Billable Hours Calculator
Enter your hourly rate, hours worked, and billable percentage. See your total billable amount, effective rate, and annual projection instantly.
Weekly Billable
$7,875
Effective Rate
$175.00/hr
Annual Billable
$393,750
50 weeks
Annual Non-Billable
$168,750
If you recovered just 10% more billable time (moving from 70% to 80%), you would bill an additional $56,250/year. Automatic time tracking typically recovers 15-30% of lost billable hours.
Export your results as PDF or email
Billable Hours by Industry
Billable hour targets vary by profession. Here are the benchmarks that matter for law firms and accounting firms.
Law Firms
Most law firms require associates to bill 1,800-2,000 hours per year. At a $350/hour billing rate, the difference between 1,800 and 2,000 billable hours is $70,000 in annual revenue per attorney. The biggest leak is time spent on case research, internal meetings, and administrative work that never reaches the timesheet.
Time tracking for law firms →Accounting Firms
CPA firms target 1,600-1,900 billable hours per year, with utilization rates of 60-75%. During tax season, billable hours spike but non-billable admin work increases too. The firms that track time automatically during busy season recover 20%+ more billable hours than those relying on end-of-day timesheets.
Time tracking for accounting firms →How to Calculate Billable Hours
Calculating billable hours comes down to three numbers: your total hours, your billable percentage, and your hourly rate. Here is how each step works.
Track total hours
Record every hour you work in a week, including non-billable tasks like emails, meetings, and admin. This is your denominator.
Identify billable work
Separate client-facing, revenue-generating hours from internal work. Your billable percentage is billable hours divided by total hours.
Calculate revenue
Multiply billable hours by your hourly rate. Your effective rate (total billable revenue divided by total hours worked) shows your true earning power.
Tired of Calculating Manually?
Rize captures billable hours automatically. No timers, no timesheets, no end-of-day guessing. Every work session is tracked and categorized by project and client.
More Free Tools
Hours Calculator
Add up hours and minutes for timesheets, payroll, and billing.
Project Tracking ROI Calculator
Estimate recovered billable hours and project margin lift.
Profit Calculator
Find hidden revenue from under-reported billable hours.
Time Audit Calculator
Find the hidden cost of untracked billable hours and timesheet admin.
Timecard & Timesheet Calculator
Enter clock-in/out times and get weekly hours and pay instantly.
Timesheet Template
Download a ready-to-use weekly timesheet as CSV.
Rate Calculator
Convert your hourly rate to annual income after expenses.
Overtime Calculator
Calculate overtime pay with 1.5x and 2x rates instantly.
PTO Calculator
Track PTO accrual, balance, and next accrual date.
Quarterly Tax Calculator
Estimate 1099 quarterly taxes and IRS due dates.
Work Hours Planner
Plan your weekly schedule with focus blocks and breaks.
Weekly Status Report Template
Build a weekly team status report and the AI prompt that writes it.
Time Audit Template
Rank repetitive tasks by hours saved and find what to automate first.
Utilization Rate Calculator
Calculate your team's billable utilization rate and find the revenue hiding in untracked hours.
Retainer Pricing Calculator
Price monthly retainers for your target margin.
Agency Capacity Planner
Monthly billable capacity, open hours, and hiring needs.
Invoice Generator
Turn tracked hours into a branded invoice PDF with a payment link. No sign-up.
Estimate Generator
Build a branded estimate or quote PDF for client work. No sign-up.
Proposal Generator
Build a branded proposal or SOW PDF for client work. No sign-up.
Receipt Generator
Create a branded paid-in-full receipt PDF for services rendered. No sign-up.
Frequently Asked Questions
Multiply your total hours worked by your billable percentage to get billable hours, then multiply by your hourly rate for total revenue. For example, if you work 45 hours per week with a 70% billable rate at $250/hour, your billable hours are 31.5 and weekly revenue is $7,875. The biggest variable is your billable percentage, which drops when non-billable work like admin, meetings, and context switching goes untracked.
A good billable hours percentage is 65-80% depending on your industry. Law firms target 70-85% for associates, accounting firms target 60-75%, and consulting firms target 70-80%. Below 60% usually means too much administrative overhead or poor time capture. Automatic time tracking improves billable percentages by 10-20 points because it captures short tasks and context switches that manual methods miss.
Most law firms require 1,800-2,000 billable hours per year from associates. At a typical 70% billable rate, that means working 2,500-2,850 total hours. The gap between billed and worked hours is where revenue leaks. A lawyer billing at $350/hour who captures just one additional billable hour per day recovers $87,500 in annual revenue. Automatic time tracking helps capture the research, drafting, and client communication that often goes unbilled.
Total hours worked includes everything you do during the workday, while billable hours are only the portion you can charge to a client or project. Non-billable hours include internal meetings, email, administrative tasks, business development, and training. The ratio of billable to total hours is your utilization rate. Most professionals overestimate their billable percentage by 10-15% because they forget to count non-billable tasks that consume their day.
Normal billable hours range from 25 to 35 per week depending on your industry. Law firm associates target 36-40 billable hours per week (1,800-2,000/year). Consulting firms expect 30-35. Accounting firms during off-season expect 25-30, rising to 50+ during tax season. The difference between your total hours and billable hours is your overhead — admin, internal meetings, and business development that cannot be billed to clients.
The fastest way to increase billable hours is to reduce unbillable time leaks: batch email into 2 daily blocks, decline non-essential internal meetings, and use automatic time tracking to capture short tasks (under 6 minutes) that manual methods miss. Most professionals lose 1-2 billable hours per day to context switching and admin. Rize users typically recover 15-20% more billable time by capturing work that would otherwise go unlogged.