Home Back

Nuclear Blast Calculator

Nuclear Blast Radius Formula:

\[ Radius = (Yield \text{ in kt})^{1/3} \times Scaling \ Factor \]

kt
unitless

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is the Nuclear Blast Radius Formula?

The Nuclear Blast Radius formula calculates the approximate radius of destruction for a nuclear explosion based on its yield and a scaling factor. This formula follows the cube-root scaling law that governs nuclear blast effects.

2. How Does the Calculator Work?

The calculator uses the Nuclear Blast Radius formula:

\[ Radius = (Yield \text{ in kt})^{1/3} \times Scaling \ Factor \]

Where:

Explanation: The cube-root relationship means that to double the blast radius, the yield must increase by a factor of eight.

3. Importance of Blast Radius Calculation

Details: Accurate blast radius estimation is crucial for nuclear weapons effects analysis, civil defense planning, and understanding the destructive potential of nuclear devices.

4. Using the Calculator

Tips: Enter yield in kilotons (kt) and an appropriate scaling factor. Common scaling factors range from 0.1 to 2.0 depending on the specific effect being modeled.

5. Frequently Asked Questions (FAQ)

Q1: What are typical scaling factors for different effects?
A: Fireball radius typically uses ~0.1, severe damage radius ~0.4, and thermal radiation radius ~1.0-2.0, though these vary based on specific conditions.

Q2: Why does the radius scale with the cube root of yield?
A: This relationship occurs because the volume of effect scales with the cube of radius, while the energy released scales linearly with yield.

Q3: How accurate is this formula?
A: It provides a reasonable approximation but actual effects depend on many factors including altitude of detonation, terrain, and atmospheric conditions.

Q4: Can this formula be used for conventional explosions?
A: The cube-root scaling law applies to conventional explosions as well, though different scaling factors would be needed.

Q5: What's the difference between air burst and ground burst effects?
A: Ground bursts typically create smaller but more intense local effects due to surface interaction, while air bursts maximize the area of effect.

Nuclear Blast Calculator© - All Rights Reserved 2025