Blast Radius Calculator

Estimate the blast radius for a given explosive yield.

Approximate radius 66

Formula: Cube-root scaling: R ≈ Z·W^(1/3)

Step-by-step with your numbers:

1. Values used:

2. Explosive yield = 1,000 kg TNT

3. Target overpressure = 35 kPa

5. Approximate radius = 66

Did we solve your problem today?

Blast effects scale with the cube root of explosive energy (Hopkinson–Cranz scaling).

The math behind it

Radius for a given overpressure scales as W^(1/3). This is a rough estimate for educational use only.

1000 kg TNT at 35 kPa overpressure → roughly 66 m.

Is this precise?

No — it's a simplified scaling estimate, not for safety planning.