10/06/2026
How to use the Altra Arrows Performance Calculator in 60 seconds. 🏹
Here's exactly how to plug in your setup and see your real arrow performance numbers: 👇
✅ Step 1: Enter your bow specs
Drop in your bow weight, IBO speed at 30", and draw length. → These three numbers are the foundation of your performance curve.
✅ Step 2: Enter your finished arrow weight
Plug in the full weight of your build — shaft, point, vanes, insert, nock, all of it. → This is where the calculator anchors your real-world setup.
✅ Step 3: Set your target distance
Choose the yardage you actually shoot. → The calculator returns your time to target and ±3-yard miss window for that exact distance.
✅ Step 4 (optional): Add your chrono speed
If your bow has been across a chronograph, drop in your measured arrow speed. → The entire performance curve recalibrates around your real-world data for maximum accuracy.
That's it. Arrow speed, kinetic energy, momentum, time to target, ±3-yard miss window, and the full performance curve from 350 to 900 grains — all in one place. Free to use. 🏹
Run your build by clicking the link in our bio! 📲