Recurve Bow Size Calculator

Your expert tool for determining the correct recurve bow length for optimal performance and comfort.

Visual Guide: Draw Length vs. Bow Length

Draw Length (inches)	Recommended Bow Length (inches)	Common Use Case
23″ – 25″	64″ – 66″	Youth or Smaller Frame Archers
25″ – 27″	66″ – 68″	Average Adult, Target Archery
28″ – 30″	68″ – 70″	Taller Adults, Olympic Style
30″+	70″ – 72″	Very Tall Archers, Long Draw

This recurve bow size chart provides a quick reference for matching your draw length to a bow size.

What is a Recurve Bow Size Calculator?

A recurve bow size calculator is a specialized tool designed to help archers select the appropriate length for their recurve bow. Unlike a one-size-fits-all product, the correct bow size is crucial for accuracy, comfort, and developing proper form. Using an incorrect bow size can lead to “stacking” (a rapid increase in draw weight) if the bow is too short, or a loss of power and forgiveness if it’s too long. This professional recurve bow size calculator simplifies the process by using your personal measurements to recommend an optimal bow length based on industry standards.

This tool is essential for anyone from beginners to seasoned archers. Newcomers often struggle with the technical aspects of gear selection, and a reliable recurve bow size calculator removes the guesswork. Experienced archers can use it to confirm their setup or explore different configurations, such as moving between different riser and limb lengths for a custom feel. One common misconception is that an archer’s height is the primary factor. While related, the most critical measurement is draw length, which our calculator accurately estimates using your arm span.

Recurve Bow Size Formula and Mathematical Explanation

The core of any recurve bow size calculator is determining the archer’s draw length. The most reliable and widely accepted method is the “wingspan” or “arm span” method. The formula is simple yet effective:

Estimated Draw Length (in) = Total Arm Span (in) / 2.5

Here’s a step-by-step breakdown:

1. Measure Arm Span: Stand with your arms extended straight out to your sides, parallel to the floor. Have someone measure the distance from the tip of one middle finger to the tip of the other. This measurement is your arm span.
2. Calculate Draw Length: Divide your arm span in inches by 2.5. This constant is an empirically derived value that provides a highly accurate estimate of your true draw length at full draw. For more on this, see our guide on archery draw length.
3. Determine Bow Length: Once you have your draw length, you can use a standard chart to find the corresponding recommended bow length. A longer draw length requires a longer bow to prevent stacking and maintain a smooth draw cycle. Our recurve bow size calculator automates this final step for you.

Variables Table

Variable	Meaning	Unit	Typical Range
Arm Span	Total width from fingertip to fingertip	inches	60″ – 80″
Draw Length (DL)	The distance from the nocking point to the grip at full draw	inches	24″ – 32″
Bow Length (AMO)	The Archery Manufacturers Organization standard length of the bow	inches	62″ – 72″

Practical Examples (Real-World Use Cases)

Example 1: Average Height Archer

• Input (Arm Span): 69 inches
• Calculation: 69″ / 2.5 = 27.6″ Draw Length
• Calculator Output (Recommended Bow Length): 68″ – 70″
• Interpretation: An archer with a 27.6-inch draw length falls squarely into the most common range for adults. A 68-inch bow would be a perfect starting point, offering a great balance of stability and power. This size is ideal for target archery and is a popular choice in Olympic recurve setups. The recurve bow size calculator confirms this is a standard and safe choice.

Example 2: Taller Archer

• Input (Arm Span): 77 inches
• Calculation: 77″ / 2.5 = 30.8″ Draw Length
• Calculator Output (Recommended Bow Length): 70″ – 72″
• Interpretation: With a draw length over 30 inches, this archer requires a longer bow to avoid discomfort and mechanical issues. A 70-inch bow would be good, but a 72-inch bow (often a 27″ riser with long limbs) would provide the smoothest and most forgiving shot. Using a bow shorter than recommended by the recurve bow size calculator would likely result in severe stacking and poor accuracy. When looking into a beginner archery setup, getting the size right is paramount.

How to Use This Recurve Bow Size Calculator

Using our recurve bow size calculator is a straightforward process designed for accuracy and ease of use.

1. Enter Your Arm Span: Input your arm span measurement in inches into the designated field. For the most precise result, have a friend help you measure.
2. View Real-Time Results: The calculator instantly updates. The primary result shows your recommended bow length range (e.g., 68″ – 70″).
3. Analyze Intermediate Values: Check your estimated draw length. This number is the foundation of the calculation and is a valuable piece of information for other aspects of archery, like selecting the right arrows. Consider learning more about how to measure for a recurve bow.
4. Consult the Chart and Table: Use the dynamic chart and reference table to visually understand where your measurements fall and how they relate to standard bow sizes.
5. Decision-Making: If your recommended range is 66″-68″, a 66″ bow might feel more aggressive and faster, while a 68″ bow will feel smoother and more forgiving. For beginners, the longer end of the recommendation from the recurve bow size calculator is often the better choice.

Key Factors That Affect Recurve Bow Size Results

While our recurve bow size calculator provides an excellent recommendation, several factors can influence your final choice.

• 1. Draw Length: This is the single most important factor. An accurate draw length measurement is critical. A longer draw necessitates a longer bow.
• 2. Archery Style: Target archers often prefer longer, more stable bows (68″-72″). Bowhunters or field archers might opt for a slightly shorter, more maneuverable bow (60″-64″), even if the recurve bow size calculator suggests a longer size. See our article on recurve bow for hunting for more on this topic.
• 3. Riser and Limb Combination: Modern takedown recurve bows allow you to mix and match riser and limb lengths. A 25″ riser with medium limbs creates a 68″ bow, while the same riser with long limbs creates a 70″ bow. This modularity lets you fine-tune your setup.
• 4. Finger Angle (String Pinch): With a shorter bow, the angle of the string at full draw is more acute. This can cause “string pinch,” where your fingers are squeezed together on the string, leading to an inconsistent release. A longer bow provides a more comfortable, forgiving string angle.
• 5. Stacking: This refers to the phenomenon where the draw weight increases exponentially in the last few inches of the draw cycle. It occurs when a bow’s limbs are drawn past their optimal range. Using a bow that is too short for your draw length is the primary cause of stacking. Our recurve bow size calculator helps you avoid this.
• 6. Personal Preference and Comfort: Ultimately, the right bow is one that feels good to you. Some archers prefer the aggressive feel of a shorter bow, while others value the smooth stability of a longer one. It’s wise to try different sizes at a local pro shop if possible.

Frequently Asked Questions (FAQ)

1. What happens if my recurve bow is too short?

A bow that is too short for your draw length will “stack,” meaning it will become excessively difficult to pull in the final inches of the draw. This leads to poor form, inaccuracy, and discomfort. You may also experience significant string pinch.

2. What happens if my recurve bow is too long?

A bow that is too long may feel less powerful and slightly sluggish. While more forgiving and smoother to draw, it might not transfer energy to the arrow as efficiently as a correctly sized bow. However, for a beginner, too long is generally a safer mistake than too short.

3. Does my height matter when using a recurve bow size calculator?

Indirectly. A taller person usually has a longer arm span, which leads to a longer draw length. However, the direct measurement for the recurve bow size calculator should always be arm span, not height, as people’s proportions vary.

4. Is the AMO length the same as the actual length?

AMO (Archery Manufacturers Organization) length is a standardized measurement taken along the limbs of an unstrung bow. It’s the industry standard for bow length, but it’s not the same as measuring a strung bow from tip to tip in a straight line.

5. Can I use this calculator for longbows or compound bows?

No. This recurve bow size calculator is specifically calibrated for recurve bows. Longbows have different length recommendations, and compound bows have adjustable draw lengths that are set mechanically, making this calculation irrelevant for them.

6. How does riser length affect the total bow length?

Total bow length is a combination of riser length and limb length. The most common riser size is 25 inches. Paired with short, medium, or long limbs, it typically creates a 66″, 68″, or 70″ bow, respectively. A different riser size will change the final AMO length.

7. Should I choose the shorter or longer end of my recommended range?

For beginners, the longer end of the range is almost always better. A longer bow is more stable, more forgiving of mistakes, and smoother to draw. Competitive archers may sometimes choose a shorter bow for a slight increase in arrow speed, but this is an advanced tuning decision.

8. How often should I re-check my bow size?

For adults, your arm span and draw length are unlikely to change. You only need to use a recurve bow size calculator when you are first purchasing equipment or considering a new setup. For youth archers who are still growing, it’s a good idea to re-measure every 6-12 months.

Related Tools and Internal Resources

Expand your archery knowledge with our other specialized tools and guides:

• Archery for Beginners: A complete guide to getting started in the sport, from safety to your first shots. This guide explains concepts like archery draw length in more detail.
• Arrow Speed Calculator: Estimate how fast your arrows will fly based on your bow’s IBO rating, draw weight, and arrow weight.
• How to Choose the Right Arrows: Learn about arrow spine, length, and material to perfectly match your bow setup.
• Bow String Maintenance Guide: Proper care is essential for performance and safety. Learn how to wax and serve your bow string.
• Best Recurve Bows of 2026: Our comprehensive review of the top bows on the market for every budget.
• Understanding Arrow F.O.C.: Dive deep into the physics of arrow flight with our guide to Front of Center balance.