Little League Age Calculator
Little League places players by league age. Baseball and softball use different dates: baseball uses the player's age on August 31 of the season year; softball uses the age on December 31 of the previous year. Choose the program and season, then enter the birth date.
Before you start
Method : Completed years on Little League's age determination date for the chosen program and season.
Checked : Dates and division ranges compared with littleleague.org on 2026-10-05; boundary tests for the day before, on and after each date.
Review : not reviewed by Little League International; not affiliated with Little League.
Your entries stay in this browser tab; nothing is sent or stored.
How to Use This Calculator
- Choose baseball or softball and the season year.
- Enter the player's birth date.
- Press Calculate league age.
Methodology & assumptions
Step 1 — rules for your selection: the program (baseball or softball) and season year pick the age determination date and the division list. These are stored as data with the date checked (2026-10-05) and the seasons whose age charts were published at that time (2026, 2027). Other seasons are shown as unverified.
Step 2 — date arithmetic: league age = completed years from the birth date to that date. A birthday on the date counts as reached.
Worked examples
Baseball 2026: born August 30 or 31, 2014 → league age 12; born September 1, 2014 → 11.
Softball 2026 (age on December 31, 2025): born December 31, 2014 → 11; born January 1, 2015 → 10. The same January 1, 2015 player is 11 for softball 2027.
League age 13: baseball — Intermediate, Junior or Senior; softball — Junior or Senior (no Intermediate).
Understanding your result
The official age charts and your local league have the final say. Leagues can narrow ranges and rules can change between seasons.
Sources & further reading
- Little League International. League Age Determination.Baseball: age on August 31 of the current year; softball: age on December 31 of the previous year; baseball, softball and Challenger division ranges; 2026 and 2027 age charts listed. Checked October 5, 2026.
- Little League International. Little League Baseball Divisions.Division descriptions. Checked October 5, 2026.
Frequently Asked Questions
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