Hours Calculator - Work Time, Converter & Earnings

Three modes, one tool

This calculator handles three everyday time-and-money questions. Pick a mode, fill in the fields, read the answer. No sign-up, no spreadsheet.

Mode	What it does	Typical use
Work Time	Subtracts start from end, minus break	Timesheets, shift tracking, overtime proof
Hour Converter	Converts hours to minutes, days, weeks, months	Project planning, course duration, flight logging
Earnings	Multiplies hours by rate, shows daily/weekly/monthly equivalents	Freelancing, part-time jobs, contract negotiations

How to use the Hours Calculator - step by step

Calculator mode - choose Work Time (clock-in/out), Hour Converter (unit conversion) or Earnings (pay estimate).
Start time (Work Time mode) - enter when your shift began in 24-hour format, e.g. 08:00 or 22:00.
End time (Work Time mode) - enter when your shift ended, e.g. 16:30 or 06:00.
Break (Work Time mode) - optional, enter total break time in minutes. Common values: 30, 45, 60.
Shift crosses midnight - check this box if your end time is the next day (night shifts).
Number of hours (Converter mode) - type any number of hours (e.g. 2000) to see the equivalent in days, weeks and months.
Hours worked / Hourly rate (Earnings mode) - enter total hours and your rate per hour in any currency.
Read the results - the calculator displays hours and minutes, decimal hours, and a full breakdown.

Quick reference - common work schedules

Schedule	Hours/day	Hours/week	Hours/month	Hours/year
Standard 9-to-5	8	40	~173	2,080
Part-time (4 h/day)	4	20	~87	1,040
3x12 shift pattern	12	36	~156	1,872
EU max (48 h/wk)	9.6	48	~208	2,496
Freelance average	6	30	~130	1,560

Practical examples

Example 1: Standard office day
Start 08:30, end 17:00, lunch break 30 min
Result: 8 hr 0 min (8.00 h decimal)

Example 2: Night shift
Start 22:00, end 06:00, break 45 min, crosses midnight
Result: 7 hr 15 min (7.25 h decimal)

Example 3: Convert 2,000 hours
= 83.33 calendar days = 250 work days (8 h) = 50 work weeks

Example 4: Freelance earnings
120 hours at 45/h
Gross pay: 5,400 | Weekly equivalent (40 h): 1,800

Example 5: Short shift with no break
Start 14:00, end 18:30, break 0
Result: 4 hr 30 min (4.50 h decimal)

FAQ

What is decimal time?

Decimal time expresses hours and minutes as a single number. 7 hours 30 minutes = 7.50 h. Timesheets, payroll systems and project tracking tools often use this format because it is easier to multiply by an hourly rate.

How does the night shift calculation work?

When you check "Shift crosses midnight", the calculator adds 24 hours to the end time before subtracting. So 22:00 to 06:00 becomes 22:00 to 30:00, giving 8 hours (minus any break).

How many work hours are in a month?

It depends on the month. A common estimate is 160 hours (4 weeks x 40 h). The actual number ranges from 160 to 184 depending on how many weekdays the month has. The yearly average at 40 h/week is 2,080 hours (52 weeks x 40).

Does the earnings mode account for taxes?

No. It calculates gross pay only (hours x rate). Net pay depends on your country, tax bracket, social contributions and deductions. Use the result as a starting point and apply your local tax rules separately.

Can I calculate overtime hours?

Yes. Run the Work Time mode for your full shift to get total hours, then subtract your standard hours manually. For example, if you worked 10 hr 30 min and your standard day is 8 h, you have 2 hr 30 min overtime.

What is the difference between calendar days and work days?

A calendar day is 24 hours. A work day is typically 8 hours. So 40 hours = 1.67 calendar days but 5 work days. The converter shows both so you can pick the one that fits your context.

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