Billable Hours Tracker Calculator
Calculate revenue and effective hourly rate from billable hours, rate, and utilization.
Essential for freelancers, consultants, and professional services.
Billable hours targets determine the revenue a consultant, freelancer, attorney, accountant, or service professional must generate — and what utilization rate they need to hit to meet financial goals.
Annual revenue formula: Annual Revenue = Billable Hours × Hourly Rate
Required billable hours from revenue target: Required Hours = Target Annual Revenue ÷ Hourly Rate
Utilization rate: Utilization Rate (%) = (Billable Hours ÷ Total Working Hours) × 100
Total working hours per year (standard): 52 weeks × 40 hours = 2,080 hours Minus: ~10 vacation days (80h) + ~10 federal holidays (80h) + ~5 sick days (40h) = 1,880 available hours
Realistic billable utilization by profession:
- Solo consultants / freelancers: 50–65% utilization (940–1,220 billable hours/year)
- Agency professionals (billed to clients): 70–80% (1,316–1,504 hours/year)
- Law firms (associates): 1,800–2,200 billable hours/year target (very high pressure)
- Accounting (busy season peaks): 55–70% annual utilization
Non-billable time (overhead) — what eats the other hours:
- Business development / sales: 10–20%
- Administration, invoicing, email: 10–15%
- Training and professional development: 5–10%
- Networking and marketing: 5–10%
Effective hourly rate (accounting for non-billable time): Effective Rate = Total Revenue ÷ Total Hours Worked
This is always lower than your billing rate — knowing it prevents underpricing.
Gross profit per billable hour: Gross Profit per Hour = Hourly Rate − Hourly Cost of Delivery
For solo practitioners: cost = hourly overhead (office, software, insurance ÷ working hours) + self-employment tax impact.
Worked example: Freelance web developer. Target annual income: $120,000. Overhead costs: $15,000/year. Hours available: 1,880.
- Target revenue needed: $120,000 + $15,000 = $135,000
- At 60% utilization: 1,880 × 0.60 = 1,128 billable hours/year
- Required rate: $135,000 ÷ 1,128 = $119.68/hour → charge $120+/hour
- Daily billable target: 1,128 ÷ 250 working days = 4.5 billable hours/day
Meeting this target consistently requires excellent client relationships, clear scope agreements, and strict time tracking.