Nuclear Weapons and Fuel Calculators 

Below are our on-line calculators for calculating nuclear weapons effects and uranrium enrichment. The first two calculators show the blast effect and fallout from use of nuclear weapons. The other calculators can be used to examine enrichment of uranium under various circumstances defined by you. The calculators were developed by FAS staff:

Nuclear Weapon Effects Calculator
An illustration of the destructive power of the blast created by a nuclear weapon. 

Nuclear Weapon Fallout Calculator
Shows the pattern of radioactive fallout resulting from use of a nuclear weapons.

Uranium Centrifuge Cascade Simulator 1.0 (beta)
This tool will create an ideal Uranium Centrifuge Cascade tailored to values entered by the user.

Uranium Enrichment Calculator
How long does it take to enrich enough Uranium to make a nuclear weapon if one already has an enrichment cascade and consistently adds centrifuges to that cascade? The following calculator allows a user to specify the number of centrifuges in the initial cascade, the yearly Separative Work Unit capacity of each centrifuge, and the number of centrifuges added to the cascade per day.