Free Tool

Family Milestone Calculator

Time flies faster than you think. See exactly when your child will turn 18, graduate, and reach life's other big moments.

Enter Their Information

Frequently Asked Questions

Enter your child's birthdate in our calculator, and we'll show you the exact date they turn 18, along with a countdown in years, months, and days.
Our calculator shows countdowns for: 18th birthday, 21st birthday, estimated high school graduation (based on US school system), and estimated college graduation.
We estimate high school graduation as May of the year your child turns 18 (or the following May if their birthday is after September 1st), based on typical US school enrollment cutoffs. Actual graduation dates vary by location.
Time flies faster than you think. Knowing exactly how much time you have until major milestones helps you appreciate the present and plan for the future - whether that's writing them a time capsule letter, planning a celebration, or simply being intentional about the time you have together.

Make every moment count

The days are long but the years are short. Start capturing your family's memories, quotes, and milestones today.

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No credit card required. Free forever for basic features.