Time Billing Calculator
Convert tracked time into billable amounts with tax
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
Gross amount—
Tax / fee amount—
Net amount—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- 3h 30m at $150/hr with 8% tax → Subtotal $525.00; tax $42.00; total $567.00
- $150/hr × 22.5 h, +10% tax → Subtotal $3,375; with tax $3,712.50
Formula
Hours = hours + minutes/60. Subtotal = hours × rate. Tax = subtotal × tax%. Total = subtotal + tax. Invoice-ready; pair with a free-text invoice generator if you bill clients monthly.
About Time Billing Calculator
Convert tracked time into billable amounts with tax. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is this tool free to use? +
Yes, it is completely free with no registration or download required.
Is my data private? +
Yes. Everything is processed locally in your browser. Nothing is uploaded or stored on our servers.
Does it work on mobile? +
Yes, it works on any device — phone, tablet, or desktop.