Antimatter Explosion Calculator

    Estimate the destructive power of an antimatter detonation — yield, fireball, thermal radiation, and overpressure blast radii.

    Antimatter Charge

    Blast radii use Hopkinson-Cranz scaling and standard nuclear weapon effect curves applied to the equivalent yield. Real explosions vary with altitude, terrain, and confinement.

    TNT Yield
    42.96 kt
    Megatons
    0.043 Mt

    Blast Radii

    Fireball radius80 m
    Severe blast (5 psi — buildings destroyed)771 m
    Light damage (1 psi — windows shatter)2.17 km
    3rd-degree burn radius3.30 km
    Severe blast area1.9 km²

    How It Works

    Each gram of antimatter reacting with a gram of matter releases ~1.8×10¹⁴ J — equivalent to about 43 kt of TNT. The blast radii in this calculator use scaling laws derived from atmospheric nuclear test data:

    • 5 psi radius (km) ≈ 2.2 · YMt1/3
    • 1 psi radius (km) ≈ 6.2 · YMt1/3
    • Fireball radius (km) ≈ 0.28 · YMt0.4
    • Thermal radiation (3rd-degree burns, km) ≈ 12 · YMt0.41

    For educational and curiosity purposes only. Antimatter cannot currently be produced or stored at weapon-relevant quantities — global production is measured in nanograms.

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