Hourly invoice calculator
Type each piece of work and the time it took, as 2:30, 2h 30m, 90m or 2.5. The calculator rounds up to the increment you bill in, multiplies by your rate, and turns every row into a line on a new invoice.
2 h 30 min
$125.00
40 min → 45 min
$37.50
3 h 30 min
$175.00
- Billable time
- 6 h 45 min (6.75 h)
- Total before tax
- $337.50
Each row becomes a line in hours at your rate. Add tax and your details in the editor.
Rounding billable time
Most people who bill by the hour round each piece of work up to a fixed increment rather than charging exact minutes. Six minutes (a tenth of an hour) is common for lawyers and consultants, fifteen minutes for most freelance work. Whatever you choose, say it in your contract or proposal, and round each task, not the day's total, so the client can follow the arithmetic.
Choose “Exact minutes” to bill time as it was recorded. Hours are carried to four decimal places, so 20 minutes is 0.3333 h, and the amount is rounded to your currency once per line.
Writing hours on an invoice
Give each line a description the client recognises, the date or week if it helps, the hours as the quantity and your hourly rate as the price. A client checking the bill should be able to match every line to work they asked for. Put the rate in the proposal first, so the invoice is never where they learn it.