Home
Back
Hunting Arrow Weight Formula:
| From: | To: |
The total weight of a hunting arrow is calculated by multiplying the arrow's grains per inch (GPI) by its length and adding the weight of additional components (points, inserts, fletchings, etc.). Proper arrow weight is crucial for penetration and ethical hunting.
The calculator uses the arrow weight formula:
Where:
Explanation: The equation accounts for both the shaft weight (GPI × length) and the weight of all other components.
Details: Proper arrow weight affects penetration, trajectory, and kinetic energy. Most states require minimum arrow weights for big game hunting (typically 300-400 grains minimum).
Tips: Enter the GPI value from your arrow specifications, measure your arrow length from throat of nock to end of shaft (not including point), and include all additional component weights.
Q1: What is a good arrow weight for hunting?
A: For most big game, 400-450 grains is ideal. Lighter arrows (350-400 grains) are better for long-range shooting, while heavier arrows (450+ grains) provide better penetration.
Q2: How does arrow weight affect performance?
A: Heavier arrows penetrate better but have more arc. Lighter arrows fly flatter but may lack penetration. Find the right balance for your setup and game.
Q3: Should I include broadhead weight?
A: Yes, the broadhead weight should be included in the "additional components" weight along with inserts, nocks, fletchings, etc.
Q4: What's typical GPI for hunting arrows?
A: Most hunting arrows range from 8-12 GPI. Carbon arrows tend to be lighter (8-10 GPI) while aluminum and hybrid arrows are heavier (10-12 GPI).
Q5: How do I measure my arrow length?
A: Measure from the throat of the nock (where the string sits) to the end of the shaft, not including the point or insert.