A free point-mass trajectory calculator. Choose G1 or G7, enter your bullet and atmospheric conditions by hand, and get drop, wind drift, velocity, energy, and time of flight out to your max range.
See the Advanced Ballistics Calculator to add custom ballistic trueing, spin drift, and Coriolis effect.
Free Ballistics Calculator
Free point-mass trajectory calculator. Pick G1 or G7, enter your bullet and conditions by hand, and get drop, wind drift, velocity, energy, and time of flight. No sign-in required.
Inputs
Loading library…
Want spin drift, Coriolis correction for extreme range, the full bullet library, and the ability to save and reload your calculations from any device? Try the Advanced Ballistics Calculator.
Summary
Trajectory Graph
Range Card
| Range | Vel | Energy | ToF | Drop | Elev MIL | Elev MOA | Wind MIL | Wind MOA |
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DOPE Card Generator
Run the calculator above first, then generate a field-ready card you can save to your phone or print for the range book.
Flight Trajectory
Side view shows drop in inches with elevation hold overlaid. Top-down view shows wind hold in MIL. Press Calculate above first, then Fire.
■ SIDE VIEW · DROP (INCHES)Stay in the Loop
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How This Calculator Works
This is a single-BC point-mass trajectory calculator: enter your bullet's published ballistic coefficient and basic chronograph and atmosphere data, and it steps the flight forward to compute drop, wind drift, velocity, energy, and time of flight at each range step. It does not account for spin drift or the Coriolis effect, both of which become meaningful at long range, and it doesn't pull bullet dimensions from a library, so weight and BC are entered manually.
Choosing G1 vs G7
Use whichever drag model matches how your bullet's published BC was measured, check the manufacturer's data sheet. G7 is the better physical match for modern boat-tail match bullets. G1 is still the most common BC published for factory ammunition. Mixing them will give significantly wrong answers.
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Bullet Stability Calculator
Confirm your twist rate is right before running a trajectory solution, an unstable bullet won't fly the BC you entered.
MOA to MIL Converter
Translate your calculated elevation and wind corrections into scope adjustments in your preferred unit.
Recoil Calculator
Same muzzle velocity, different question, see how much this load kicks in your rifle.