Science Calculators
Tools for physics, chemistry, and other scientific fields for both students and professionals.
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175
- AccelerationAcceleration - Perform scientific calculations with precision and accuracy.Open tool
- Angular AccelerationAngular Acceleration - Perform scientific calculations with precision and accuracy.Open tool
- Angular ImpulseAngular Impulse - Perform scientific calculations with precision and accuracy.Open tool
- Angular Impulse MomentumAngular Impulse Momentum - Perform scientific calculations with precision and accuracy.Open tool
- Angular MomentumAngular Momentum - Perform scientific calculations with precision and accuracy.Open tool
- Angular VelocityAngular Velocity - Perform scientific calculations with precision and accuracy.Open tool
- Annealing TemperatureAnnealing Temperature - Perform scientific calculations with precision and accuracy.Open tool
- Antibiotic StockAntibiotic Stock - Perform scientific calculations with precision and accuracy.Open tool
- Aperture Antenna Electric FieldCompute far-field electric field from transmit power, gain, and distance (E = √(η·S)).Open tool
- Arrhenius Equation CalculatorCalculate reaction rate constants and activation energy.Open tool
- Battery Energy Density CalculatorCalculate battery energy density, capacity, and performance metrics.Open tool
- Beer–Lambert Law CalculatorCalculate absorbance, concentration, molar absorptivity, and path length.Open tool
- Bernoullis Equation SolverBernoullis Equation Solver - Perform scientific calculations with precision and accuracy.Open tool
- BJT Cascode Amplifier CalculatorAnalyze BJT cascode amplifier circuits with precision and accuracy.Open tool
- Buffer Solution CalculatorCalculate pH and composition of buffer solutions using Henderson-Hasselbalch equation.Open tool
- Bulk ModulusBulk Modulus - Perform scientific calculations with precision and accuracy.Open tool
- BuoyancyBuoyancy - Perform scientific calculations with precision and accuracy.Open tool
- Capacitance CalculatorCapacitance - Perform scientific calculations with precision and accuracy.Open tool
- Carbon Footprint CalculatorEstimate your annual CO₂ emissions based on your lifestyle, including transportation, home energy, and diet.Open tool
- Carnot Efficiency CalculatorCarnot Efficiency - Perform scientific calculations with precision and accuracy.Open tool
- Cell Culture DilutionCell Culture Dilution - Perform scientific calculations with precision and accuracy.Open tool
- Centripetal AccelCentripetal Accel - Perform scientific calculations with precision and accuracy.Open tool
- CfuCfu - Perform scientific calculations with precision and accuracy.Open tool
- Chromatography Retention Factor (Rf) CalculatorCalculate Rf values for thin-layer chromatography (TLC) and paper chromatography.Open tool
- Circuit Breaker SizingEstimate recommended breaker size with safety factor based on load voltage and current.Open tool
- Circular Motion CalculatorCircular Motion - Perform scientific calculations with precision and accuracy.Open tool
- Climate Zone CalculatorDetermine climate zone and growing zone based on locationOpen tool
- Collision Theory CalculatorAnalyze molecular collision rates and reaction kinetics.Open tool
- Common Base AmplifierCommon Base Amplifier - Perform scientific calculations with precision and accuracy.Open tool
- Comprehensive Unit ConverterConvert between various units of measurement including length, weight, volume, temperature, and more.Open tool
- Compton Scattering CalculatorCompton Scattering - Perform scientific calculations with precision and accuracy.Open tool
- Conductivity CalculatorCalculate electrical conductivity of chemical solutions.Open tool
- Constant Acceleration Displacement CalculatorCalculate signed displacement from initial velocity, final velocity, and constant acceleration without time.Open tool
- Coulombs Law CalculatorCoulombs Law - Perform scientific calculations with precision and accuracy.Open tool
- Dbm To WattsDbm To Watts - Perform scientific calculations with precision and accuracy.Open tool
- De Broglie Wavelength CalculatorDe Broglie Wavelength - Perform scientific calculations with precision and accuracy.Open tool
- Density CalculatorDensity - Perform scientific calculations with precision and accuracy.Open tool
- Diffraction Interference CalculatorDiffraction Interference - Perform scientific calculations with precision and accuracy.Open tool
- Dilution CalculatorCalculate dilution ratios and final concentrations (C1V1=C2V2)Open tool
- Dimensional Analysis CheckerDimensional Analysis Checker - Perform scientific calculations with precision and accuracy.Open tool
- Distance to Horizon CalculatorCalculate how far you can see to the horizon based on heightOpen tool
- DNA GC Content CalculatorCalculate GC percentage, sequence length, GC count, and AT count from a DNA sequence.Open tool
- DNA/RNA Molarity CalculatorConvert DNA or RNA mass concentration to molarity, or molarity to mass concentration, using nucleic acid type and length.Open tool
- Doppler Effect CalculatorDoppler Effect - Perform scientific calculations with precision and accuracy.Open tool
- Drag ForceDrag Force - Perform scientific calculations with precision and accuracy.Open tool
- Dry FrictionDry Friction - Perform scientific calculations with precision and accuracy.Open tool
- Dynamic ViscosityDynamic Viscosity - Perform scientific calculations with precision and accuracy.Open tool
- Earthquake Magnitude CalculatorConvert between Richter scale, moment magnitude, and energy releasedOpen tool
- EfficiencyEfficiency - Perform scientific calculations with precision and accuracy.Open tool
- Elastic Modulus CalculatorElastic Modulus - Perform scientific calculations with precision and accuracy.Open tool
- Electric Field Potential CalculatorElectric Field Potential - Perform scientific calculations with precision and accuracy.Open tool
- Electrical Resistivity CalculatorElectrical Resistivity - Perform scientific calculations with precision and accuracy.Open tool
- Electro Dialysis Salt RemovalElectro Dialysis Salt Removal - Perform scientific calculations with precision and accuracy.Open tool
- Empirical & Molecular Formula CalculatorDetermine empirical and molecular formulas from composition data.Open tool
- EnergyEnergy - Perform scientific calculations with precision and accuracy.Open tool
- Energy Conservation CalculatorEnergy Conservation - Perform scientific calculations with precision and accuracy.Open tool
- Enthalpy Change CalculatorCalculate ΔH for chemical reactions.Open tool
- Entropy & Gibbs Free Energy CalculatorCalculate ΔS and ΔG to predict reaction spontaneity.Open tool
- Entropy Change CalculatorEntropy Change - Perform scientific calculations with precision and accuracy.Open tool
- Equilibrium Constant (K) CalculatorCalculate equilibrium constant from concentrations.Open tool
- Error Propagation CalculatorError Propagation - Perform scientific calculations with precision and accuracy.Open tool
- Escape Velocity CalculatorEscape Velocity - Perform scientific calculations with precision and accuracy.Open tool
- Faraday's Law of Electrolysis CalculatorCalculate mass deposited or dissolved during electrolysis using Faraday's law.Open tool
- Fire PressureFire Pressure - Perform scientific calculations with precision and accuracy.Open tool
- ForceForce - Perform scientific calculations with precision and accuracy.Open tool
- Force and Acceleration CalculatorCalculate force, mass, and acceleration using NewtonOpen tool
- FrequencyFrequency - Perform scientific calculations with precision and accuracy.Open tool
- Friction Loss In BendFriction Loss In Bend - Perform scientific calculations with precision and accuracy.Open tool
- Froude NumberFroude Number - Perform scientific calculations with precision and accuracy.Open tool
- Gamma MeanGamma Mean - Perform scientific calculations with precision and accuracy.Open tool
- Gel Electrophoresis Band SizeGel Electrophoresis Band Size - Perform scientific calculations with precision and accuracy.Open tool
- Genetics and Punnett Square CalculatorCalculate inheritance probability and genetic outcomesOpen tool
- Gravimetric Analysis CalculatorCalculate mass percent and composition from gravimetric analysis data.Open tool
- Gravitational FieldGravitational Field - Perform scientific calculations with precision and accuracy.Open tool
- Gravitational Force CalculatorSolve F = Gm₁m₂/r² with metric and imperial unit conversions.Open tool
- Gravitational PotentialGravitational Potential - Perform scientific calculations with precision and accuracy.Open tool
- Growth RateGrowth Rate - Perform scientific calculations with precision and accuracy.Open tool
- Half-Life and Radioactive Decay CalculatorCalculate radioactive decay, remaining quantity, and half-lifeOpen tool
- Harmonic Tide Model CalculatorExplore an educational water-level model using M2 and K1 harmonic constituent amplitudes and phases.Open tool
- Heat (q = mcΔT) CalculatorCalculate heat transfer and temperature changes.Open tool
- Heat Transfer CalculatorHeat Transfer - Perform scientific calculations with precision and accuracy.Open tool
- Heisenberg Uncertainty CalculatorHeisenberg Uncertainty - Perform scientific calculations with precision and accuracy.Open tool
- Hookes LawHookes Law - Perform scientific calculations with precision and accuracy.Open tool
- Ideal Gas Law CalculatorIdeal Gas Law - Perform scientific calculations with precision and accuracy.Open tool
- ImpulseImpulse - Perform scientific calculations with precision and accuracy.Open tool
- Induced Emf CalculatorInduced Emf - Perform scientific calculations with precision and accuracy.Open tool
- Ionic Strength CalculatorCalculate ionic strength of solutions for activity coefficient corrections.Open tool
- Ka/Kb CalculatorCalculate acid and base dissociation constants.Open tool
- Kinematic ViscosityKinematic Viscosity - Perform scientific calculations with precision and accuracy.Open tool
- Lens Mirror Equation CalculatorLens Mirror Equation - Perform scientific calculations with precision and accuracy.Open tool
- LigationLigation - Perform scientific calculations with precision and accuracy.Open tool
- Limiting Reactant CalculatorIdentify the limiting reagent in chemical reactions.Open tool
- Luminosity and Magnitude Difference CalculatorCalculate astronomical magnitude difference from two comparable fluxes or luminosities.Open tool
- Mach Number CalculatorCalculate Mach number, object speed, or local speed of sound using M = v/a.Open tool
- Magnetic Field CalculatorCalculate magnetic field magnitude from force on a moving charge using the Lorentz-force equation.Open tool
- Mass ContinuityMass Continuity - Perform scientific calculations with precision and accuracy.Open tool
- Mass Flow RateMass Flow Rate - Perform scientific calculations with precision and accuracy.Open tool
- Meters per Second to Kilometers per Hour ConverterConvert speed instantly between meters per second (m/s) and kilometers per hour (km/h).Open tool
- Molar Mass and Molecular Weight CalculatorCalculate molar mass, relative formula mass, and elemental composition from a chemical formula.Open tool
- Molar Solution and Media Preparation CalculatorCalculate the solute mass needed for a target molarity and final solution volume.Open tool
- Mole CalculatorConvert between amount in moles, sample mass, and molar mass using n = m/M.Open tool
- Moment Of Inertia CalculatorMoment Of Inertia - Perform scientific calculations with precision and accuracy.Open tool
- MomentumMomentum - Perform scientific calculations with precision and accuracy.Open tool
- Momentum and Collision CalculatorCalculate momentum, impulse, and collision outcomesOpen tool
- Nernst Equation CalculatorCalculate cell potential under non-standard conditions using the Nernst equation.Open tool
- Neutralization Reaction CalculatorCalculate volumes and concentrations for acid-base neutralization reactions.Open tool
- Nuclear Decay CalculatorCalculate expected radioactive quantity remaining, quantity decayed, and decay constant from half-life.Open tool
- Nucleic Acid Dilution CalculatorCalculate DNA or RNA stock and diluent volumes for a target mass concentration.Open tool
- OD600 to Cell Density CalculatorEstimate cell density from blank-corrected OD600 and a laboratory-specific calibration factor, then calculate dilution volumes.Open tool
- OhmCalculate voltage, current, resistance, and power in electrical circuitsOpen tool
- Oligo and Primer Resuspension CalculatorCalculate the resuspension volume needed to prepare an oligonucleotide stock from nmol and target µM concentration.Open tool
- Optical Power CalculatorOptical Power - Perform scientific calculations with precision and accuracy.Open tool
- Orbital Mechanics CalculatorOrbital Mechanics - Perform scientific calculations with precision and accuracy.Open tool
- Orbital SpeedOrbital Speed - Perform scientific calculations with precision and accuracy.Open tool
- PCR Master Mix CalculatorCalculate per-reaction and master-mix reagent volumes from stock and final concentrations, reaction count, and overage.Open tool
- Pendulum CalculatorCalculate simple-pendulum period, frequency, effective length, or local gravitational acceleration using the small-angle model.Open tool
- Percent Error and Absolute Error CalculatorCalculate signed difference, absolute error, and absolute percent error from an observed and accepted value.Open tool
- Percent Yield CalculatorCompare actual yield to theoretical yield of reactions.Open tool
- Periodic Table Element LookupFind an element by symbol or atomic number and view its representative atomic mass.Open tool
- pH and pOH CalculatorCalculate pH, pOH, hydrogen ion concentration, and hydroxide ion concentration for aqueous solutions at 25 °C.Open tool
- Phase Change CalculatorPhase Change - Perform scientific calculations with precision and accuracy.Open tool
- Phase Diagram CalculatorEstimate the equilibrium phase of pure water from temperature and absolute pressure.Open tool
- Photoelectric Effect CalculatorPhotoelectric Effect - Perform scientific calculations with precision and accuracy.Open tool
- Photon Energy CalculatorPhoton Energy - Perform scientific calculations with precision and accuracy.Open tool
- Plasmid DNA Copy Number CalculatorEstimate plasmid DNA molecules from sample mass, plasmid length, and average molar mass per base pair.Open tool
- Poiseuilles Flow RatePoiseuilles Flow Rate - Perform scientific calculations with precision and accuracy.Open tool
- Potential EnergyPotential Energy - Perform scientific calculations with precision and accuracy.Open tool
- Power CalculatorCalculate work-time, force-velocity, and voltage-current power relationships with unit conversion.Open tool
- PressurePressure - Perform scientific calculations with precision and accuracy.Open tool
- Pressure In FluidPressure In Fluid - Perform scientific calculations with precision and accuracy.Open tool
- Projectile Motion CalculatorProjectile Motion - Perform scientific calculations with precision and accuracy.Open tool
- PSI to Kilopascals ConverterConvert pressure bidirectionally between pounds-force per square inch and kilopascals.Open tool
- Rc Rl Rlc Circuit CalculatorRc Rl Rlc Circuit - Perform scientific calculations with precision and accuracy.Open tool
- Reactance CalculatorCalculate inductive or capacitive reactance from AC frequency and component value.Open tool
- Reaction Quotient (Q) CalculatorPredict reaction direction by comparing Q and K.Open tool
- Reaction Stoichiometry CalculatorCalculate amounts of reactants and products in chemical reactions.Open tool
- Redshift CalculatorCalculate spectral redshift, observed wavelength, or rest wavelength from the other two values.Open tool
- Relativistic Energy CalculatorCalculate Lorentz factor, rest energy, total energy, and relativistic kinetic energy.Open tool
- Resistance from Conductivity CalculatorCalculate conductor resistance, conductivity, length, or cross-sectional area using R = L/(σA).Open tool
- Restriction Digest CalculatorCalculate DNA, buffer, restriction enzyme, and water volumes for a restriction digest recipe.Open tool
- Reynolds Number CalculatorCalculate Reynolds number for fluid flow analysis with precision and accuracy.Open tool
- Rotational DynamicsRotational Dynamics - Perform scientific calculations with precision and accuracy.Open tool
- Rotational Kenetic EnergyRotational Kenetic Energy - Perform scientific calculations with precision and accuracy.Open tool
- Rotational Kinematics CalculatorSolve constant-angular-acceleration equations for displacement, velocity, acceleration, or time.Open tool
- Rotational PowerRotational Power - Perform scientific calculations with precision and accuracy.Open tool
- Rotational WorkRotational Work - Perform scientific calculations with precision and accuracy.Open tool
- Schwarzschild Radius CalculatorCalculate the Schwarzschild radius, event-horizon diameter, and light-crossing time from mass.Open tool
- Scientific Constants ReferenceSearch frequently used physical constants with CODATA values, symbols, SI units, and exact or measured status.Open tool
- Scientific Notation ConverterConvert decimal, scientific, E, engineering, and SI-prefix notation or calculate with powers of ten.Open tool
- Shear Modulus CalculatorCalculate shear modulus, shear stress, or shear strain from direct values or tangential force and specimen geometry.Open tool
- Simple Harmonic Motion CalculatorCalculate mass-spring oscillator period, frequency, angular frequency, speed, acceleration, energy, mass, or spring constant.Open tool
- Snells Law CalculatorSnells Law - Perform scientific calculations with precision and accuracy.Open tool
- Solubility Product (Ksp) CalculatorCalculate solubility product from molar solubility or solve molar solubility from Ksp and salt stoichiometry.Open tool
- Solution Mixing CalculatorCalculate final concentration when mixing two solutions or find source volumes for a target concentration.Open tool
- Specific Heat CalculatorSpecific Heat - Perform scientific calculations with precision and accuracy.Open tool
- Spectrophotometry Calibration CalculatorCreate calibration curves and calculate unknown concentrations from absorbance.Open tool
- Spring Potential EnergySpring Potential Energy - Perform scientific calculations with precision and accuracy.Open tool
- Standard Cell Potential CalculatorCalculate standard cell potential for electrochemical reactions.Open tool
- Surface TensionSurface Tension - Perform scientific calculations with precision and accuracy.Open tool
- Symmetrical InductanceSymmetrical Inductance - Perform scientific calculations with precision and accuracy.Open tool
- Synchronous Motor Torque CalculatorCalculate shaft torque from power and RPM or derive synchronous speed from supply frequency and motor poles.Open tool
- Thermal Expansion CalculatorThermal Expansion - Perform scientific calculations with precision and accuracy.Open tool
- Time Dilation CalculatorSolve Δt = γΔτ for time or speed with exact speed-of-light conversions.Open tool
- Titration Curve CalculatorPlot initial, buffer, equivalence, and excess-base regions for a monoprotic weak acid at 25 °C.Open tool
- Torque CalculatorTorque - Perform scientific calculations with precision and accuracy.Open tool
- Transformer Turns Ratio CalculatorSolve Vs/Vp = Ns/Np = Ip/Is for an ideal AC transformer.Open tool
- Van der Waals Equation CalculatorCalculate real gas behavior with intermolecular forces.Open tool
- VelocityVelocity - Perform scientific calculations with precision and accuracy.Open tool
- Volume ContinuityVolume Continuity - Perform scientific calculations with precision and accuracy.Open tool
- Volume Flow RateVolume Flow Rate - Perform scientific calculations with precision and accuracy.Open tool
- Wave Equation CalculatorWave Equation - Perform scientific calculations with precision and accuracy.Open tool
- Wave Properties CalculatorCalculate wave speed, frequency, and wavelength with v = fλ.Open tool
- Work CalculatorCalculate mechanical work from force, displacement, and angle, or solve for any of those quantities.Open tool
- Work EnergyWork Energy - Perform scientific calculations with precision and accuracy.Open tool
- Young’s Modulus CalculatorCalculate Young’s modulus, normal stress, or engineering strain with E = σ/ε.Open tool
Free online science calculators
Explore 176 science calculators for physics, chemistry, biology, earth science, electronics, fluid mechanics, thermodynamics, and scientific measurement. Solve common equations, convert units, and check laboratory or engineering calculations directly in your browser.
Scientific results depend on consistent units, appropriate significant figures, and the assumptions of each formula. Review the equation and variable definitions on the calculator page before applying a result to laboratory, design, safety, or professional work.
Popular science calculators
Start with common physics, electrical, chemistry, measurement, and fluid-mechanics equations.
- Force CalculatorCalculate force from mass and acceleration using Newton’s second law.
- Ohm’s Law CalculatorSolve relationships between voltage, current, resistance, and power.
- Ideal Gas Law CalculatorSolve pressure, volume, amount, or temperature for an ideal gas.
- Density CalculatorCalculate density, mass, or volume with compatible units.
- Dilution CalculatorCalculate stock and final concentration or solution volume.
- Reynolds Number CalculatorEstimate flow regime from velocity, scale, density, and viscosity.
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