Home Arrow Length Calculator
Arrow Length Calculator
Calculate the correct arrow length for your draw length.
Essential for safety and proper arrow spine selection.
Works for compound, recurve, and traditional bows.
⚠️ Safety first: It's always better to have arrows slightly too long than too short. Short arrows can fall off the rest and cause serious injury.
Example calculation
If your ATA draw length is 28", the calculator gives a 29" planning length. That is a starting point for ordering or selecting an uncut shaft, not an automatic cut line.
Before cutting, draw an extra-long arrow with safe supervision and mark the shaft about 1" forward of the most forward arrow-rest contact. Easton uses this full-draw method because actual safe cut length depends on bow geometry, rest location, point system, and shooting style.
🎯 Ready to order arrows in your calculated length?
Shop carbon arrows at Centerpoint Archery, carbon arrows on Amazon, or traditional arrows at Optics Planet. Need custom length? Some retailers offers an arrow cutting service.
Understanding arrow length
How arrow length is measured
Arrow length is measured from the throat of the nock to the end of the shaft. The point is not included. Easton's current selection material uses this same cut-length convention.
Why the final cut line must be checked at full draw
Draw length and arrow length are related, but they are not interchangeable. Easton notes that optimum arrow length depends on draw length, point style, bow configuration, and shooting style. For many target, field, 3D, and cutout-window hunting setups, Easton recommends using an extra-long arrow at full draw and marking it about 1" forward of the most forward arrow-rest contact.
That physical full-draw check is more reliable than a universal “draw length + X inches” rule. External-component shafts and broadhead setups can require additional clearance.
Arrow length affects dynamic spine
Longer shafts behave dynamically weaker and shorter shafts behave dynamically stiffer. After establishing a safe cut length, re-check your shaft selection with the Arrow Spine Calculator or the current manufacturer chart before cutting a full set.
How to establish arrow length safely
📏 Method 1: Start from a known draw length
Use your measured ATA draw length as a planning input. The calculator adds 1" and rounds upward to the next half inch so you have a conservative starting length to verify physically before cutting.
👐 Method 2: Wingspan estimate
If you do not know your draw length, measure fingertip-to-fingertip wingspan and divide by 2.5. Treat that as an estimate only; verify your bow fit before ordering cut shafts.
🎯 Method 3: ATA pivot-point measurement
At full draw, measure from the bottom of the nock groove to the grip pivot point and add 1.75". That gives ATA-standard draw length, which can then be used as the planning input above.
🏹 Method 4: Final full-draw arrow check
This is the step that determines the actual cut line. Use an extra-long shaft, draw safely with the intended rest and point system, and mark the shaft with the required forward clearance. If you are unsure, have a qualified pro shop do the measurement and cutting.
Arrow length considerations by bow type
Compound bows
Do not assume every compound can use the same draw-length-plus allowance. Rest location, riser geometry, point or outsert system, and the bow's actual full-draw position determine the final safe cut length. Use the calculator for planning, then verify the shaft at full draw before cutting.
Recurve bows (Olympic & barebow)
For recurve, verify the shaft at full draw with the actual rest or plunger position. Easton's tuning guidance notes that beginning recurve archers may deliberately leave an additional 1/2"–1" of shaft while technique and clicker position settle.
Traditional longbows and self bows
Traditional setups vary widely in shelf geometry and point clearance. If a hunting bow does not have a cutout sight window, Easton advises positioning the broadhead at least 1" beyond the far side of the bow. Verify the complete hunting setup physically rather than relying on a fixed formula.
Common arrow length mistakes to avoid
❌ Cutting from a calculator result without a full-draw check
A calculator can provide a planning length, but the final cut line should be verified with the actual bow, rest, and point system at full draw.
❌ Measuring to the point instead of the shaft end
Arrow cut length is measured from the nock throat to the end of the shaft. Do not include the point in the cut-length measurement.
❌ Forgetting that shortening changes dynamic spine
Shortening a shaft makes it behave dynamically stiffer. Re-check spine after choosing the final cut length and before ordering or cutting a full set.
❌ Ignoring external components and broadhead clearance
Outserts, external components, and broadheads may require extra clearance from the rest, riser, or bow. Follow the shaft and component manufacturer's instructions for your exact build.
❌ Cutting every shaft before testing one
When possible, establish and test one finished shaft first. Once length, spine, point clearance, and tune are confirmed, duplicate that specification across the set.
Arrow length calculator FAQs
How do I measure my arrow length?
Measure from the throat of the nock to the end of the shaft, excluding the point. That is the cut-length convention used in Easton selection material.
What happens if my arrows are too short?
An arrow that is too short for the actual bow and rest can lose safe support or create clearance problems at full draw. Do not cut from a generic formula alone; verify the intended shaft on your bow before cutting.
Can I cut arrows shorter after I buy them?
Yes, if the shaft manufacturer allows it and the final length is safe for your setup. Shortening also makes the shaft behave dynamically stiffer, so re-check spine and tune after cutting. Use our arrow spine calculator as a starting point and confirm with the shaft manufacturer.
Do different bow types need different arrow lengths?
Bow type matters, but there is no single fixed allowance that works for every compound, recurve, or longbow. Rest location, riser geometry, point or outsert system, draw length, and shooting style all affect the final safe cut length.
Should I measure draw length to calculate arrow length?
Yes. Draw length is a useful planning input. ATA-standard draw length is the nock-groove-to-grip-pivot distance at full draw plus 1.75 inches. After estimating arrow length, verify the actual cut line with the shaft on the bow at full draw.
What's the minimum arrow length for safety?
There is no universal minimum expressed only as “draw length plus X.” Easton recommends establishing the cut line from the actual bow and rest at full draw, with setup-specific clearance. Follow the arrow and bow manufacturer instructions for your equipment.
Do I need longer arrows for hunting?
Not automatically. Hunting setups can require additional clearance for broadheads, outserts, or bow geometry. For hunting bows without a cutout sight window, Easton advises keeping the broadhead at least 1 inch beyond the far side of the bow.
Can arrow length affect accuracy?
Yes. Arrow length changes shaft mass and dynamic spine, so it can affect tune and grouping. Choose a safe final length first, then select and tune the shaft around that length.