Hourly Invoice Calculator
Turn tracked billable hours into an invoice total. Add reimbursable expenses and an optional verified tax rate.
Formula: Labor = hours x hourly rate. Subtotal = labor + expenses. Total = subtotal + entered tax.
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Enter the numbers
Calculated result
Labor amount
$1,572.50
18.50 hours x $85.00
Subtotal
$1,692.50
Labor plus $120.00 in expenses
Tax
$0.00
0.00% of the entered subtotal
Invoice total
$1,692.50
Subtotal plus calculated tax
Formula: Labor = hours x hourly rate. Subtotal = labor + expenses. Total = subtotal + entered tax.
Use the result correctly
What the calculation means
Use the time increment and rounding method agreed with the client. List work by period, project, or task when useful, and keep reimbursable expenses separate from professional fees.
Useful for
- Convert a timesheet into a billable labor amount
- Add approved expenses to hourly work
- Check an invoice total before entering the line items
Frequently asked questions
How should partial hours be entered?
Use decimals that match your tracking method: 15 minutes is 0.25, 30 minutes is 0.50, and 45 minutes is 0.75 hours.
Should expenses be taxed with labor?
Treatment varies. This calculator applies the entered rate to labor plus expenses; enter only amounts and rates appropriate for your transaction.
Can I round billable time?
Use the increments and rounding rules agreed with the client. Document them in the contract or engagement terms.
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