Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Current ratio (per FTE)
30.0
FTEs needed to hit target ratio
19.2
Additional FTEs needed
3.2
% over (or under) target capacity
20.0%
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How to use this
- 1Enter total active caseload/participants.
- 2Enter direct-service staff ftes.
- 3Enter target ratio (clients per fte).
- 4Read your current ratio (per fte) on the right — it updates as you type.
- 5Hit Share to keep the scenario or send it to someone.
About this calculator
Direct service nonprofits, from case management agencies to youth programs, need a working ratio of clients or participants to front-line staff FTEs to plan hiring and avoid the quality erosion and burnout that come with chronic overload. This calculator divides your total active caseload or participant count by full-time-equivalent direct service staff to produce a ratio, then compares it against a target you set based on sector norms for your specific service type, since a reasonable caseworker ratio in intensive case management (1:15-25) looks nothing like a reasonable ratio for a drop-in youth program (1:40+) or an after-school tutoring program.
Worked example
Using the values the calculator loads with:
Inputs
- Total active caseload/participants: 480
- Direct-service staff FTEs: 16
- Target ratio (clients per FTE): 25
Results
- Current ratio (per FTE): 30
- FTEs needed to hit target ratio: 19.2
- Additional FTEs needed: 3.2
- % over (or under) target capacity: 20.0%
What each field means
Inputs
- Total active caseload/participants
- The total active caseload/participants used in the calculation. Starts at 480 so you have a working example on load.
- Direct-service staff FTEs
- The direct-service staff ftes used in the calculation. Starts at 16 so you have a working example on load.
- Target ratio (clients per FTE)
- The target ratio (clients per fte) used in the calculation. Starts at 25 so you have a working example on load.
Results
- Current ratio (per FTE)
- Returned as a decimal number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- FTEs needed to hit target ratio
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Additional FTEs needed
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- % over (or under) target capacity
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
What ratio should I use as a target?
It depends heavily on service intensity: intensive case management (housing, child welfare) often targets 1:15-25, community health workers 1:30-50, and light-touch programs like drop-in tutoring can run 1:50+. Check your state licensing requirements first since many human services programs have mandated maximums, not just best-practice suggestions.
Should administrative or supervisory staff count in the FTE figure?
No, use only staff who carry a direct caseload or deliver direct service hours. Including a program director who spends 80% of their time on grant management and supervision will understate your real per-worker load and mask a staffing shortage.
What happens when we're chronically over target?
Expect rising staff turnover (nonprofit sector burnout is directly linked to caseload overload in multiple workforce studies), declining service quality metrics, and increased risk of missed compliance requirements in regulated programs. Use this number to make the hiring case to funders and the board before those consequences show up.
Can we solve an over-capacity ratio without new hires?
Sometimes: triage lower-need clients to a lighter-touch service tier, add case aides or paraprofessionals who can absorb administrative tasks from full caseworkers, or reduce intake temporarily while working down a backlog, but these are stopgaps, not permanent fixes for structural understaffing.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Program-to-Staff Ratio Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/program-staff-ratio
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/program-staff-ratio" target="_blank" rel="noopener">Program-to-Staff Ratio Calculator — RevenueLab</a> (2026).</p>
Source: [Program-to-Staff Ratio Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/program-staff-ratio) (2026).