What size bat does my kid need? Bat size chart by age, height and weight

Length comes from your player's height and weight; the weight (the drop) from strength and your league's rules. The charts below are the makers' guidance, not rules. Your league can set a longest bat or a drop limit, and those come first.

By age

Louisville Slugger and DeMarini publish the same "most popular length by age" list, and Rawlings and Easton publish one that matches it at every age but 17 and up (Louisville Slugger, DeMarini, Rawlings, Easton).

Age	Length
5 to 7	24 to 26 in
8 to 9	26 to 28 in
10	28 to 29 in
11 to 12	30 to 31 in
13 to 14	31 to 32 in
15 to 16	32 to 33 in
17 and up	34 in (Rawlings, Easton); 33 to 34 in (Louisville Slugger, DeMarini)

By height and weight

Makers also chart length by height and weight. This is the chart Rawlings and Easton both publish (Rawlings, Easton), which they call "a general guide". Find your player's height across the top and weight down the side.

Bat length in inches, by height (across) and weight (down). A blank cell: the chart gives no length.

Weight	3′0″–3′4″	3′5″–3′9″	3′10″–4′0″	4′1″–4′4″	4′5″–4′8″	4′9″–5′0″	5′1″–5′4″	5′5″–5′8″	5′9″–6′0″	6′1″+
60 lb or less	26	27	28	29	29
61 - 70 lb	27	27	28	29	30	30
71 - 80 lb		28	28	29	30	30	31
81 - 90 lb		28	29	29	30	30	31	32
91 - 100 lb		28	29	30	30	31	31	32
101 - 110 lb		29	29	30	30	31	31	32
111 - 120 lb		29	29	30	30	31	31	32
121 - 130 lb		29	29	30	30	31	32	33	33
131 - 140 lb		29	29	30	31	31	32	33	33
141 - 150 lb			29	30	31	31	32	33	33
151 - 160 lb			29	30	31	31	32	33	33	33
161 - 170 lb				31	31	31	32	33	33	34
171 - 180 lb						32	33	33	34	34
180 + lb							33	33	34	34

Tap your player's height:

3′0″ to 3′4″

Weight	Bat length
60 lb or less	26 in
61 - 70 lb	27 in

3′5″ to 3′9″

Weight	Bat length
60 lb or less	27 in
61 - 70 lb	27 in
71 - 80 lb	28 in
81 - 90 lb	28 in
91 - 100 lb	28 in
101 - 110 lb	29 in
111 - 120 lb	29 in
121 - 130 lb	29 in
131 - 140 lb	29 in

3′10″ to 4′0″

Weight	Bat length
60 lb or less	28 in
61 - 70 lb	28 in
71 - 80 lb	28 in
81 - 90 lb	29 in
91 - 100 lb	29 in
101 - 110 lb	29 in
111 - 120 lb	29 in
121 - 130 lb	29 in
131 - 140 lb	29 in
141 - 150 lb	29 in
151 - 160 lb	29 in

4′1″ to 4′4″

Weight	Bat length
60 lb or less	29 in
61 - 70 lb	29 in
71 - 80 lb	29 in
81 - 90 lb	29 in
91 - 100 lb	30 in
101 - 110 lb	30 in
111 - 120 lb	30 in
121 - 130 lb	30 in
131 - 140 lb	30 in
141 - 150 lb	30 in
151 - 160 lb	30 in
161 - 170 lb	31 in

4′5″ to 4′8″

Weight	Bat length
60 lb or less	29 in
61 - 70 lb	30 in
71 - 80 lb	30 in
81 - 90 lb	30 in
91 - 100 lb	30 in
101 - 110 lb	30 in
111 - 120 lb	30 in
121 - 130 lb	30 in
131 - 140 lb	31 in
141 - 150 lb	31 in
151 - 160 lb	31 in
161 - 170 lb	31 in

4′9″ to 5′0″

Weight	Bat length
61 - 70 lb	30 in
71 - 80 lb	30 in
81 - 90 lb	30 in
91 - 100 lb	31 in
101 - 110 lb	31 in
111 - 120 lb	31 in
121 - 130 lb	31 in
131 - 140 lb	31 in
141 - 150 lb	31 in
151 - 160 lb	31 in
161 - 170 lb	31 in
171 - 180 lb	32 in

5′1″ to 5′4″

Weight	Bat length
71 - 80 lb	31 in
81 - 90 lb	31 in
91 - 100 lb	31 in
101 - 110 lb	31 in
111 - 120 lb	31 in
121 - 130 lb	32 in
131 - 140 lb	32 in
141 - 150 lb	32 in
151 - 160 lb	32 in
161 - 170 lb	32 in
171 - 180 lb	33 in
180 + lb	33 in

5′5″ to 5′8″

Weight	Bat length
81 - 90 lb	32 in
91 - 100 lb	32 in
101 - 110 lb	32 in
111 - 120 lb	32 in
121 - 130 lb	33 in
131 - 140 lb	33 in
141 - 150 lb	33 in
151 - 160 lb	33 in
161 - 170 lb	33 in
171 - 180 lb	33 in
180 + lb	33 in

5′9″ to 6′0″

Weight	Bat length
121 - 130 lb	33 in
131 - 140 lb	33 in
141 - 150 lb	33 in
151 - 160 lb	33 in
161 - 170 lb	33 in
171 - 180 lb	34 in
180 + lb	34 in

6′1″ and up

Weight	Bat length
151 - 160 lb	33 in
161 - 170 lb	34 in
171 - 180 lb	34 in
180 + lb	34 in

Phoenix Bats publishes its own chart (Phoenix Bats). It gives the same length for most players under 5 ft; from 5′1″ up it often gives a length half an inch to an inch shorter.

Two quick checks with the bat in hand

Length: stand the bat on the ground beside the player; "the knob of the bat should reach the center of your palm" (Easton).
Weight: hold the bat straight out in front of the chest with one hand. "If you can't hold the bat out for at least 30 seconds, consider trying a lighter model" (Easton).

The drop: your league decides first

The drop is the bat's weight minus its length: a 30 in, 20 oz bat is a -10. Makers' advice: "Generally, players under 11 will be using a -10 or higher," and "Older players can usually bump up to a -8 or -5" (Easton). Louisville Slugger and DeMarini suggest -11 for 10 and under, -10 for ages 10 to 12, -8 for 12 to 13 and -5 for 13 to 14 (Louisville Slugger, DeMarini).

League rules override all of that. For example, USSSA sets a -8 limit at 13U and makes BBCOR (-3) the national standard at 14U, and high school bats are -3 (BBCOR). Find your league on the bat finder: each page lists the drop limit and the longest bat allowed, and the bats that fit in those sizes.

Checked Oct 27, 2026 against the sources linked above. Rules change: confirm with your league before you buy.