Biochemistry Calculators & Converters
Quantify life’s reactions - clear math for complex biochem.
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
Beer-Lambert Law Calculator
Calculate absorbance, concentration, path length, or molar absorptivity
Buffer Preparation Calculator
Generate lab-ready buffer recipes from target pH and volume.
Cube Volume Calculator
Instant cube volume from edge or diagonal, with unit conversion.
DNA Concentration Calculator
Calculate DNA concentration from A260 or convert ng/µL and nM
Entropy Calculator
Calculate entropy changes for gases, heating, and phase changes
Enzyme Activity Calculator
Compute enzyme units, rate, and specific activity from lab assays
Equilibrium ICE-Table Calculator
Calculate chemical equilibrium using ICE tables, Q vs K, and steps
Free Fall Calculator
Calculate free-fall time, impact speed, and terminal velocity
Gibbs Free Energy (ΔG) Calculator
Calculate ΔG from ΔH, ΔS, T or K/Q with steps
Half-Life Calculator
Compute N, k, t, or t₁/₂—enter three, get the rest
Isoelectric Point (pI) Calculator
Compute protein or amino acid pI from pKa values with clear steps
Lean Body Mass Calculator
Estimate your fat-free body weight in seconds — simple & clear
Michaelis–Menten Equation Calculator
Calculate v, Vmax, Km, or [S] using Michaelis–Menten
Osmolarity & Osmolality Calculator
Calculate osmolarity, osmolality, serum estimates, and osmolar gap with step-by-step and tonicity insights
Peptide Net Charge Calculator
Calculate peptide net charge at any pH, estimate pI, and view charge contributions
pH Calculator
Calculate pH, pOH, ion concentrations, and percent dissociation for strong and weak acids and bases
Projectile Motion Calculator
Calculate projectile motion: range, time of flight, max height, target solutions.
Protein Concentration Calculator
Calculate protein concentration via A280, standard curves, and dilutions.