Billable Hours Calculator
Calculate your true client utilization rate, billable versus non-billable weekly hours, annual billable capacity, and the revenue lost to administrative overhead.
Weekly Time Allocation & Utilization
Utilization Rate
60.0%
24 of 40 weekly hours
Annual Billable Hours
1,152 hrs
$115,200 annual billing
Non-Billable Overhead
16 hrs / wk
40.0% unbilled overhead
Value of Unbilled Time
$76,800
768 unbilled hrs @ $100
Step-by-Step Worked Example
Calculation Steps:
How to Use This Calculator
- 1Enter your total desired working hours per week.
- 2Input the hours you actively spend on billable client deliverables.
- 3Enter hours spent on administrative tasks (emails, invoicing, accounting).
- 4Enter hours spent on sales proposals, marketing, and skill development.
- 5Set your target hourly rate to visualize the dollar value of non-billable time.
Assumptions & Limitations
- Estimates are based on standard national averages and current prevailing construction materials and contractor rates.
- Actual trade bids may fluctuate according to local building code requirements, permit fees, and site topography.
- Always obtain multiple written bids from licensed, bonded, and insured contractors before commencing work.
Frequently Asked Questions
What is a realistic utilization rate for solo consultants?
Most successful solo consultants sustain a 55% to 65% utilization rate (22 to 26 billable hours per 40-hour workweek). Maintaining over 75% billable time over long periods usually leads to administrative backlog or burnout.
How can I increase my utilization rate?
You can increase utilization by automating invoice reminders, adopting project management templates, delegating bookkeeping to a virtual assistant, or moving clients from customized proposals to standardized productized services.
Related Cost Calculators
Freelance Hourly Rate Calculator
Calculate your minimum and recommended hourly freelance billing rate based on desired personal take-home income, business overhead, health insurance, retirement, and billable hours.
Freelance Project Cost Calculator
Calculate profitable fixed-price project quotes for freelance clients, factoring in estimated hours, revision buffers, direct expenses, rush fees, and tax reserves.
Break-Even Hourly Rate Calculator
Calculate the absolute minimum hourly billing rate you must charge to cover personal living expenses, business overhead, health insurance, and emergency savings.