Calculate your working hourssimply and for free
Work hours calculator, time slot calculator, overtime, schedule planner and centesimal conversions. Instant results, PDF & CSV export.
Instant
Real-time results as you type. No loading time.
100% Private
Your data stays on your device. Nothing sent to our servers.
PDF & CSV Export
Export your calculations as PDF, CSV, or share a direct link.
Labor Law Compliant
Overtime calculation with legal premiums, centesimal format for payroll.
Our most popular tools
Choose the calculator that suits your needs.
Work Hours Calculator
Calculate your daily and weekly working hours with break management and overtime.
CalculateHour Calculator
Add, subtract and convert hours in decimal and centesimal format.
CalculateTime Calculator
Calculate the duration between two times or add durations easily.
CalculateMauricette Calculator
The modern alternative to Calculette Mauricette for calculating your working hours.
CalculateAdditional tools
The complete work hours calculation suite
hourscalculatorpro.com is the most comprehensive suite of work hours calculation tools available. Whether you need to calculate daily hours, weekly working time, or verify overtime, our time slot calculator and work hours tools support every step.
Accurate overtime calculations
Our tools support overtime calculation with configurable legal premiums. Results are displayed in hours:minutes and in centesimal format, the standard used for payroll processing.
Privacy and simplicity
All calculations are performed locally in your browser. No data is sent to our servers. Your schedules remain strictly private. No registration required — start calculating immediately with our free work hours calculator.