Add a line per client, project or task: hours worked (decimal like 2.5 or clock format like 2:30) times your hourly rate. Get line totals and the invoice total. Free, private, printable.
| Client / task | Hours | Rate $/h | Amount |
|---|
Timeabit is a free time tracker with a day ledger that shows every untracked gap, so nothing billable slips away. Invoicing built in when you need it.
Try Timeabit free →Billable amount = hours worked × hourly rate. The catch is the hours: studies of freelancers consistently find 10–20% of billable income is lost to untracked work — the quick call, the revision round, the afternoon nobody logged. Calculating is the easy half; capturing is where the money leaks.
This calculator accepts both: 1.75 and 1:45 are the same hour and three-quarters. Invoices usually show decimal hours; timesheets often use h:mm.
Many professionals bill in 6-minute (0.1h) or 15-minute (0.25h) increments, always rounding up to the next increment per task. Whatever rule you use, state it on the invoice and apply it consistently.
Yes. No account, no upload — the math runs in your browser and your lines are saved only on this device.
Add one line per rate — e.g., "Acme — design" at $95 and "Acme — meetings" at $60. The total combines them.
This tool shows pre-tax totals. Timeabit's built-in invoicing can apply your tax rate and payment terms automatically.