The full toolkit
All calculators
Nine 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 Hours between a start and end time minus breaks, plus hours per week, month and year from a schedule.
- Time Clock Calculator Clock in/out punches to decimal payroll hours.
- 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).
Which one do I need?
- I have start and end times for one shift → Hours Worked Calculator.
- I have a whole week of shifts with breaks → Time Card Calculator.
- I have a column of clock-in / clock-out punches → Time Clock Calculator.
- I just need to add or subtract times (no pay) → Time Calculator.
- I need to turn minutes into decimal hours → Decimal Hours Calculator.
- I want hours per week / month / year and FTE → Hours Worked Calculator (second calculator on the page).
- I want the overtime split on my hours → Overtime Calculator.
- I have an hourly rate and want weekly / annual pay → Hourly Pay Calculator.
- I want to convert a salary to an hourly rate (or back) → Salary to Hourly Calculator.
- I want take-home pay after tax — per paycheck, or per year from a salary → Paycheck Calculator.
How they work
Every calculator runs on one shared, unit-tested calculation engine, so the same inputs always produce the same result. Nothing you enter leaves your browser — see the Privacy Policy. Hours and overtime arithmetic is exact; pay and tax figures are withholding estimates for United States, Canada, United Kingdom, Australia, with US tax coverage limited to federal, FICA, and a defined set of states for 2026. Where a jurisdiction is not modelled the tool says so. Full detail is on the Methodology & Sources page, and the guides explain the rules behind each result.