12-hour shifts.
Quick answer
1 calendar day is always 24 hours.
Calendar days always use 24 hours. Workdays use the hours-per-day value above, so 40 hours is 5 workdays at 8 hours per day but 4 workdays at 10 hours per day.
Result
2 calendar days
Equivalent hours
48 hours
Workdays
6 workdays
Calendar-day rate
1 calendar day = 24 hours
Workday rate
1 workday = 8 hours
What this tells you
- •1 calendar day is always 24 hours.
- •1 workday equals the hours per workday value you enter, such as 7.5 or 8.
- •To convert hours to calendar days, divide by 24.
- •To convert hours to workdays, divide by the workday length.
How to Use
- 1Enter the amount you want to convert.
- 2Choose whether the amount starts in hours, calendar days, or workdays.
- 3Set the workday length in hours when you want a workday result or comparison.
- 4Read the converted value, plus the matching hours, calendar days, and workdays.
How It Works
Formula
calendar days = hours / 24
workdays = hours / workday hours
hours = workdays x workday hoursCalendar days use a fixed 24-hour day, so 48 hours divided by 24 equals 2 calendar days. Workdays use the exact hours-per-day value you choose. If a workday is 8 hours, 40 hours divided by 8 equals 5 workdays. To go back to hours, multiply workdays by the same workday length.
Calculation note: values are processed in the order shown above, using the current input units.
Worked Examples
Convert 48 hours to calendar days
Divide 48 by 24 to get 2. With an 8-hour workday setting, the same 48 hours also equals 6 workdays.
Convert 37.5 hours to workdays
Divide 37.5 by 7.5 to get 5. That same schedule time is 1.5625 calendar days because calendar days always use 24 hours.
Hours to Days Quick Table
Common hour totals shown as 24-hour calendar days and as 8-hour workdays.
| Hours | Calendar days | Workdays at 8 hours/day |
|---|---|---|
| 8 | 0.333333 | 1 |
| 12 | 0.5 | 1.5 |
| 16 | 0.666667 | 2 |
| 24 | 1 | 3 |
| 32 | 1.333333 | 4 |
| 40 | 1.666667 | 5 |
| 48 | 2 | 6 |
| 72 | 3 | 9 |
Calendar days always use 24 hours. Change the workday length in the tool when your shift is not 8 hours.
Common mistakes
- Treating a workday like a full 24-hour day. A workday is the shift length you choose, such as 7.5, 8, 10, or 12 hours.
- Leaving the workday length at 8 when your schedule uses a different shift length.
- Using this converter for date planning. For weekends, holidays, or actual due dates, use a business days calculator or date calculator instead.