Broadhead Weight Calculator
Estimate total arrow weight, FOC balance, and momentum before you finalize your hunting setup.
🏹Setup Presets
📏Arrow Build Inputs
⚙Component Spec Grid
📊Reference Tables
| Broadhead Weight | Use Case | FOC Shift | Typical Total Arrow |
|---|---|---|---|
| 75 gr | 3D, high speed bows | Very low | 300–380 gr |
| 100 gr | General deer setup | Moderate | 380–460 gr |
| 125 gr | Mixed big game | Moderate-high | 430–540 gr |
| 150 gr+ | Heavy bone penetration | High | 500–700 gr |
| Grains Per Pound (gpp) | Speed Trend | Noise/Vibration | Best Fit |
|---|---|---|---|
| 4.5–5.5 gpp | Fastest | Higher | 3D and practice |
| 5.5–6.5 gpp | Fast | Moderate | Whitetail hunting |
| 6.5–8.0 gpp | Balanced | Lower | All-around big game |
| 8.0+ gpp | Slowest | Lowest | Heavy penetration |
| FOC Range | Stability | Trajectory | Common Build |
|---|---|---|---|
| 7–10% | Usable | Flatter | Light front setups |
| 10–13% | Very stable | Balanced | Most hunting arrows |
| 13–16% | High stability | Slight arc | Insert + 125 gr head |
| 16–20% | Max front bias | More arc | High FOC tuning |
| Preset Project | Draw Weight | Broadhead | Typical Outcome |
|---|---|---|---|
| Whitetail compact | 60 lb | 100 gr | ~420 gr total |
| Western elk setup | 70 lb | 125 gr | ~500 gr total |
| Boar penetration | 68 lb | 125 gr | ~530 gr total |
| Traditional heavy | 55 lb | 145 gr | ~580 gr total |
Choosing the right weight of broadhead, you care about good arrow flight. Heavier arrows require more time to reach the mark B. At draw force under 55 pounds, you commonly best operate broadhead of 100 grains, because it gives bigger arrow haste. Also you commonly chooses 100-grain broadheads, because they most easily get, when you requires several.
You uses them chiefly with 5 mm, 6 mm and 6.5 mm arrows.
Pick the Right Broadhead Weight for Good Arrow Flight
Add weight before the arrow help lot. More mass before improves the FOC, so the front center. Change to 125- or 150-grain heads strengthen weight and FOC, what can help penetrate more well.
But new weight alters the arrow spine and point of impact. That requires to set the sight. Heavier broadhead can conceal, that arrows attain a bit more below in long distances.
In 30 yards or more closely it does not matter a lot, but long it shows.
At mechanical broadheads part of the kinetic energy uses for open the blades during impact. Without sufficient impulse the arrow does not penetrate well. For crossbow users answer 150-grain broadheads, while 125-grain one uses at compound bows.
Some lays 100-grain field tips or weights when they design crossbow arrows for good flight.
Superbly value to benchmark various weights. Prove with 100- and 125-grain heads show, as arrows fly. From compounds and crossbows shoot heavy arrows are very liked.
Easily and cheerfully you spermentas by means of different weights using various target points. Too heavy head can weaken the spine. Clearly you first counts by means of spine chart or program.
Paper test shooting confirm, that the flight stays good.
One mixes bits for reach wanted weight. 50-grain insert goes with 100-grain heads. 25-grain footer adds mass and set the insert, so that it do not bundle in the tube.
At recurve bows heavier arrow always helps, if it flies well. Some intends entirely 500 grains or more from arrow, insert and broadhead. 100-grain broadhead with extra weight before is other mode control the mass.

