How to Choose the Right Bow and Arrow Size for Adults and Kids | Measure First, Buy Second

Sizing a bow and arrow starts with the shooter’s measured draw length and draw weight, not their age, and arrows must clear the rest by at least an inch at full draw.

For the full breakdown, see our best Wooden Bow and Arrow guide.

Getting the size right comes down to four things: draw length, draw weight, bow type, and arrow clearance. Measure the shooter first, then match equipment to those numbers.

How Do You Measure Draw Length?

Start with wingspan: arms straight out, fingertip to fingertip in inches, divided by 2.5 for a rough draw-length estimate. That’s a starting point only — a coach or pro shop should confirm it with the actual bow and shooting style before you buy, especially for a compound.

Draw length is measured on the bow, not the person. Under the AMO/ATA convention, compound draw length runs from the nock groove to a point 1.75 inches beyond the grip’s pivot point — which is why a quick wingspan calculation and a shop measurement can differ, and why the shop number wins.

Arrow length is separate: from the bottom of the nock groove to the cut end of the shaft, excluding insert and point. Bow draw length and arrow length are related but not the same number.

Choosing A Bow And Arrow Size For Adults

Adult equipment should fit measured draw length exactly, with a draw weight the shooter can draw smoothly, hold briefly, and repeat without strain. For a recurve or traditional bow, one sizing guide lists roughly 68–70 inches of bow for a 28–30-inch draw, though bow geometry and shooting discipline can shift that. A compound needs an adjustable draw-length range that includes the measured value — an incorrect setting hurts form and accuracy.

The most common adult mistake is buying at the maximum weight they can yank back once. Your comfortable starting weight is not that number. Once the specs are settled, a tested wooden bow and arrow roundup can help narrow the product choice.

Arrow spine matters as much as length. Match it to bow draw weight, draw length, arrow length, point weight, bow type, and release method, then run those variables through the shaft manufacturer’s selection chart. Never pick an arrow by shaft length alone.

Fitting A Child: Draw Length And Ability, Not Birthday

Fit a child by measured draw length and physical ability, not age or height. This published youth reference table offers rough starting ranges — a check, not a specification:

Watch the child draw.

Youth arrows should run at least 1 inch longer than draw length, often 1–2 inches to allow for growth. A compound with adjustable draw length and weight, or a takedown recurve with replaceable limbs, keeps pace with a growing kid far better than a fixed youth bow.

The Measurement And Purchase Order That Works

Run the steps in order and most sizing problems disappear. Measure wingspan and divide by 2.5, then confirm draw length with a coach or pro shop using the intended bow and style. Pick a bow whose stated draw-length range includes that confirmed value rather than trusting an age label, and choose a weight the shooter can repeat with controlled form.

Next, mark an uncut arrow at full draw, check the mark over several draws, and add a safety margin before cutting. At full draw the arrow should extend at least 1 inch past the arrow rest, with the exact safe length depending on bow, rest position, style, and point. Then select shaft spine through the manufacturer’s chart with every variable entered, and have a pro shop cut the arrows and install inserts when possible.

The most common error is confusing bow draw length with arrow length and cutting short as a result. A 28-inch draw does not automatically call for a 28-inch arrow; the manufacturer’s arrow guide plus a qualified shop should make the final call. Victory Archery’s youth arrow guide is a useful reference for younger shooters.