ECVC Age Category Calculator

Date of Birth
Use a custom “As of” date Default is Today
As of
Close the drawer to switch back to using today.

By default, results are calculated up to today. Open the drawer above to choose a custom “As of” date; close it to revert to today.

Age
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Age Category
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School Entry Years (Ontario)
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More Information

How Age Categories Are Calculated

  • Infant: 0 to 17 months old
  • Toddler: 18 to 30 months old
  • Preschool: 31 to 43 months old
  • JK (Junior Kindergarten): 44 to 55 months old
  • SK (Senior Kindergarten): 56 to 71 months old
  • Aged Out (6+): 72 months and older

JK Eligibility in Ontario

In Ontario, children are eligible to start Junior Kindergarten (JK) in September of the year they turn 4 years old. For example, if a child turns 4 anytime in 2023 (even if their birthday is in December), they are eligible to start JK in September 2023.

This system allows children to start school as young as 3 years and 8 months, or as old as 4 years and 8 months when they begin JK in September.