🧪 Chemistry
First Order Half Life Calculator
Calculate half-life from a first-order rate constant.
Result
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Formula
t½ = ln 2 ÷ k
How to use it
Enter the known values, keep units consistent, and select Calculate. The result is rounded for readability.
Important note
This educational calculator uses a standard simplified relationship. Laboratory, clinical, engineering, and research decisions may require additional variables, calibrated equipment, and professional review.