Calculate your weekly work hours with automatic overtime detection, break deductions, and pay estimates. Enter start/end times and breaks for each day of the week, set your hourly rate and overtime multiplier, and get a full day-by-day breakdown with regular hours, overtime hours, and gross pay. Handles overnight shifts, compressed workweeks, and both daily and weekly overtime thresholds.
Calculate your weekly work hours with overtime detection, break deductions, and pay estimates. Enter your schedule for each day and get a full breakdown instantly — perfect for timesheets, payroll, and freelance billing.
| Day | Hours | Regular | Overtime | Reg. Pay | OT Pay |
|---|---|---|---|---|---|
| Mon | 7h 30m | 7h 30m | — | $187.50 | — |
| Tue | 7h 30m | 7h 30m | — | $187.50 | — |
| Wed | 7h 30m | 7h 30m | — | $187.50 | — |
| Thu | 7h 30m | 7h 30m | — | $187.50 | — |
| Fri | 7h 30m | 7h 30m | — | $187.50 | — |
| Sat | — | — | — | — | — |
| Sun | — | — | — | — | — |
| Total | 37h 30m | 37h 30m | — | $937.50 | — |
A work hours calculator is a productivity tool that totals your weekly working hours from a daily schedule, automatically handles breaks, detects overnight shifts, and identifies overtime. Rather than manually adding up hours for each day, you simply enter start and end times and the tool gives you a precise breakdown in seconds.
This tool goes further by calculating gross pay estimates, applying both daily and weekly overtime rules, and showing a full day-by-day breakdown. It's designed for employees tracking their timesheets, freelancers billing by the hour, and managers verifying payroll figures.
Quickly total your daily hours at the end of each week before submitting a timesheet to your employer or HR system.
Track hours per project day and instantly see your total billable hours and estimated invoice amount at your hourly rate.
Automatically handles overnight shifts, so night-shift and rotating-shift workers get accurate totals without manual midnight arithmetic.
Cross-check your payslip by entering your schedule and hourly rate. Instantly see what your regular and overtime pay should be.
Healthcare workers with complex schedules, 12-hour shifts, and irregular overtime benefit from the per-day and weekly breakdown.
Part-time workers and students can track hours across a few working days and see weekly pay estimates before their payday.
All calculations happen in your browser in real time — no data is sent to any server.
Net Hours = (End Time − Start Time) − Break MinutesThe gross duration from start to end is calculated in minutes. The break is then deducted. If the end time is earlier than or equal to the start time, 24 hours (1,440 minutes) is added, signalling a midnight-crossing shift.
Daily OT = max(0, Net Hours − Daily Threshold)
Regular = min(Net Hours, Daily Threshold)Each day is evaluated independently. Any hours above the daily threshold (default 8h) in a single day are flagged as daily overtime at the multiplied rate.
Weekly OT = max(0, Total Hours − Weekly Threshold)
Effective OT = max(Daily OT Sum, Weekly OT)The weekly threshold (default 40h) is also checked. The effective overtime is the higher of daily or weekly overtime totals — this prevents double-counting while always awarding the correct overtime amount.
Pay = (Regular Hours × Rate) + (OT Hours × Rate × Multiplier)Regular hours are paid at the base rate. Overtime hours are paid at the rate multiplied by the overtime multiplier (e.g. 1.5). The sum gives your estimated gross pay before tax deductions.
Monday–Friday, 9:00–17:00 with a 30-minute break each day.
| Days worked | 5 |
| Gross per day | 8h 0m |
| Break per day | 30 min |
| Net per day | 7h 30m |
| Total net hours | 37.5 hours |
| Overtime | None (< 40h weekly threshold) |
| Gross pay at $25/h | $937.50 |
Monday–Friday, 22:00–06:30 (overnight, 8.5h gross, 30 min break = 8h net). Daily threshold = 8h.
| Days worked | 5 |
| Gross per day | 8h 30m (crosses midnight) |
| Net per day | 8h 0m |
| Total net hours | 40 hours |
| Daily OT | 0h (exactly at threshold) |
| Weekly OT | 0h (exactly at 40h limit) |
| Gross pay at $30/h | $1,200.00 |
Mon–Thu 07:00–19:00 (11h net after 60 min break) + Saturday 09:00–13:00 (4h). Daily threshold = 8h, weekly = 40h.
| Total hours | 48h |
| Daily OT (4 days) | 4 × 3h = 12h OT |
| Weekly OT | 48 − 40 = 8h |
| Effective OT | max(12h, 8h) = 12h OT |
| Regular hours | 36h |
| Gross pay at $40/h | 36 × $40 + 12 × $60 = $1,440 + $720 = $2,160 |
Work Hours Calculator is part of the Time & Date collection. If you want a broader view of similar workflows, open the Time & Date category page or browse all QuickTools categories.
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