Time Card Calculator
It totals a week of shifts, subtracts unpaid breaks, splits regular from overtime hours and works out gross pay.
| Day | In | Out | Break | Hours |
|---|---|---|---|---|
| Mon | 8h 00m | |||
| Tue | 8h 00m | |||
| Wed | 8h 00m | |||
| Thu | 8h 00m | |||
| Fri | 8h 00m | |||
| Sat | — | |||
| Sun | — |
Gross pay for the week
$800.00
Total hours
40h 00m
Regular hours
40h 00m
Overtime hours
0h 00m
Regular pay
$800.00
Overtime pay
$0.00
Gross pay
$800.00
What it calculates
It totals a week of shifts, subtracts unpaid breaks, splits regular from overtime hours and works out gross pay.
Why it matters
Manual timesheet arithmetic is a common source of payroll error, and overtime at time and a half is easy to under-count.
Who it's for
Hourly workers checking their pay, small business owners running payroll, and shift managers approving timesheets.
Formula
- in / out
- Clock-in and clock-out times
- b
- Unpaid break in minutes
- OT
- Hours beyond the weekly threshold, paid at 1.5×
Worked example
Six 8-hour shifts at $20 an hour
- 1Total = 48 hours
- 2Regular = first 40 hours × $20 = $800
- 3Overtime = 8 hours × $30 = $240
$1,040 gross for the week
How the time card calculator works
Each shift is the span from clock-in to clock-out minus the unpaid break. A clock-out earlier than the clock-in is treated as an overnight shift and wraps past midnight. Weekly hours are then split at the overtime threshold — 40 hours under the US Fair Labor Standards Act — with hours above it paid at one and a half times the base rate.
Each shift is the span from clock-in to clock-out minus the unpaid break. A clock-out earlier than the clock-in is treated as an overnight shift, so 22:00 to 06:00 counts as eight hours rather than a negative number.
Weekly hours are split at the overtime threshold — 40 hours under the US Fair Labor Standards Act — with anything above it paid at one and a half times the base rate. Some states add a daily threshold on top.
Common mistakes
- Counting paid breaks as unpaid, or the reverse.
- Rounding each shift to the nearest half hour, which compounds across a week.
- Applying overtime per day when your jurisdiction calculates it per week, or the reverse — California uses both.
Tips and best practice
- Record times to the minute; rounding every shift the same direction quietly shifts real money.
- Check whether your state has daily overtime rules on top of the weekly threshold.
Frequently asked questions
How do I calculate hours worked?
Subtract clock-in from clock-out, then subtract any unpaid break. An 09:00 to 17:00 shift with a 30-minute break is 7.5 hours.
When does overtime start?
Under US federal law, after 40 hours in a week, paid at 1.5× the regular rate. Some states add a daily threshold, and other countries differ.
How do I handle an overnight shift?
Enter the times as they are. A clock-out before the clock-in is treated as crossing midnight, so 22:00 to 06:00 counts as 8 hours.
Should breaks be deducted?
Unpaid meal breaks are deducted; short paid rest breaks are not. Enter only the unpaid minutes.
Related calculators
Methodology & trust
- Formula source
- US Fair Labor Standards Act overtime convention (40 hours at 1.5×).
- Last updated
- 2026-07-28
- Privacy
- Every calculation runs in your browser. No inputs are sent to a server or stored.
- Accessibility
- Keyboard navigable, labeled inputs and WCAG AA color contrast.