Enter the energy released in the explosion and the energy released by one ton of TNT into the calculator to determine the blast yield.
Blast Yield Formula
The following formula is used to calculate the blast yield.
BY_{kt} = (E / ET) / 1000Variables:
- BYkt is the blast yield (kilotons, kt, of TNT equivalent)
- E is the energy released in the explosion (joules, J)
- ET is the energy released by one ton of TNT (joules per ton, J/ton)
To calculate the blast yield, divide the energy released in the explosion by the energy released by one ton of TNT to get the TNT equivalent in tons. Then convert tons to the desired yield unit: divide by 1,000 for kilotons (kt) or divide by 1,000,000 for megatons (Mt). This gives the blast yield in terms of the equivalent amount of TNT that would release the same energy when exploded.
What is a Blast Yield?
Blast yield refers to the amount of energy released in an explosion, often used in the context of nuclear weapons. It is typically measured in terms of the equivalent amount of trinitrotoluene (TNT) that would release the same energy when exploded. The units of measurement can range from kilograms or tons for smaller explosions to kilotons (kt) or megatons (Mt) of TNT equivalent for very large explosions. The blast yield helps describe the overall energy scale of the explosive event.
How to Calculate Blast Yield?
The following steps outline how to calculate the Blast Yield using the given formula:
- First, determine the energy released in the explosion (E) in joules.
- Next, determine the energy released by one ton of TNT (ET) in joules (i.e., J per ton of TNT).
- Compute the TNT equivalent in tons: Tons = E / ET.
- Convert tons to the desired unit: BYkt = Tons / 1000 or BYMt = Tons / 1,000,000.
- After calculating the result, check your answer for accuracy.
Example Problem:
Use the following variables as an example problem to test your knowledge:
Energy released in the explosion (E) = 5 x 10^12 joules
Energy released by one ton of TNT (ET) = 4.184 x 10^9 joules
