Professional services
Law Firm Billable Hours Calculator
Billable hours from a working week, and what share of a paid day actually reaches a client bill.
Result
Business arithmetic for running a practice, not legal advice. Fee agreements, contingency limits, trust accounting and fee splitting are governed by the rules of professional conduct in your jurisdiction, and several of them are strict. Check the applicable rules before any of this affects a client agreement. The gap between the stated rate and the effective rate is the number worth watching. Three separate leaks stack up: time that is never billable, billed time written down before invoicing, and invoices never paid.
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About this calculator
Why is my effective rate so much lower than my hourly rate?
Because three things reduce it in sequence. Unbillable time, write-downs before the invoice goes out, and unpaid invoices each take a slice, and together they commonly remove a third.
What billable share is realistic?
Measure your own for a month. Most practitioners find it lower than they assumed once business development, administration and reading are counted honestly.
The formula
billable hours = hours worked x billable share; collected = hours x rate x realization x collection
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