All calculatorsCell Biology Calculators & Tools
See how cells add up—quantify the microscopic world.
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Activation Energy Calculator
Compute Eₐ or k₂ using the Arrhenius equation with steps
Arrhenius Equation Calculator
Calculate k, activation energy, or k₂—clear steps and plot included
Entropy Calculator
Calculate entropy changes for gases, heating, and phase changes
Half-Life Calculator
Compute N, k, t, or t₁/₂—enter three, get the rest
PCR Master Mix Calculator
Calculate per-reaction and total PCR master mix volumes (with overage)