Rate Constant Calculator (k from Half-Life)
Convert half-life (t½) to the rate constant (k) for common reaction orders.
Inputs Reaction settings
Must be numeric and > 0.
Shown for 0th and 2nd order only.
Required when “custom” is selected (max 16 characters).
Options Steps
Results
ln(2) = 0.6931471805599453
Rate constant
k
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Units
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Equation used
Order
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Equation
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Common conversions
Note
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Inputs
t½
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[A]₀
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