Enter your pellet's ballistic coefficient, muzzle velocity, and weight, then a list of distances. The calculator runs the same real trajectory simulation as our BC Calculator, in the forward direction this time, to predict velocity, energy, and percent of muzzle velocity retained at each distance. If you don't already know your pellet's BC, calculate it first.
This calculator shares the exact same drag table and trajectory engine as our BC Calculator, real point-mass integration against the standard G1 model, not a shortcut formula. Instead of solving backward from measured velocities to find BC, it runs forward: given a known BC and muzzle velocity, it simulates the pellet's flight and reports velocity, energy, and percent retained at each distance you ask for.
This calculator is free to embed anywhere, including WordPress, no plugin required. Paste the code below into a Custom HTML block (or anywhere in your page's HTML):
<iframe src="https://airgunguide.com/embed/airgun-retained-velocity-calculator.html" width="100%" height="900" style="max-width:420px;" title="Airgun Retained Velocity Calculator"></iframe>
<script src="https://airgunguide.com/js/embed-listener.js"></script>The script after the iframe lets the calculator resize itself automatically, so it never shows an internal scrollbar. If you embed more than one AirgunGuide calculator on the same page, it's fine to paste this exact block for each one, no changes needed. In WordPress specifically: add a Custom HTML block to your page, paste the code above into it, and publish. That's it, no account, no API key, and no plugin needed.