Free tool
Free billable hours calculator for invoices
Track billable hours, calculate the invoice amount, and turn client work into a free invoice — no login required.
Quick rates
Current amount
$0.00
Current time
0:00
$75.00 / hour
Saved time entries
Saved locally in this browser. No account required.
Total time
0:00
Total amount
$0.00
Entries
0
From time to invoice
From tracked time to paid invoice
Billtivo turns saved billable time into reports, invoices, Pay Now, reminders, and paid status.

Related billable time workflows
Turn tracked time into invoice-ready billing
These pages explain how billable hours, timesheets, and saved time entries can move into invoice creation and payment follow-up.
Billable hours to invoice
See how billable hours become invoice-ready amounts before client billing.
Timesheet to invoice calculator
Calculate invoice-ready totals from tracked time, rates, and billable entries.
Track billable hours by client
Organize billable time by client and project before creating invoices.
Convert time entries to invoice
Move saved time entries into invoice context without rebuilding the bill manually.
Free billable hours calculator
Use a free billable hours calculator before preparing invoice-ready work.
Related workflows
Popular billing workflows
Explore tools and workflows that help freelancers and small service teams move from tracked work to invoices and payment follow-up.
Step 1
Track billable time
Start the timer when you begin client work. Add the client, project, hourly rate, and notes so the billing context is not lost.
Step 2
Calculate the invoice amount
The calculator turns tracked time and hourly rate into an invoice-ready amount, so you can see what the work is worth before billing.
Step 3
Turn time into an invoice
When the timer is saved, move to Billtivo's free invoice creator or use Billtivo to manage reports, approvals, and reminders.
FAQ
Billable time tracker FAQ
Use this free calculator when you need a quick way to measure client work before creating an invoice.
Is this billable time tracker free?
Yes. You can track time, calculate the amount, and save entries in your browser without logging in.
Does it save data to Billtivo?
No. This public tool saves entries locally in your browser. To keep client, project, invoice, and reminder data together, use Billtivo.
Can I create an invoice from the tracked time?
Yes. After calculating the time value, use the invoice button to open Billtivo's free invoice creator.
Who is this for?
It is useful for freelancers, consultants, small agencies, and service teams that bill clients by time or project work.