How many staff does a daycare need? Staffing a center by room, hours and ratio

Start with the number that isn't up to you.

Federal CCDF rules do not set numeric ratios; each state must describe group size limits and child-to-caregiver ratios by age in its CCDF Plan (45 CFR 98.41(d)).

The binding numbers for your center come from your state child care licensing agency, and they change by age group — your infant room and your pre-K room do not staff the same way.

For a planning baseline, Caring for Our Children standard 1.1.1.2 — a national best-practice guideline from the AAP, APHA and NRC, not law — recommends center ratios of 3:1 with a maximum group of 6 for children 12 months and younger, 4:1 (group 8) for 13–35 months, 7:1 (group 14) for 3-year-olds and 8:1 (group 16) for 4- and 5-year-olds.

It covers school-age rooms too: 10:1 (group 20) for 6–8-year-olds and 12:1 (group 24) for 9–12-year-olds.

NAEYC, which accredits child care programs, publishes its own suggested ratios for accredited programs — 1:4 for infants birth through 15 months and 1:10 for preschool — as voluntary accreditation criteria, not law.

The arithmetic from there is one division per room.

Staff on the floor in a room equals children divided by the ratio, rounded up.

An infant room of 6 children at 3:1 needs 2 staff at all times; over an 11-hour day, that room alone consumes 22 teacher-hours, whether one person works all 22 or the load splits across shifts.

Run the division for every room and add the results: that total is your daily teacher-hours.

Breaks don't come out of the coverage. CFOC says that at nap time for children birth through 30 months, ratios must be maintained at all times regardless of how many children are sleeping, and must not be relaxed during an adult's break.

For center children 31 months and older, at least one adult should be physically present in the nap room and maximum group size must still be maintained.

So at nap time, a break has to be backfilled by someone else rather than subtracted from the count — and what your state requires beyond that is a question for your licensing agency.

Work from your state's numbers. The ratios above are best-practice baselines, not your rule.

Pull your state's ratios and group size caps from your licensing agency — the state rules your license is held to (what a daycare license requires walks through that file) — and run the rest of this page with those numbers in place of the baselines.

The model below uses three fixed assumptions: full enrollment, an 11-hour day (7 a.m. to 6 p.m.), and 8-hour shifts.

Rooms are sized to stay within the CFOC group caps and filled to the cap — the 36- and 72-child pre-K groups split into rooms of 16 or fewer (16 + 16 + 4 at 36 children; four 16s and an 8 at 72) — which is why 36 pre-K children cost 5 staff on the floor, not the four and a half staff a bare division suggests.

A different room split changes the count: three rooms of 12 would need 2 staff each, 6 in all.

Center size	Infants (12 mo and under, 3:1)	Toddlers (13–35 mo, 4:1)	3-year-olds (7:1)	4–5-year-olds (8:1)	Peak classroom staff
60 children	6 → 2	16 → 4	14 → 2	24 → 3	11
100 children	12 → 4	24 → 6	28 → 4	36 → 5	19
150 children	18 → 6	32 → 8	28 → 4	72 → 9	27

Each cell reads children → staff on the floor.

Now convert coverage into headcount.

Peak staff times hours open gives daily teacher-hours: 11 × 11 = 121 for the 60-child center, 19 × 11 = 209 at 100 children, 27 × 11 = 297 at 150.

At 8-hour shifts, the centers need 121 ÷ 8, 209 ÷ 8 and 297 ÷ 8 classroom FTEs — 15, 26 and 37 whole shifts, each with an eighth of a shift left over.

Those counts run above the peak floors (11, 19 and 27) because the day is longer than a shift: 11 hours of coverage takes more than one 8-hour shift per seat, and the extra shifts are the opening and closing shoulders.

Add the support layer the next section sizes — 1, 2 and 3 floaters, plus one director and one cook at each size — and the three models total 18.1, 30.1 and 42.1 FTEs of payroll: 19, 31 and 43 people with every FTE rounded up to a full-time body, or one fewer at each size if the leftover eighth-shift is absorbed into a floater's hours.

Across the three sizes, that is one total staff FTE per 3.3 to 3.6 children.

A model, not a mandate. These outputs follow from the assumptions above — CFOC baselines, full enrollment, an 11-hour day, 8-hour shifts.

They are not a prescription and not a compliance determination.

Part-time schedules, staggered pickup and a different age mix all move the answer, so re-run the model with your state's ratios and your own hours before you post a single job.

Floaters first, because breaks and absences don't pause the coverage. The model assumes ratios hold all day, and Caring for Our Children recommends that, at nap time, ratios for children birth through 30 months hold even while an adult takes a break — so someone has to rotate in while a teacher eats lunch, and someone has to cover the classroom when a teacher calls out.

Whether your state requires coverage through breaks in the classroom is a question for your licensing agency.

The model sizes floaters at about one per five to six rooms, rounded up: 1 at the 60-child center (6 rooms), 2 at 100 (10 rooms) and 3 at 150 (14 rooms).

A floater who is between relief assignments is also your substitute queue.

A director at every size. The model carries one director at 60, 100 and 150 children — running enrollment, family communication, paperwork and the schedule while the classrooms run.

Whether a director can also be counted in ratio is decided by your state's rule, not by this model; ask your licensing agency how your chapter treats it.

Kitchen and office. The model adds one full-time cook at each size; a center running a full meal program scales that with meals served.

Front-desk and office work stays folded into the director's day at these sizes; if you would rather split it into its own role, that position goes through the same math and into the same total.

For context, BLS OEWS for May 2025 counts, in the private child care services industry (NAICS 6244): 347,720 preschool teachers, 269,970 childcare workers, 140,750 teaching assistants and 60,540 preschool and daycare administrators — classroom roles first, then the administrative layer around them.

The sourced benchmark here is a share of expenses, not of revenue.

Treasury (2021), citing a Center for American Progress cost analysis, put wages at at least 50–60 percent of child care expenses on U.S. averages, and noted that labor's share is larger for infant care.

Read that against the model above: every FTE you add is mostly wages, and your infant rooms — the tightest ratio and so the most staff-hours per child in the model — are the coverage where, per Treasury, labor's share runs largest.

The same Treasury report said most for-profit child care facilities operate on razor-thin profit margins usually below 1 percent — its characterization of the industry in 2021, not a measured current national figure.

The practical takeaway for a staffing decision is that the ratio math sets your floor, and the schedule you build around that floor is your single biggest cost lever: a staffing model and a budget are, in practice, the same document.

Run both together. Before you add a room or extend your hours, price the FTEs the change pulls through payroll and check the result against enrollment — before you commit the schedule, not after.

Wage-hour questions about how those FTEs are paid, classified and scheduled for overtime go to employment counsel or your state labor agency, not to a ratio worksheet.

Run the model on your own center in six steps:

1. Pull your state's ratios and group size caps from your child care licensing agency.
2. List every room at licensed capacity: age band, children, group cap.
3. Divide children by the ratio and round up — that is staff on the floor for the room.
4. Multiply each room's staff by the hours that room runs; add the rooms up for daily teacher-hours.
5. Divide teacher-hours by your shift length for classroom FTEs.
6. Add floaters, a director and kitchen or office support. That total is the staffing plan you hire against.

Room / age band	Children at capacity	Your state's ratio	Staff needed (÷ ratio, round up)	Group cap check
Infant room (worked example: CFOC baseline 3:1)	6	3:1	2	6, cap 6
Toddler room (13–35 months)	—	—	—	—
3-year-old room	—	—	—	—
4–5-year-old room	—	—	—	—
School-age room (6–12)	—	—	—	—

The empty rows are yours to fill.

The example row uses the CFOC baseline so you can see the division — your state's number replaces it, and it is the number that governs.

This is a planning model. No worksheet makes a staffing plan compliant — your license terms and your state's current rule do.

Confirm ratios, group sizes and who may be counted in ratio with your state child care licensing agency before you commit a schedule to it.

This page is employer information, not licensing or legal advice. The ratios, group sizes and staffing rules that govern your center are set and enforced by your state child care licensing agency — confirm the current rules there before you hire or schedule.