Free tools for time, rates and invoicing
Calculate work hours, convert time, set freelance rates and prepare invoices. Use these tools without creating an account.
Time and timesheets
Add up shifts, convert time formats and count working days.
Time to decimal
Convert hours and minutes to decimal hours, or back again.
Free, no signupTime-card calculator
Add daily hours, deduct breaks and export a weekly timesheet.
Free, no signupHours calculator
Calculate a shift's hours, unpaid breaks and billable time.
Free, no signupWorking-days calculator
Count working days with your schedule, holidays and time off.
Free, no signupTime-duration calculator
Find the interval between two dates and times, with explicit offset settings.
Free, no signupRates and profitability
Plan rates and check margins from your own assumptions.
Invoices and payments
Prepare invoices and work out what an overdue invoice is owed.
Invoice generator
Create an invoice, receipt, quote or proforma PDF in your browser with tax, logo and saved drafts.
Free, no signupLate payment interest calculator
Work out UK statutory interest, fixed compensation and the total now owed on an overdue invoice.
Free, no signupLearn the basics behind the tools
Short guides on the records and formulas the calculators rely on.
What is a timesheet?
What a timesheet records, a labelled example week, and why payroll and client billing read the same hours differently.
How to calculate billable hours
Turn tracked time into billable hours and the decimal totals an invoice needs.
Setting a billable rate
The cost-plus formula behind an hourly rate, with worked examples you can adapt.