Calculators
Free calculators for turning clock time into decimal hours and planning annual leave. No sign-up, nothing to install.
Convert normal hours and minutes into decimal hours or convert decimal hours back into standard time.
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Hours to shiftsAlready know your holiday balance in hours? Convert it into full shifts, equivalent shifts, hours and minutes remaining and decimal leave hours.
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On the way
More Hundred Hour calculators are planned for shift hours, weekly working time and billable hours. Have a calculation you would like us to build? Tell us about it.
Work out the paid length of a shift from start time, finish time and unpaid breaks.
Add up a week of shifts and see the total in hours and minutes and in decimal hours.
Turn time spent on a job into billable decimal hours for invoices and time records.