LegalFirmTools

Firm Utilization Calculator

Measure utilization, realization and collection across the firm and see the share of total capacity that reaches the bank.

Last reviewed

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Free · No sign-up · Runs in your browser

Firms track hours because hours are easy to count. The three percentages that determine what those hours are worth are tracked separately, by different people, and almost never multiplied together.

When they are, the result is frequently sobering: three rates that each look acceptable in isolation can combine into an overall yield well under two-thirds. This calculator measures all three from one period and reports the product.

Your numbers

Results update as you type. Nothing is sent anywhere.

Result

Overall yield

85.61%

Effective rate per hour recorded

$265.38

Utilization
67.71%
Realization
91.54%
Collection
93.52%
Non-billable hours
1,240
Value recorded
$806,000
Value invoiced
$737,800
Value lost
$116,000

This tool performs arithmetic on the values you enter. It does not provide legal advice and does not create an attorney-client relationship.

Utilization measures how much of the available day becomes recorded billable time. Realization measures how much of that survives to an invoice. Collection measures how much of the invoice is paid.

Multiply the three together and you get the overall yield - the share of theoretical capacity that reaches the bank.

How to use the firm utilization calculator

  1. Enter the total available working hours across the firm for the period.
  2. Enter the billable hours recorded and the hours that reached an invoice.
  3. Enter the cash collected and the standard rate.
  4. Compare the three rates and identify the weakest.

What people use this for

  • Diagnosing whether a revenue shortfall is a capacity, billing or collection problem.
  • Comparing teams or offices on the metric that matters.
  • Building a case for administrative support with a utilization figure.
  • Setting targets that account for all three stages rather than one.

Worked examples

Every figure below is produced by running this calculator against the example inputs, so the numbers always match the tool.

A quarter at a small firm

3,840 available hours, 2,600 recorded, 2,380 invoiced, $690,000 collected at a $310 standard rate.

Overall yield
85.61%
Utilization
67.71%
Realization
91.54%

High utilization, weak collection

The same firm recording more hours but collecting considerably less.

Utilization
80.73%
Collection
74.07%
Value lost
$341,000

Three numbers, three different problems

Low utilization means capacity is going to work nobody pays for: administration, supervision, business development, or simply not enough matters. Low realization means recorded time is written down before invoicing. Low collection means invoices are not paid.

Each has a different fix, and reporting a single blended figure hides which one the firm actually has. That is the argument for measuring all three separately from the same period.

Fix the weakest, not the strongest

Because the three multiply, raising the lowest number produces a larger gain than pushing the highest one higher. A firm at 70% utilization, 92% realization and 95% collection should be looking at utilization, not at collection.

That is frequently the opposite of where attention goes, because collection is visible and utilization is diffuse. The arithmetic is unambiguous about which is worth more.

Methodology and assumptions

What this calculator does, and what it deliberately does not do.

  • Utilization = recorded billable hours ÷ available hours. Realization = invoiced hours ÷ recorded hours.
  • Collection = cash collected ÷ invoiced value at the standard rate. Overall yield = collected ÷ recorded value.
  • The effective rate divides cash collected by hours recorded.
  • The tool performs arithmetic or date counting on the values you enter. It does not interpret a rule, a statute or a contract.
  • Nothing you type is transmitted or stored - the calculation runs entirely inside your browser.

This website provides general informational and productivity tools and does not provide legal advice or create an attorney-client relationship.

The date and deadline tools count days exactly as you instruct them. They do not interpret court rules, statutes of limitation, filing requirements or any other legal authority, and they do not know the rules of your jurisdiction.

Always verify any date, fee, or calculation against the governing rule, the court calendar and your own professional judgement. If you need legal advice, consult a lawyer licensed in your jurisdiction.

Frequently asked questions

What counts as available hours?

Working hours in the period across fee earners, excluding leave. Whether to exclude training and firm meetings is a policy choice - apply it consistently.

Should support staff be included?

Only if they record billable time. Otherwise their cost belongs in overhead rather than in the capacity figure.

What is a good overall yield?

Compare against your own previous periods. Published benchmarks vary so widely by practice area and firm size that they are rarely actionable.

How often should this be measured?

Quarterly is usually enough to see a trend without reacting to noise. Monthly figures on a small firm are dominated by billing timing.

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