All calculatorsBiology Calculators & Converters
Break down life science problems into clear, easy solutions.
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Activation Energy Calculator
Compute Eₐ or k₂ using the Arrhenius equation with steps
Actual Yield Calculator
Find actual, percent, or theoretical yield with unit conversion
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
Enzyme Activity Calculator
Compute enzyme units, rate, and specific activity from lab assays
Lean Body Mass Calculator
Estimate your fat-free body weight in seconds — simple & clear
Rate Constant Calculator
Compute k from rate or integrated laws with steps, visuals
Wavelength–Frequency–Energy Converter
Convert photon wavelength, frequency, and energy with steps and visuals