Other Calculators
Science, utilities, random generators, and everyday tools that do not fit finance, health, or pure math - plus quick access to every calculator category on the site.
What Belongs in "Other"?
This section covers calculators outside the main financial, health, and math categories - science tools, random generators, and practical utilities. We are actively adding more tools in these areas:
Have a calculator request? Contact us and tell us what you need.
Half-Life Explained
Half-life is the time required for half of a radioactive substance to decay. The formula N(t) = Nโ ร (1/2)^(t/tยฝ) models exponential decay for carbon dating, medical isotopes, and nuclear physics problems.
Our Half-Life Calculator solves for any one variable when the other three are known, with a step-by-step breakdown of each calculation.
Random Number Uses
The Random Number Generator creates unbiased integers or decimals in any range. Common uses include lottery picks, statistical sampling, game mechanics, A/B test group assignment, and password generation seeds.
Enable "unique numbers" mode to draw without replacement - useful for raffles and shuffle simulations.