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
e.g. 4 for infants, 10 for preschool
Result
Teachers required
4
Monthly classroom labor cost
$15,242
Labor cost per child / month
$476
Labor as % of tuition revenue
39.7%
Children until next hire triggers
1
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How to use this
- 1Enter enrolled children in this age group.
- 2Enter required child-to-teacher ratio — e.g. 4 for infants, 10 for preschool.
- 3Enter fully-loaded pay per teacher ($/hr).
- 4Enter hours per teacher per week (hrs).
- 5Enter average monthly tuition per child ($).
- 6Read your teachers required on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
State licensing sets a maximum number of children per teacher by age group, and that ratio is the single biggest driver of your labor line. This tool takes enrolled children, the mandated ratio, and average fully-loaded teacher pay (wages plus payroll tax and benefits load) and produces the minimum staff count, total classroom labor cost, and labor cost per enrolled child. It also flags when you're one child away from tripping into a new hire, which is the moment most directors get blindsided by a budget swing. Fully-loaded pay usually runs 18-28% above base wage once you add FICA, unemployment insurance, workers' comp, and any health or retirement match, so the loaded-rate input matters more than people think. Use this per classroom or per age group, then sum across the center for a full staffing budget. It does not include a lead-teacher premium or a director's non-teaching hours, both of which you should layer on separately if your model pays leads more than assistants.
Worked example
Using the values the calculator loads with:
Inputs
- Enrolled children in this age group: 32
- Required child-to-teacher ratio: 8
- Fully-loaded pay per teacher: 22 $/hr
- Hours per teacher per week: 40 hrs
- Average monthly tuition per child: 1200 $
Results
- Teachers required: 4
- Monthly classroom labor cost: $15,242
- Labor cost per child / month: $476
- Labor as % of tuition revenue: 39.7%
- Children until next hire triggers: 1
What each field means
Inputs
- Enrolled children in this age group
- The enrolled children in this age group used in the calculation. Starts at 32 so you have a working example on load.
- Required child-to-teacher ratio
- e.g. 4 for infants, 10 for preschool
- Fully-loaded pay per teacher ($/hr)
- The fully-loaded pay per teacher used in the calculation, measured in $/hr. Starts at 22 $/hr so you have a working example on load.
- Hours per teacher per week (hrs)
- The hours per teacher per week used in the calculation, measured in hrs. Starts at 40 hrs so you have a working example on load.
- Average monthly tuition per child ($)
- The average monthly tuition per child used in the calculation, measured in $. Starts at 1200 $ so you have a working example on load.
Results
- Teachers required
- Returned as a whole number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Monthly classroom labor cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Labor cost per child / month
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Labor as % of tuition revenue
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Children until next hire triggers
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
What ratios do states actually require?
It varies widely by state and age band. Infants commonly run 3:1 to 4:1, toddlers 4:1 to 7:1, and preschool 8:1 to 12:1, though a handful of states go looser. Always check your state's licensing agency for the exact number, since group-size caps often apply on top of the ratio and can force an extra teacher even under the ratio math.
Why use a loaded rate instead of base wage?
Base wage understates true cost by 15-30%. Payroll taxes, workers' comp (higher for childcare than office work), health insurance contributions, and paid time off all add up. If you budget on base wage alone you'll consistently run over on payroll, so build the load into every projection.
How do I use the 'children until next hire' number?
It tells you your buffer before enrollment growth forces a new hire. If it shows 1, your next enrollment is expensive because it triggers a full extra teacher salary that isn't offset by one more tuition check. Use it to time enrollment marketing pushes around hiring capacity, not just open slots.
Should I staff to the legal minimum ratio?
Legal minimum is a ceiling on children per teacher, not a target. Many quality-rated programs and NAEYC accreditation standards recommend better-than-minimum ratios, and better ratios reduce turnover and improve retention, which usually pays for itself in reduced hiring and training cost.
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
Classroom Enrollment Breakeven Calculator
Find the minimum enrolled children a classroom needs to cover its costs.
Child-Staff Ratio Compliance Buffer Calculator
See how many absences or arrivals your classroom can absorb before violating ratio.
Teacher Salary Scale Budget Calculator
Project total annual payroll across a step-and-lane teacher salary schedule.
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Childcare Staffing Ratio Cost Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/childcare-staffing-ratio-cost
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/childcare-staffing-ratio-cost" target="_blank" rel="noopener">Childcare Staffing Ratio Cost Calculator — RevenueLab</a> (2026).</p>
Source: [Childcare Staffing Ratio Cost Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/childcare-staffing-ratio-cost) (2026).