Enter the draw length and draw weight into the calculator to determine the appropriate bow size for an archer. The bow size is crucial for comfort and performance while shooting.

Bow Size Formula

The following formula is used to calculate the bow size.

BS = DL + 2

Variables:

  • BS is the bow size (inches)
  • DL is the draw length (inches)
  • The formula adds 2 inches to the draw length to account for the optimal bow size for most archers.

To calculate the bow size, add 2 inches to the draw length. This is a simplified formula and may vary depending on the type of bow and the archer’s specific needs.

What is Bow Size?

Bow size refers to the overall length of the bow from tip to tip when strung. It is an important factor in archery as it affects the bow’s performance, the archer’s comfort, and the efficiency of the shooting process. The right bow size can help prevent injuries and improve accuracy.

How to Calculate Bow Size?

The following steps outline how to calculate the Bow Size.


  1. First, determine the draw length (DL) in inches.
  2. Next, use the formula BS = DL + 2 to calculate the bow size (BS) in inches.
  3. Finally, use the calculator above to verify your calculation.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Draw Length (DL) = 28 inches

Draw Weight = 50 pounds (Note: Draw weight is not used in the calculation but is provided for context)