How do I calculate hours in decimal format?

The results show both hours/minutes (e.g., "8h 30m") and decimal hours (e.g., 8.50 hours). To convert: divide minutes by 60 and add to whole hours. 30 minutes = 0.5 hours, so 8h 30m = 8.5 hours.

Does the calculator deduct breaks?

No — it calculates the full elapsed time between clock-in and clock-out. If your employer does not pay for lunch breaks, subtract the break duration from each day manually before entering your clock-out time.

What is the overtime threshold?

The tool uses the federal weekly 40-hour threshold — hours above 40 are counted as overtime at 1.5×. Some states calculate daily overtime for hours over 8 in a single day.

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How to Calculate Timecard Hours Free — Weekly Totals (2026)

By Rui Barreira · Last updated: 18 June 2026

Add up your weekly hours from clock-in and clock-out times with the brevio Timecard Calculator — free, no signup, runs entirely in your browser. Enter each day's start and end times and get total hours, regular hours, overtime, and estimated pay instantly.

Calculating timecard hours manually is tedious and error-prone, especially with overnight shifts or inconsistent schedules. The tool handles time arithmetic automatically and splits hours into regular (up to 40 hours) and overtime (over 40 hours) using the standard US federal threshold.

How to Use the Tool

Enter clock-in and clock-out times for each day using the time pickers (24-hour or AM/PM format).
Leave days blank for days you did not work — they are excluded from the total.
Optionally enter your hourly rate to see your estimated gross weekly pay, including overtime at 1.5×.
Read the results: daily hours, total hours, regular vs overtime split, and pay estimate.

How Timecard Hours Are Calculated

For each day, the tool subtracts the clock-in time from the clock-out time to get hours worked. For overnight shifts (clock-out the next morning), the tool detects when clock-out is earlier than clock-in and adds 24 hours to the difference.

Total weekly hours are the sum of all daily hours. Regular hours are capped at 40. Any hours above 40 are overtime. Under the US Fair Labor Standards Act (FLSA), overtime pay is 1.5× the regular rate for non-exempt employees — the tool uses this multiplier when estimating pay.

If you work a split shift (e.g., 8am–12pm and 2pm–6pm), you will need to enter each block as a separate day row or add the hours manually. The tool supports one clock-in/clock-out pair per day.

Frequently Asked Questions

How do I calculate hours in decimal format?: The results show both hours/minutes (e.g., "8h 30m") and decimal hours (e.g., 8.50 hours). Payroll systems typically use decimal hours for wage calculations. To convert: divide minutes by 60 and add to whole hours. 30 minutes = 0.5 hours, so 8h 30m = 8.5 hours.
Does the calculator deduct breaks?: No — it calculates the full elapsed time between clock-in and clock-out. If your employer does not pay for lunch breaks, subtract the break duration from each day manually before entering your clock-out time, or adjust by ending your entry earlier.
What if I work more than 8 hours in a day?: Some states (notably California) calculate daily overtime for hours over 8 in a single day, rather than only weekly overtime over 40 hours. This tool uses the federal weekly 40-hour threshold. Check your state's overtime rules if you may be subject to daily overtime.

Frequently Asked Questions

How do I calculate hours in decimal format?: The results show both hours/minutes (e.g., "8h 30m") and decimal hours (e.g., 8.50 hours). To convert: divide minutes by 60 and add to whole hours. 30 minutes = 0.5 hours, so 8h 30m = 8.5 hours.
Does the calculator deduct breaks?: No — it calculates the full elapsed time between clock-in and clock-out. If your employer does not pay for lunch breaks, subtract the break duration from each day manually before entering your clock-out time.
What is the overtime threshold?: The tool uses the federal weekly 40-hour threshold — hours above 40 are counted as overtime at 1.5×. Some states calculate daily overtime for hours over 8 in a single day.