Calculator hub

Professional Calculators

Use these time totals for planning, then apply the contract, payroll and local rules that govern the actual work arrangement.

Decision paths

Connect the metrics before acting

Use the calculators in this hub together and confirm that their periods, units and assumptions are compatible.

4 tools

professional

Calculate net working hours from a same-day start time, end time and unpaid break.

professional

Convert an entered local clock time between two UTC offsets for a stated date and offset scenario.

professional

Estimate a sequential project duration from work, review and contingency days that you choose.

professional

Calculate a planning hourly rate from an annual revenue target, annual business costs and billable hours.