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🎒 School Age Calculator

Find out when your child starts kindergarten based on their birthday and your state or country's cut-off date rules.

Understanding Kindergarten Cut-Off Dates

Most school systems require children to turn 5 years old on or before a specific cut-off date to start kindergarten that year. Children born after the cut-off start the following school year.

Research suggests that children who are the oldest in their class (born just after the cut-off) tend to perform slightly better academically and have higher confidence levels — a phenomenon called the "relative age effect."

'What is kindergarten redshirting?', 'answer' => 'Redshirting is the practice of delaying a child\'s school entry by one year so they are among the oldest in their class. Research has mixed findings on its long-term benefits — it may help socially and emotionally in early years but the advantage typically fades by middle school.'], ['question' => 'Does cut-off date affect a child\'s development?', 'answer' => 'Yes — the "relative age effect" shows that children born just after the cut-off (youngest in class) are statistically more likely to be diagnosed with ADHD, have lower academic performance, and be less likely to be selected for gifted programs compared to classmates born just after the previous cut-off.'], ['question' => 'What grade would a child be in if they started in [year]?', 'answer' => 'Kindergarten (K) = first school year, Grade 1 = second year, and so on. To find the current grade, subtract the kindergarten start year from the current year and add 0 for kindergarten. The calculator shows this automatically.'], ]" />

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