Everhour keeps work-hour totals organized, while a simple utilization rate shows how much available time became billable work.
Measure billable utilization against total capacity and see exactly how many hours you're leaving on the table each period.
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Utilization rate answers a practical services question: out of the hours a person or team was available to work, how many turned into billable client work? The simple version uses billable hours divided by available hours. It works for a person, role, team, project group, or whole firm, as long as you keep the numerator and denominator at the same scope and date range.
The denominator deserves the most attention. In the United States, the FLSA does not define full-time or part-time employment, so full-time capacity is an employer policy input. Many U.S. firms start with a 40-hour week because federal overtime rules require covered nonexempt employees to receive overtime pay for hours worked over 40 in a fixed 168-hour workweek.
A simple calculation should collect only the inputs that change the answer: billable hours, gross capacity, and any leave or holidays you subtract from capacity. A 40-hour weekly baseline creates 2,080 gross annual hours before company PTO, holidays, unpaid leave, or other nonworking time. That gross number is useful for planning, but it overstates availability when the person was actually away.
For a fast check, write the denominator next to the result. A rate labeled "75% of 160 gross hours" means something different from "75% of 120 net available hours." OPM lists 11 federal holidays in 2026 for federal employees, but private-sector paid holidays remain an employer policy matter unless another law or contract applies. Use the policy that applies to your team.
The formula is: utilization rate = billable hours ÷ available hours × 100. Available hours can mean gross capacity, net working hours after PTO and holidays, or total logged hours. Pick one definition before you calculate. For a simple employee-level month, use the same month for billable hours and available hours.
Example: a consultant has 160 gross capacity hours in a four-week month. The firm nets out 40 hours of paid vacation, leaving 120 available hours. The consultant records 90 billable hours. The utilization rate is 90 ÷ 120 × 100 = 75%. If the same 90 billable hours were divided by 160 gross hours, the rate would be 56.25%, so the denominator changes the story.
A one-off calculation is enough when you need a quick utilization check for one person, one project, or one month. It also works for rough staffing math before a deeper review. Keep the input list short, and label the result with its denominator so nobody compares gross-capacity utilization against net-available utilization by accident.
A managed workflow becomes necessary when utilization affects staffing, billing, payroll review, or performance targets over time. Everhour timecards can show daily, weekly, and monthly work-hour totals, compare project hours with working hours, and feed Team Hours reporting, so managers can review utilization inputs before they become reports or capacity decisions.
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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The simplest formula is billable hours divided by available hours, multiplied by 100. A person with 30 billable hours and 40 available hours has a 75% utilization rate. The result is only comparable across people or periods when everyone uses the same denominator definition.
Use gross capacity for a broad staffing view and net available hours for a cleaner view of time actually available for work. Net available hours subtract PTO, holidays, unpaid leave, and similar absences. The FLSA does not require payment for vacations, sick leave, or holidays, so private-employer leave inputs come from policy, contract, or another applicable rule.
A quick check often uses a rough capacity number, such as 40 hours for one week or 160 hours for four weeks. A monthly report may subtract PTO, holidays, unpaid leave, or other absences. The billable-hours numerator can stay the same while the denominator changes, which moves the percentage.
A 100% utilization result means every available hour in the chosen denominator was billable. That is rarely a healthy target for services teams because internal work, training, sales support, management, and planning still need time. U.S. federal sources do not set a professional-services utilization target; firms set targets by role, service line, or industry benchmark.
Paid leave should reduce available hours when the denominator is net working hours. OECD annual-hours definitions exclude time not worked because of public holidays, annual paid leave, illness, maternity or parental leave, and similar absences. Gross-capacity utilization can leave paid leave inside the denominator, but the report label must say so.
Everhour timecards show daily, weekly, and monthly work-hour totals for payroll review and team oversight. Teams that track both project time and working hours can compare project hours with working hours, then use Team Hours reporting to spot missing hours, excess hours, and capacity mismatches before calculating utilization.
Use Everhour timecards to review working hours, project hours, time off, and capacity before utilization reports shape staffing decisions and billing conversations.
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