Free tool
Ratio and group size calculator
Enter the children in a room and see the Schedule 1 staffing, the maximum group size and the mixed-age rule, or the s. 8.1 calculation for a family age group.
3 employees required for 11 children
Toddler: 1 to 5, maximum group 15, 1 in 3 qualified.
During arrival and departure and the rest period the ratio may drop to two-thirds, 1:8 for this group: 2 employees (s. 8(4)). Never for infant groups, never outdoors.
Adults in attendance (s. 8(6)): with six or more children outside infant groups at the centre, at least two adults must be at the centre; the second need not be in this room.
Read the ratios guide for the rules behind each line.
O. Reg. 137/15 as consolidated on e-Laws (consolidation from July 1, 2026; last amendment O. Reg. 197/26). The calculator applies the regulation’s arithmetic to what you enter; licence conditions and a director’s approvals can change the answer, and the Ministry decides compliance.