Bat Size Calculator
Find the right bat length and drop weight from a player's age, height, and weight — plus the certification stamp your league requires. Height is the primary guide; weight fine-tunes by an inch.
Check the fit
A chart gets you close, but the swing decides it. Run these three quick tests with the actual bat before you commit:
- 1Stand the bat upright next to the player’s leg. The knob should reach the center of the palm when the arm hangs down.
- 2Hold the bat flat across the chest, pointing straight out. The fingertips of the outstretched arm should just reach the end of the barrel.
- 3Grip the handle and hold the bat straight out to the side, arm fully extended, for 20–30 seconds. If the barrel dips, the bat is too heavy.
Bat length by height
| Height | Bat length |
|---|---|
| 3'0"–3'4" | 26" |
| 3'5"–3'8" | 27" |
| 3'9"–4'0" | 28" |
| 4'1"–4'4" | 29" |
| 4'5"–4'8" | 29–30" |
| 4'9"–5'0" | 30–31" |
| 5'1"–5'4" | 31" |
| 5'5"–5'8" | 32" |
| 5'9"–6'0" | 33" |
| 6'1"+ | 34" |
Bat length by age
| Age | Bat length |
|---|---|
| 4–5 | 24–25" |
| 6–7 | 25–27" |
| 8–9 | 27–28" |
| 10 | 28–29" |
| 11–12 | 29–31" |
| 13–14 | 31–32" |
| 15–16 | 32–33" |
| 17+ | 33–34" |
Recommended bats
Placeholder gear picks. Links are affiliate slots — see our affiliate disclosure.
Youth pick
USA Baseball youth bat (placeholder)
Stamped for Little League, Cal Ripken, PONY and most youth leagues.
High school pick
BBCOR high school bat (placeholder)
BBCOR .50 certified, −3 drop for NFHS and NCAA play.
Frequently asked questions
Related tools
Sources
- Easton bat sizing guide
- Rawlings glove & bat fit charts
- JustBats bat sizing chart
- Wilson / A2000 glove sizing
- Little League bat & equipment rules
Last reviewed September 18, 2026. Rules and manufacturer charts change — verify against current official sources each season.