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Use this work hours calculator as a simple time-card tool for shifts, lunch breaks, weekly totals, decimal hours, and optional hourly pay. It is built for people checking a roster, timesheet, casual job, contractor invoice, or payroll estimate before tax and deductions.
Updated: May 7, 2026
Looking for a related estimate? Try Overtime Calculator or Salary After Tax Australia.
What you will get
Clear input, result, and explanation in one place
The result shows total hours, total minutes, a daily breakdown, and an optional pay estimate.
Calculator
Inputs
TimesheetEnter each day’s start and end time, apply breaks, and optionally estimate pay with an hourly rate.
The calculator totals each row, subtracts break time, and can optionally estimate earnings from an hourly rate.
Result
Weekly total
37 hours 30 minutes
That is 2,250 total minutes across the rows you entered.
Total hours
37 hours 30 minutes
Big number summary.
Total minutes
2,250
Timesheet-friendly total.
Pay estimate
Add rate
Optional hourly rate.
Daily breakdown
Mon
7 hours 30 minutes
450 minutes
Same day
Tue
7 hours 30 minutes
450 minutes
Same day
Wed
7 hours 30 minutes
450 minutes
Same day
Thu
7 hours 30 minutes
450 minutes
Same day
Fri
7 hours 30 minutes
450 minutes
Same day
Sat
0 minutes
0 minutes
Same day
Sun
0 minutes
0 minutes
Same day
How to read this
Timesheet totals are most useful when you keep the start and end times consistent and apply the same break rules each day. If you add an hourly rate, the calculator gives you a simple estimate you can compare with payroll or a job offer.
Timesheet totals are planning estimates. Always compare the result with your payroll rules and approved break settings.
Calculator purpose
A work hours calculator adds up the time you spent working across one or more days. It is useful when you want a fast timesheet-style estimate without manually adding each shift, converting minutes, or checking the total on a separate spreadsheet.
Method
The calculator compares each day’s start and end time, subtracts unpaid breaks, and totals the result across the week. It is practical for shift work, flexible schedules, lunch breaks, overnight shifts, internships, contractor logs, and casual jobs where hours change from day to day.
Breaks
Breaks reduce the paid or counted time for a shift. Entering break minutes keeps the result closer to the real hours that matter for timesheets, invoices, and payroll checks.
Examples
The page is useful for weekly rosters, overtime checking, internship logs, and casual jobs where the hours can vary from day to day. For example, 9:00 to 5:30 with a 30-minute lunch equals 8 paid hours. Showing the daily breakdown beside the weekly total makes the result easier to trust.
Payroll format
Timesheets often show hours and minutes, while payroll systems may use decimal hours. Eight hours and 30 minutes is 8.5 hours, not 8.30 hours. A good work-hours page should make that conversion clear so pay estimates are easier to check.
Why it matters
Accurate hours help with wages, overtime checks, budgeting, and comparing offers. Even a small difference in weekly hours can become important when the same pattern repeats over time.
Common questions
Enter each day’s start and end time, then subtract breaks from the total. The calculator adds the rows together for you.
Breaks are removed from the total so the result reflects work time rather than the full shift length.
Calculate the time between clock-in and clock-out, then subtract unpaid lunch or break minutes from that shift.
Decimal hours convert minutes into part of an hour. For example, 30 minutes is 0.5 hours and 15 minutes is 0.25 hours.
Yes. The page totals all the rows into a weekly result.
Enter an hourly rate and the calculator will estimate earnings based on the hours in your timesheet.
Yes. The calculator is designed for timesheet-style planning where shifts may cross midnight.
Helpful guide
Understand take-home pay, gross vs net pay, payslips, deductions, monthly salary after tax, overtime, and job-offer comparisons.
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