Convert Delivered Hours into Staffed FTE Capacity

How to Use This Tool

Account for utilization and nonproductive shrinkage instead of assuming every paid hour is deliverable. Convert required billable hours into staffed FTE capacity using paid hours, target utilization and an explicit nonproductive shrinkage rate.

The decision this tool supports

Dividing work by 40 hours assumes every paid hour reaches a customer and hides meetings, leave, administration and sustainable utilization. This page keeps the decision bounded to staffed fte capacity required and the supporting outputs shown beside it. Billable Hours to FTE does not import an account, infer a market rate, or silently substitute an industry average.

Inputs and units

The Billable Hours to FTE calculation uses Required delivered hours, Paid hours per FTE, Target billable utilization, Nonproductive shrinkage. Keep all money values in one currency and all time, distance, mass, energy or volume entries in the unit printed beside the field. Mixing Billable Hours to FTE scopes can produce a plausible number with the wrong meaning.

• Required delivered hours is entered in hours/week.
• Paid hours per FTE is entered in hours/week.
• Target billable utilization is entered in %.
• Nonproductive shrinkage is entered in %.

Formula and worked check

Deliverable hours/FTE = paid hours × utilization × (1 − shrinkage); staffed FTE = required delivered hours ÷ deliverable hours/FTE. Six hundred delivered hours with 40 paid hours, 75% utilization and 10% shrinkage provide 27 hours per FTE and require 22.22 FTE. The Billable Hours to FTE default is an executable known-answer case, not a benchmark or recommendation. Change one input and verify that the direction of staffed fte capacity required still matches the stated relationship.

How to interpret the result

Use the decimal as workload capacity, then round and schedule by skills, coverage intervals and employment constraints. The additional Billable Hours to FTE outputs expose the denominator, comparison, capacity or reverse value needed to audit the primary result instead of presenting one unexplained number.

Assumptions

• Utilization and shrinkage are separate multiplicative reductions.
• Required hours and paid hours cover the same period.
• Average work is interchangeable across modeled FTEs.

Save the Billable Hours to FTE input values and date with any material decision. A later Billable Hours to FTE rerun is reproducible only when the same assumptions and units are available.

Limitations and safety boundary

It excludes queueing, skill mix, part-time schedules, overtime, holidays, demand peaks, management span and service-level requirements. Billable Hours to FTE is an estimate and cannot replace a contract, local code, licensed professional, calibrated measurement, lender statement or platform report where one governs the decision.

Source and privacy

The Billable Hours to FTE definition or rule was checked against U.S. Small Business Administration — Manage your finances on 2026-08-26. Recheck U.S. Small Business Administration — Manage your finances when a specification or policy behind Billable Hours to FTE can change. Billable Hours to FTE arithmetic runs in this browser tab; ecech does not receive the values through a calculation API.