Gibbs energy - equilibrium constant calculator converts between ΔG0 and equilibrium constant Keq. In biochemistry, pharmacology and related fields it is common to express a dissociation constant KD (such as equilibrium constant of dissociation of receptor-drug complex) in concentration units.
Eyring equation calculator calculates rate constant k of reaction A → B and half life t1/2 of A from activation free energy ΔG‡ and transmission coefficient κ. In the absence of other kinetic data it is possible to set κ to 1.