Billable Hours Calculator
Estimate your annual billable hours, revenue, utilization, and what you could earn at a higher utilization target.
Results
Total working hours/year
1,920
Billable hours/year
1,152
Projected annual revenue
$172,800
Effective hourly rate
$90
Revenue at target
$216,000
Revenue gap
$43,200
Difference between current utilization and target utilization.
Tip: share this calculator by copying the URL—your inputs are saved in the query string.
The billable hours calculator helps lawyers, consultants, agencies, and freelancers estimate how much revenue their time actually generates. Most professionals bill between 60-70% of their working hours — the rest goes to admin, meetings, and business development. By adjusting your utilization rate, you can see exactly how much revenue you're missing and what hitting a higher utilization target would mean for your bottom line. This tool is especially useful for law firms tracking billable hour requirements, marketing agencies pricing retainers, and solo consultants setting their hourly rates.
How to calculate billable hours and annual revenue
Formula: Annual Revenue = Hourly Rate × Hours/Week × Weeks/Year × (Utilization Rate / 100) Example: $200/hr × 40 hrs/week × 48 weeks/year × 65% utilization = $249,600/year. Effective hourly rate = $249,600 ÷ 1,920 total hours = ~$130/hr.
FAQ
What is a good utilization rate for a law firm?expand_more
How do I track billable hours?expand_more
What counts as non-billable time?expand_more
How many billable hours should a lawyer bill per year?expand_more
How do I increase my utilization rate?expand_more
Churn Rate Calculator
Calculate monthly and annual churn, retention rate, and customer half-life for subscription businesses.
LTV Calculator
Estimate customer lifetime value using simple, e-commerce, or discounted models.
Cost Per Lead Calculator
Compute CPL from spend and leads, or estimate budget needs using benchmarks.
Need help implementing automation?
If these numbers look meaningful, we can help you automate the underlying workflows—so you capture the savings.