Science Calculators

Explore calculators for physics, chemistry, astronomy, earth science, biology, and measurement. Each tool includes transparent formulas and methodology, so you can trust the numbers behind your lab work, coursework, or research planning.

Physics Chemistry Astronomy Earth & Atmosphere Biology Measurement

Physics & Mechanics

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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.

Electromagnetism & Optics

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.

Modern & Nuclear Physics

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.

Chemistry

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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.

Astronomy & Space Science

Orbital Period Calculator

Apply Kepler’s third law for satellites and celestial bodies.

Escape Velocity

Minimum speed required to escape a planet’s gravitational field.

Light-Year Converter

Convert between parsecs, astronomical units, and kilometers.

Earth & Atmospheric Science

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.

Biology & Genetics

Biology tools →

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.

Measurement & Uncertainty

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.

Need something specific? Use the search bar above or filter by category. Each calculator includes references and detailed methodology so you can cite or audit your calculations.