Half-Life Calculator
Free Half-Life Calculator for chemistry. Enter variables to compute results using verified scientific formulas with step-by-step explanations.
Formula
N(t) = N₀(1/2)^(t/h)
Remaining amount equals initial amount times (1/2) raised to the power of (time elapsed / half-life).
Worked Examples
Example 1: Carbon Dating
Problem:100g C14 after 2000 years (HL 5730)
Solution:100 * 0.5^(2000/5730)
Result:78.5 g
Frequently Asked Questions
Half-Life Formula?
N(t) = N₀(1/2)^(t/t½). N₀=initial, t=elapsed time, t½=half-life.
What is Carbon-14 half-life?
Approximately 5,730 years.