Bat Sizing

Bat Chart*

Success at the plate often comes down to this: making consistent hard contact against live pitching. To do this, it’s important to swing the right bat for you. That means a bat that’s long enough to cover the strike zone, light enough to swing with ease, heavy enough to generate power, and, of course, permitted in your league. In order to find the ideal size for you, consider the following guidelines:

3'-3'4" 91.44cm‑101.6cm 3'5"-3'8" 104.14cm‑111.76cm 3'9"-4' 114.3cm‑121.92cm 4'1"-4'4" 124.46cm‑132.08cm 4'5"-4'8" 134.62cm‑142.24cm 4'9"-5' 144.78cm‑152.4cm 5'1"-5'4" 154.94cm‑162.56cm 5'5"-5'8" 165.1cm‑162.56cm 5'9"-6' 175.26cm‑182.88cm 6'1"-Over 185.42cm‑Over
Under 60 Lbs. Under 27.22 Kg.26" 66.04cm27" 68.58cm28" 71.12cm29" 73.66cm29" 73.66cm     
61 - 70 27.67kg-31.75kg27" 68.58cm27" 68.58cm28" 71.12cm29" 73.66cm30" 76.2cm30" 76.2cm    
71 - 80 32.21kg-36.29kg 28" 71.12cm28" 71.12cm29" 73.66cm30" 76.2cm30" 76.2cm31" 78.74cm   
81 - 90 36.74kg-40.82kg 28" 71.12cm29" 73.66cm29" 73.66cm30" 76.2cm30" 76.2cm31" 78.74cm32" 81.28  
91 - 100 41.28kg-45.36kg 28" 71.12cm29" 73.66cm30" 76.2cm30" 76.2cm31" 78.74cm31" 78.74cm32" 81.28cm  
101 - 110 45.81kg-49.90kg 29" 73.66cm29" 73.66cm30" 76.2cm30" 76.2cm31" 78.74cm31" 78.74cm32" 81.28cm  
111 - 120 50.35kg-54.43kg 29" 73.66cm29" 73.66cm30" 76.2cm30" 76.2cm31" 78.74cm31" 78.74cm32" 81.28cm  
121 - 130 54.88kg-59.00kg 29" 73.66cm30" 76.2cm30" 76.2cm30" 76.2cm31" 78.74cm32" 81.28cm33" 83.82cm33" 83.82cm 
131 - 140 59.42kg-63.50kg 29" 73.66cm30" 76.2cm30" 76.2cm31" 78.74cm31" 78.74cm32" 81.28cm33" 83.82cm33" 83.82cm 
141 - 150 63.96kg-68.04kg  30" 76.2cm30" 76.2cm31" 78.74cm31" 78.74cm32" 81.28cm33" 83.82cm33" 83.82cm 
151 - 160 68.49kg-72.57kg  30" 76.2cm31" 78.74cm31" 78.74cm32" 81.28cm32" 81.28cm33" 83.82cm33" 83.82cm33" 83.82cm
161 - 170 73.03kg-77.11kg   31" 78.74cm31" 78.74cm32" 81.28cm32" 81.28cm33" 83.82cm33" 83.82cm34" 86.36cm
171 - 180 77.56kg-81.65kg     32" 81.28cm33" 83.82cm33" 83.82cm34" 86.36cm34" 86.36cm
Over 180 Over 81,65kg      33" 83.82cm33" 83.82cm34" 86.36cm34" 86.36cm
AGE5 - 78 - 91011 - 1213 - 1415 - 16
LENGTH24" - 26" 60.96cm‑66.04cm26" - 28" 66.04cm‑71.12cm28" - 29" 71.12cm‑73.66cm30" - 31" 76.2cm‑78.74cm31" - 32" 78.74cm‑81.28cm32" - 33" 81.28cm‑83.82cm


Bat length is measured in inches from knob to end cap. A longer bat gives you greater reach, allowing you to hit balls on the outside part of the plate. However, longer bats also tend to have more mass towards the end of the bat that requires more power to swing them. We recommend swinging bats of different lengths to decide what option best suits your swing. The right combination of length and weight will help you reach your peak performance.

Many players mistakenly believe a longer bat means more plate coverage, but this is not always true. Since a longer bat often means a heavier feeling bat, a bat that is too long for you can slow down your timing and prevent you from catching up to and hitting inside pitches. When choosing your bat length, you should keep plate coverage in mind. You should also consider your swing and stance relative to the plate.

Fastpitch bats also have a wide variety of lengths, ranging from 28 to 34 inches.


Bat weight is measured in ounces (oz.). A bat’s weight is often tied to its “weight drop” -- its length in inches versus its weight in ounces. For instance, a 32-inch, 22-ounce bat would be referred to as a -10 bat.

bat length (in.) – bat weight (oz.) = weight drop

As a general rule of thumb, the higher the competition or league level (meaning, from youth league up to the pros) the lesser the weight drop. A lesser weight drop means the bat feels heavier. So a -5 bat will feel heavier than a -10 bat.

Selecting the right bat weight depends on three main factors: sport, league rules, and player preference.

  • Leagues have rules identifying which weight drops are permitted for play. Prior to choosing a bat, we recommend finding out if your league has a specific standard for bat weight drops in order for them to be permitted. For more information on league rules, please refer to the Leagues section.

  • Players with less experience generally swing lighter bats in order to have better bat control. More experienced players generally swing a heavier bats to help maximize power. A way to tell if a bat is right for you is your swing speed. A bat that is too heavy is harder to swing, causing a loss in momentum, reduced distance or a miss altogether. If a bat is too light for a player, the player could miss out on the extra force they could generate from a heavier bat. A happy medium needs to be found. It is highly recommended you demo a bat against live pitching speeds in order to find the best weight for you.

Fastpitch bats typically have a weight drop ranging from -8 to -13. Younger players often use a lighter bat (larger weight drop) and, as they increase their skill level, they often progress to a heavier bat (smaller weight drop).

Shop By Weight Drop

*This is a recommendation. The best way to find the right size bat for you is to demo them, preferably against live pitch speeds.

**Manufacturing tolerances, performance considerations and grip weight may cause variations from the listed weight.


Governing Bodies

Governing bodies (for example, the USSSA) set unique standards for bat performance. Bat manufacturers make bats to meet these standards. Each standard, however, is different. So, bats meeting one standard may not meet another. Bats are marked with logos identifying the standard which they meet.

Leagues adopt the standards they deem appropriate for play under their particular rules. League adoptions vary region by region, so we highly recommend consulting your coach and/or league official to understand the standard adopted by your league prior to purchasing a new bat.

The following information will help you understand in the standard adopted by your league:

There are five major governing bodies for fastpitch softball. They are Amateur Softball Association (ASA), United States Specialty Sports Association (USSSA), Independent Softball Association (ISA), National Softball Association (NSA), and International Softball Federation (ISF).

These logos can be found on bats, and certify that the bat is legal for certain leagues and tournaments. Please check with your coach/league for details on what bats are approved.

ASA Softball logo
Approved for ISA logo
ISF 2005 Certified logo
NSA Official Softball logo
Senior Softball USA logo
USSSA logo

Bat Technology

A bat is a carefully-engineered tool that allows players to get the most out of every swing. Every component of the bat, from the knob to the end cap, is designed to maximize every ounce of performance. There are four main technical components you need to know for your bat: Material, Barrel Diameter, Construction and Weight Balance.


One of the biggest influences on bat performance is its material. Traditionally in Fastpitch, bats are made from composite or alloy materials. Please read below to learn more about bat materials and how they affect performance.

Composite Vs. Alloy

Non-wood bats are built from either alloy, composite, or a combination of the two.

Composite bat cross section

Composite bats are made with a layered material (often carbon fiber) that is easy to distribute, giving us the ability to make bats with a variety of swing weights, from balanced to end-loaded.

Pros of Composite:

  • Minimize the sting from a mis-hit ball by reducing vibration to the hands

  • Often have a larger sweet spot than alloy bats

Shop Composite Bats

Alloy bat cross section

Alloy is a mixture of two or more metals, and has been commonly used in fastpitch bats for years.

Pros of Alloy:

  • Stiffer feel through the swing zone

  • More durable material

Shop Alloy Bats


One-piece bats are one complete piece of composite or alloy and are often used by power hitters, since they provide less flex on contact.

Multi-piece bats are comprised of two separate parts: the barrel and the handle. The handle is connected to the barrel through a transition piece in the taper area of the bat. Multi-piece construction helps minimize vibration on mis-hit balls. Those bats are preferred by contact hitters, since the two-part construction helps generate maximum swing speed without the fear of major sting on contact.

Barrel Diameter

The barrel is the thickest and widest part of the bat used to hit the ball. The barrel is where you want to hit the ball in order to achieve maximum performance.

Barrels come in different sizes, and are measured by diameter. Barrel diameter is measured in inches and, like weight drop, certain leagues limit the size of a bat’s barrel. Please refer to the Leagues section on what your league requires. Generally, Fastpitch bats are 2 14 inches.

Swing Weight

A factor you may not see, but will definitely feel is the swing weight* of your bat. Bats are often segmented by their given length and weight. The Swing weight is a determination of how a bat’s particular weight is distributed along the bat’s length. For example, you can have two bats that are 30 ounces, but that have different swing weights because the 30 ounces are distributed differently in the bat. Bats can fall along the swing weight spectrum, from light to balanced to end-loaded.

End-loaded bats shift extra weight toward the end of the barrel, creating more whip-like action on a player’s swing and generating more power.

Balanced bats have a more even weight distribution, allowing for potentially greater swing speed for many hitters. This is preferred by contact hitters who want more control of their swing.

*Note - there are a variety of swing weights offered to meet player needs.