HALF-LIFE CALCULATOR
Convert between half-life, mean lifetime, and decay constant for radioactive substances. Essential tool for nuclear physics, chemistry, and radioactive decay calculations.
DECAY PARAMETERS
DECAY FORMULAS
T½ = ln(2) / λ
τ = 1 / λ
T½ = τ × ln(2)
Half-life (T½) is the time required for a quantity to reduce to half its initial value. The decay constant (λ) is the probability of decay per unit time, and mean lifetime (τ) is the average lifetime of a radioactive particle before it decays.
CALCULATION RESULTS
HALF-LIFE (T½)
0.000
MEAN LIFETIME (τ)
0.000
DECAY CONSTANT (λ)
0.000
DECAY PERCENTAGE
0.000%
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