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Bulk Arrow Speed Calculator
Velocity, KE & Momentum

Compute arrow speed from IBO rating, draw weight/length, or mass & kinetic energy. Upload TXT/CSV for bulk processing. Perfect for archers & bowhunters.

🏹 Launch Calculator ↓
6Output Metrics
IBO & StandardMultiple Methods
100%Private & Free
CSV/TXTBulk Upload
Features

Professional Arrow Speed Analysis

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IBO Speed Method

Calculate arrow speed using IBO (International Bowhunting Organization) standard rating with draw weight and length adjustments.

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Kinetic Energy Mode

Compute arrow velocity from known mass and kinetic energy values — perfect for chronograph data validation.

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Bulk CSV/TXT Upload

Upload files with multiple arrow configurations. Process dozens of setups instantly, entirely in your browser.

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Dual Unit Output

All results shown in m/s and fps simultaneously. Kinetic energy in Joules and foot-pounds for easy comparison.

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Real-Time Validation

Live input validation catches zero, negative, or out-of-range values before calculation.

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Export Results

Copy to clipboard or download CSV with all inputs and computed values — velocity, KE, momentum.

How It Works

Three Simple Steps to Arrow Speed Results

1

Choose Calculation Mode

Select IBO method (draw weight/length), KE method (mass & energy), or velocity method (mass & speed).

2

Enter Arrow & Bow Data

Input arrow weight (grains), IBO rating, draw weight/length, or KE value. Real-time validation guides you.

3

Get & Export Results

Click Compute to see velocity in m/s & fps, kinetic energy in J & ft-lb, momentum, and power classification.

ARROW SPEED FROM IBO RATING

v = IBO_speed × √(350 / arrow_gr) × (DW/70) × (DL/30)

350 = standard IBO arrow weight (grains) · DW = draw weight (lb) · DL = draw length (inches)

Calculator

Arrow Speed Calculator — IBO, KE & Velocity Modes

🎯 Single Calculation

All calculations run locally in your browser — no data sent to any server.

⚡ Bulk Calculations

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Drag & Drop or click to upload

.csv or .txt · max 5 MB

Format: arrow_grains,ibo_speed,draw_weight,draw_length → velocity from IBO
Or arrow_grains,ke_joules → velocity from KE
Or arrow_grains,velocity_mps,1 → compute KE & momentum

📊 Arrow Speed Results

#Arrow (grains)Velocity (m/s)Velocity (fps)KE (J)KE (ft-lb)Momentum (kg·m/s)Power Class
⚠️ Disclaimer: This Arrow Speed Calculator is for educational, scientific, and informational purposes only. Results are estimates based on simplified physics models. Bow and arrow brand names are trademarks of their respective owners. SeoWebChecker is not affiliated with any archery brand. Always follow safety regulations and manufacturer guidelines.

Arrow Speed Calculator: Comprehensive Guide for Archers & Bowhunters

Arrow speed is one of the most critical performance metrics in archery and bowhunting. It directly affects trajectory flatness, kinetic energy on impact, and the effective hunting range. Whether you're a competitive target archer, bowhunter, or bow technician, understanding and accurately calculating arrow speed is essential for equipment optimization and shot placement confidence.

What Is Arrow Speed and Why Does It Matter?

Arrow speed refers to the velocity of an arrow as it leaves the bowstring at full draw. Faster arrows fly flatter, reducing the need for holdover at longer distances, and improve wind resistance. However, speed must be balanced with sufficient arrow mass to ensure adequate kinetic energy for ethical hunting. This calculator helps you find that optimal balance.

Arrow Speed Formulas

IBO Speed Methodv_fps = IBO_speed × √(350 / arrow_gr) × (DW/70) × (DL/30)
IBO standard: 70 lb draw weight, 30" draw length, 350-grain arrow
From Kinetic Energyv = √(2 × KE / m)
v in m/s, KE in Joules, m in kg (arrow grains ÷ 15432.36)
Kinetic Energy from VelocityKE = ½ × m × v², Momentum p = m × v

Worked Examples

Example 1 — Hunting Compound BowArrow: 420 grains, IBO: 320 fps, Draw weight: 65 lb, Draw length: 28"
v = 320 × √(350/420) × (65/70) × (28/30) = 320 × 0.913 × 0.9286 × 0.9333 = 253.5 fps (77.3 m/s)
KE = ½ × (0.0272 kg) × (77.3²) = 81.2 J (59.9 ft-lb)
Example 2 — Target RecurveArrow: 350 grains, Measured KE: 65 J
Mass in kg = 350 / 15432.36 = 0.02268 kg
v = √(2 × 65 / 0.02268) = √(5731) = 75.7 m/s = 248.4 fps

Factors Affecting Arrow Speed

Draw weight has the most significant impact — increasing draw weight by 10 lbs typically adds 15-25 fps. Draw length affects speed proportionally; each additional inch adds approximately 10 fps. Arrow weight follows an inverse square root relationship; heavier arrows are slower but quieter and more forgiving. Understanding these trade-offs helps you build the perfect arrow setup.

FAQ

Frequently Asked Questions

IBO (International Bowhunting Organization) speed rating uses 70 lb draw weight, 30-inch draw length, and a 350-grain arrow (5 grains per pound). This standard allows consistent comparison across bow models.

The IBO formula provides a good estimate (±5-10 fps) for modern compound bows. Actual speed varies with cam design, string material, friction, and other variables. Use this as a starting point for arrow selection.

Most bowhunters use arrows between 400-500 grains total weight (broadhead included). Minimum recommended kinetic energy for whitetail deer is 40 ft-lb; for larger game like elk, 65+ ft-lb is recommended.

Each inch of draw length typically adds or subtracts 8-12 fps. A 28-inch draw length bow will be significantly slower than the same bow set at 30 inches, all else equal.

Yes. Prepare a .csv or .txt file with one row per arrow configuration using the specified formats. All processing happens locally in your browser — completely private.

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