A law firm economics instrument
What does six minutes cost your firm?
Estimate the gross billable value that may go unrecorded when attorneys reconstruct their day after the work is done. Use your own rates, calendar, and capture assumptions.
Run your estimateOne missed six-minute entry at $425 is $42.50 of gross billable value.
Lost billables calculator
Enter your firm’s assumptions
No names, emails, or client details are requested. The estimate runs in your browser.
Estimate readout
Gross billable value that may go unrecorded
12 hours of time per working week under these assumptions.
| Period | Estimated value |
|---|---|
| Weekly | $5,100 |
| Monthly average | $20,400 |
| Annual | $244,800 |
How the estimate is calculated
- Missed hours per week
8 timekeepers × 3 increments × 0.1 hour × 5 days = 12 hours - Weekly value
12 hours × $425 = $5,100 - Annual value
$5,100 × 48 working weeks = $244,800 - Monthly average
$244,800 ÷ 12 months = $20,400
This is an estimate based only on the assumptions you enter. It models gross billable value, not amounts invoiced, realized, collected, or recoverable. TimeSentry does not guarantee recovered time or revenue.
Read the number correctly
An opportunity estimate, not a forecast.
What it includes
Timekeepers, a blended billable rate, your work calendar, and one explicit assumption about uncaptured time.
What it leaves out
Realization, collection, write-offs, contingent matters, alternative fee arrangements, taxes, and the professional judgment required to decide whether work is billable.
Why the formula is visible
You should be able to challenge every assumption. Change any input and the formula trail updates with the estimate.
From estimate to evidence
Let the work create the first draft of time.
TimeSentry uses activity evidence to compose time entries for review. Your firm remains in control of what is approved and billed.