Science Calculators

Kinematics (SUVAT)

Solve displacement, velocity, time, and acceleration with step-by-step outputs.

Simple harmonic motion

Amplitude, angular frequency, and phase relationships for oscillators.

Work & energy

Compute work, power, kinetic and potential energy with unit-aware inputs.

Centripetal force

Calculate centripetal force for circular motion scenarios.

Hydrostatic pressure

Pressure at depth for fluids with unit-aware outputs.

Photoelectric effect

Work function, stopping voltage, and kinetic energy of emitted electrons.

Nuclear reaction q-value

Energy released/absorbed in nuclear reactions with mass defect inputs.

Relativistic mass

Mass increase as velocity approaches the speed of light.

Heisenberg uncertainty

Position/momentum uncertainty product with Planck’s constant.

Coulomb’s law

Electrostatic force and field intensity between point charges.

Reactance & impedance

Analyse capacitive and inductive reactance, series/parallel circuits.

Thin lens equation

Compute magnification and image distance for lenses and mirrors.

Relativistic time dilation

Lorentz factor, Δt′, and velocity fractions relative to the speed of light.

Radioactive decay & half-life

N(t), activity, and decay constants with exponential plots.

Compton scattering

Wavelength shifts and photon energy after scattering.

Molecular weight calculator

Parse formulas, hydrates, and nested groups to get molar mass and composition.

Henderson–hasselbalch

Buffer pH predictions with conjugate acid–base ratios.

Beer–lambert law

Absorbance, path length, and concentration relationships.

Arrhenius equation calculator

Calculate reaction rates using the Arrhenius Equation. This tool is perfect for chemistry professionals and students seeking precise results.

Crystal lattice energy calculator (born-haber cycle)

Calculate the lattice energy of an ionic compound using the Born-Haber Cycle with our interactive tool. Suitable for advanced chemistry studies.

Chemical equation balancer

An authoritative tool to balance chemical equations, ensuring accurate stoichiometry calculations for educational and professional purposes.

Electronegativity difference calculator

Calculate the electronegativity difference between elements to determine bond polarity with this authoritative calculator.

Empirical formula calculator

Calculate the empirical formula of a compound using our authoritative tool. Input your data and get accurate results instantly.

Fick's law of diffusion calculator | life and earth sciences

Calculate diffusion rates using Fick

Gibbs free energy calculator

Calculate Gibbs Free Energy with our advanced chemistry calculator. Perfect for chemists and students to determine energy changes.

Isotope abundance calculator

Calculate isotopic abundance using our interactive Isotope Abundance Calculator. Ideal for chemists and students.

Nernst equation calculator

Calculate electrochemical cell potentials using the Nernst Equation. An advanced tool for chemistry professionals and students.

Stoichiometry calculator

An authoritative stoichiometry calculator designed for chemical engineers and students to solve complex chemical equations efficiently.

Titration curve calculator

An advanced titration curve calculator for detailed chemistry analysis. Calculate and visualize titration curves with precision.

Orbital maneuver (hohmann)

Delta‑v and transfer timing for efficient orbit changes.

Satellite orbit calculator

Orbital period, altitude, and velocity from central body μ and radius.

Astronomical redshift

Doppler redshift, z factor, and recession velocity for cosmology.

Dew point

Magnus formula for dew point from temperature and relative humidity.

Heat index

Feel-like temperature based on air temperature and humidity.

Wind chill

US/Canada wind chill formula for exposed skin risk analysis.

DNA → protein translator

Convert DNA or RNA sequences into amino acid chains with codon tables.

DNA concentration

Normalize A260 readings to ng/µL, nM, and copies per µL with purity ratios.

Hemocytometer counter

Convert manual counts into cells per mL with dilution correction.

Cell doubling time calculator | science › biology

Professional-grade cell doubling time calculator. Compute doubling time, growth rate, time to target, initial or final cell counts using rigorously derived formulas from exponential growth. Mobile-first, WCAG 2.1 AA accessible.

Island biogeography calculator

Advanced Island Biogeography Calculator for professional use in Life and Earth Sciences. Calculate and understand species distribution on islands with precision.

Niche breadth calculator

Calculate niche breadth for life and earth sciences using our advanced niche breadth calculator.

Significant figures

Count sig figs, apply rounding rules, and format scientific notation.

Uncertainty propagation

Combine measurement uncertainties for sums, products, and ratios.

Calibration curve

Construct linear regression curves for instrument calibration datasets.