Billable Hours Calculator

Calculate the value of your billable time based on your rate and duration. Perfect for professionals who need to track and calculate their billable hours value.

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Billable Amount
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By using this calculator, you agree to the terms of use described in the FAQ section below.

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How It Works

Enter Your Rate

Input your hourly, daily, or monthly billable rate to start calculating your earnings

Specify Time

Enter the exact hours, days or time duration you worked on billable activities

View Total

Get an instant calculation of your total billable amount with a detailed breakdown

6-Minute Billing Increments Chart
Billable Hours Chart: Standard billing increments used by professionals to track partial hours
Minutes WorkedBillable Hours
1-6 minutes0.1
7-12 minutes0.2
13-18 minutes0.3
19-24 minutes0.4
25-30 minutes0.5
31-36 minutes0.6
37-42 minutes0.7
43-48 minutes0.8
49-54 minutes0.9
55-60 minutes1.0

You might be wondering

What are billable hours?

Billable hours are the amount of work time that can be charged to clients or employers. This includes time spent directly working on client projects, attending client meetings, or performing billable services. Not all work hours are billable - administrative tasks, internal meetings, and professional development typically aren't billable.

Who needs to track billable hours?

  • Lawyers and legal professionals
  • Consultants and freelancers
  • Agency professionals
  • Accountants and financial advisors
  • Project managers and contractors

How are billable hours calculated?

The billable amount is calculated using this formula:

Total = Billable Rate × Time Duration

For example:

  • Hourly rate: $100
  • Time worked: 2.5 hours
  • Total billable amount: $250

For rate and time conversions, we use these standard assumptions:

  • 1 day = 8 hours
  • 1 week = 40 hours
  • 1 month = 160 hours
  • 1 year = 2,080 hours

What is the 6-minute billing increment?

The 6-minute billing increment is a standard practice, especially in legal and professional services. It divides each hour into 10 parts (60 minutes ÷ 10 = 6 minutes per increment). This makes it easier to calculate partial hours, as each 6-minute increment represents 0.1 hours of billable time.

Terms of Use

This calculator is provided for informational purposes only. The results should be used as estimates and not as definitive calculations. Always verify calculations with your accounting system or financial advisor. Actual billable amounts may vary based on your specific agreements, policies, and local regulations.

Track Your Billable Hours Automatically

Streamline your time tracking with our Slack-integrated timesheet tool. Track billable hours, generate reports, and invoice clients automatically.

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You Without Billable Ninja

  • Employees submit timesheets late or not at all
  • Struggling with accurate billable hours tracking
  • No visibility into project profitability
  • Need to switch between multiple apps and platforms

You With Billable Ninja

  • Automated timesheet reminders
  • Clear insights into billable vs. non-billable time
  • Real-time project budget tracking
  • Everything integrated directly in Slack - no external apps needed