Is this calculator free?
Yes. The calculator is free to use and share. The paid Billing Kit is optional for freelancers who want templates to turn the numbers into quote, invoice, payment term, and follow-up documents.
Free freelancer billing tool
Freelance rate calculator for quotes, retainers, and invoices.
Work backward from income, expenses, taxes, time off, and billable capacity so the next project quote is grounded before it becomes an invoice.
Use it before you send a price.
Set a rate floor before a client asks for a quote.
Turn planned hours and scope buffer into a project price.
Pressure-test retainers and day rates before sending terms.
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After the number
Turn the rate into documents clients can actually approve.
The paid Billing Kit adds quote, invoice, payment terms, overdue follow-up, and closeout review templates. The future workspace is waitlist-only while the workflow is validated.
Should I show this math to clients?
Usually no. Use the math to protect your floor, then present the client with a clear quote, scope, timeline, and payment terms.
What does BillableKit sell?
BillableKit currently offers the free calculator, billing guides, and a one-time Billing Kit. The full saved-client workspace is still on the early-access list.
Want the templates too?
Get practical billing notes and product updates.
Join for launch notes, billing workflow examples, and the first invite when saved clients, invoices, and reminders open.