Everhour shows capacity, time off, and planned work, while a lightweight calculation gives you a fast utilization check.
Measure billable utilization against total capacity and see exactly how many hours you're leaving on the table each period.
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A lightweight utilization rate answers a narrow question: how much of a person's available work time turned into billable work for the period? The numerator is billable hours. The denominator is the capacity base you choose, such as gross scheduled capacity, net working hours after PTO and holidays, or total logged hours. The result only means something when you label that denominator.
For U.S. teams, federal law does not set a professional-services utilization target. The FLSA does not define full-time or part-time employment, so full-time capacity belongs to employer policy rather than a federal legal threshold. Many firms use 40 hours per week as gross capacity because federal overtime rules require covered nonexempt employees to receive overtime pay for hours worked over 40 in a fixed 168-hour workweek.
A lightweight calculation works when you need a quick read, not a full operating model. Use three inputs: billable hours, gross capacity, and nonworking time removed from capacity. A 40-hour weekly baseline creates 2,080 annual gross hours before company PTO, holidays, unpaid leave, or other absences reduce available time under your policy.
The common mistake is skipping the denominator label. A consultant with 126 billable hours against 160 gross hours has 78.75% gross-capacity utilization. The same 126 billable hours against 150 net available hours after 10 hours of holiday or PTO has 84% net-working-hours utilization. Both figures are valid only if the report names the capacity base.
Use this formula: utilization rate = billable hours divided by available hours, multiplied by 100. Available hours must match the policy you want to measure. Gross capacity shows the share of scheduled capacity that became billable. Net working capacity removes approved nonworking time first, so it focuses on time the person was actually available to work.
For example, a team member has 160 gross capacity hours in a month, takes 10 hours of holiday or PTO, and records 126 billable hours. Net available hours are 150. Divide 126 by 150, then multiply by 100. The person's net-working-hours utilization is 84%. Keep gross and net results in separate columns when leaders compare periods or roles.
A one-off calculation is enough for a staffing check, a monthly review, or a single invoice-period question. It breaks down when managers need recurring targets, planned capacity, scheduled time off, role-level comparisons, or a consistent way to separate billable and non-billable work across projects. The lightweight result then becomes a report, not a spreadsheet cell.
Everhour Resource Planning gives teams visual timelines, member and project views, weekly capacity, availability gaps, scheduled time off, and planned-vs-actual comparisons. That workflow keeps utilization tied to real assignments instead of after-the-fact math. The calculator still helps spot the number; the managed workflow explains whether the number came from realistic capacity.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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Yes. Use billable hours and a named available-hours denominator. The calculation stays lightweight when the denominator is already defined by policy, such as 40 scheduled hours per week or net working hours after approved PTO and holidays. The result loses meaning when the denominator changes from report to report.
Subtract PTO first when the report measures net-working-hours utilization. Do not subtract PTO when the report measures gross-capacity utilization. U.S. federal law does not mandate paid vacation or holiday time for private employers, so the subtraction comes from employer policy, contract terms, or another applicable rule.
Many U.S. firms use 40 weekly hours as a gross capacity baseline because federal overtime rules require covered nonexempt employees to receive overtime pay for hours worked over 40 in a fixed 168-hour workweek. That baseline equals 2,080 gross annual hours before PTO, holidays, unpaid leave, or other absences.
No. Total logged time measures recorded activity, while available time measures capacity under the denominator policy. A person can log non-billable admin work, internal meetings, training, or business development. Those hours can explain low billability, but they should not replace the available-hours denominator unless the report is explicitly measuring share of logged time.
No. Mixing denominators makes people and periods look better or worse for reasons unrelated to billable output. Pick gross capacity, net working hours, or another named base before comparing roles, clients, or months. Separate columns work better when leaders need both views.
Everhour Resource Planning shows capacity and workload on visual timelines with member and project views. Managers can set weekly capacity per person, account for scheduled time off, spot availability gaps, and compare planned capacity with actual tracked time before utilization becomes a month-end surprise.
Everhour Reporting turns logged time, budgets, costs, and project data into customizable reports. Teams can add columns such as member, project, client, billable time, labor costs, and budget metrics, then export reports as CSV, Excel/XLSX, or PDF for review.
Use a quick rate for the first answer, then manage capacity in Everhour with timelines, scheduled time off, weekly capacity, and planned-vs-actual visibility.
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