Hours Calculator
Accurately track your time, deduct breaks, and estimate your total earnings.
Hours Calculator
Need to add up your work hours for the week? This calculator takes your start and end times for each day, computes daily hours, adds them for the week total, and optionally calculates your gross pay.
How to Use This Calculator
- Enter your start time and end time for each day.
- Enter any break/lunch deduction per day.
- Optionally enter your hourly rate for pay calculation.
- Click Calculate to see daily hours, weekly total, and gross pay.
Example Calculation
Monday–Friday, 9:00 AM – 5:30 PM, 30-minute lunch break daily:
- Daily hours: 8:30 − 0:30 break = 8 hours
- Weekly total: 8 × 5 = 40 hours
- At $22/hour: $880 gross pay
- With 2 hours overtime (over 40): 2 × $33 = $66 extra → $946 total
Overtime Rules (US)
- Federal FLSA: Overtime (1.5× rate) for hours over 40 in a workweek
- California: Overtime for hours over 8 per day AND over 40 per week; double time after 12 hours/day
- Many states have their own overtime rules — always check your state law
Common Mistakes to Avoid
- Not deducting unpaid breaks — Meal breaks (30+ minutes) are typically unpaid. Include break deductions for accurate hours.
- Forgetting daylight saving time — Clocks change can add or subtract an hour from your shift. Note if your shift spans a DST change.
- Rounding incorrectly — Some employers round to the nearest 6 or 15 minutes. Know your employer's rounding policy to reconcile any discrepancies.
Frequently Asked Questions
How do I convert minutes to decimal hours?
Divide minutes by 60. 45 minutes = 45/60 = 0.75 hours. 30 minutes = 0.5 hours. 15 minutes = 0.25 hours. This matters for pay calculations: 8 hours 15 minutes = 8.25 hours × hourly rate.
What is a time card and how is it different from this calculator?
A time card is a physical or digital record of all punches (in/out) throughout the day. Our Time Card Calculator handles multiple in/out punches per day for shift workers.
Conclusion
Accurate time tracking prevents payroll disputes and ensures you're paid correctly for every hour worked. Use this calculator every week to verify your time before submission — especially for overtime-eligible positions.
Related: Time Card Calculator | Time Calculator | Salary Calculator
Payroll Tip
Did you know? Even small rounding errors (like 5 minutes per day) can add up to over 20 hours of missed pay over the course of a year.
