The full toolkit
All calculators
Eleven calculators, grouped by the problem they solve. Each one works offline in your browser and shows how the result is calculated.
Work Hours
Turn clock times and shifts into hours worked.
- Time Card Calculator A full weekly timesheet: daily start/end times, breaks, overnight shifts, overtime, and gross pay.
- Hours Worked Calculator The quick one: how many hours between a start and end time, minus a break.
- Time Clock Calculator Clock in/out punches to decimal payroll hours.
- Working Hours Calculator Schedule-level: hours per week / month / year, PTO adjustment, and FTE.
- Time Calculator Pure time arithmetic: add and subtract hours, minutes, and seconds.
- Decimal Hours Calculator Minutes ↔ decimal hours, with a conversion chart.
Overtime
Split regular and overtime hours and pay.
Pay & Salary
Convert between hourly, weekly, and annual pay.
Paycheck
Estimate withholding and take-home pay (US, 2026).