Physics & Engineering Calculators
Unlock the laws of the universe. From classical kinematics and dynamics to complex quantum mechanics, relativity, and astrophysics, our comprehensive library simplifies the most challenging physical concepts.
⏱️ Kinematics — How things move
Arrow Speed CalculatorBallistic Coefficient CalculatorCar Jump Distance CalculatorConservation of Momentum CalculatorDisplacement CalculatorFree Fall CalculatorFree Fall with Air Resistance CalculatorFriction CalculatorGround Speed CalculatorHorizontal Projectile Motion CalculatorImpulse and Momentum CalculatorInclined Plane CalculatorMagnitude of Acceleration CalculatorMaximum Height Calculator – Projectile MotionMOA Calculator — Minute of AngleMomentum CalculatorMuzzle Velocity CalculatorPolar Moment of Inertia CalculatorProjectile Motion CalculatorProjectile Range CalculatorQuarter Mile CalculatorResultant Velocity CalculatorRolling Resistance CalculatorSled Ride CalculatorSUVAT CalculatorTerminal Velocity CalculatorTime of Flight Calculator – Projectile MotionTrajectory CalculatorVelocity Calculator
➡️ Dynamics — Why things move
Acceleration CalculatorAngle of Banking CalculatorCar Crash CalculatorForce CalculatorGravitational Force CalculatorHooke's Law Calculatorkg to Newtons CalculatorNewton's Second Law CalculatorNewton's Third Law CalculatorNormal Force CalculatorQuiz: Net Force CalculatorNet Force CalculatorStopping Distance CalculatorTension Calculator
⚖️ Statics — When things don't move
⚡ Energy, work, and power
Bullet Energy CalculatorEIRP Calculator — Effective Isotropic Radiated PowerElastic Potential Energy CalculatorFPE calculator — Foot-pounds of EnergyImpact Energy CalculatorKinetic Energy CalculatorPotential Energy CalculatorPower-to-Weight Ratio CalculatorQuiz: Potential Energy CalculatorRecoil Energy CalculatorSignal-to-Noise Ratio CalculatorTNT Equivalent CalculatorWatt ConverterWork CalculatorWork and Power Calculator
🌎 Rotational and periodic motion
Angular Acceleration CalculatorAngular Displacement CalculatorAngular Frequency CalculatorAngular Momentum CalculatorAngular Velocity CalculatorCentrifugal Force CalculatorCentrifuge CalculatorCentripetal Force CalculatorCircular Motion CalculatorCoriolis Effect CalculatorDamping Ratio CalculatorFlywheel Energy Storage CalculatorFrequency CalculatorHarmonic Wave Equation CalculatorKinetic Energy of a Pendulum CalculatorMass Moment of Inertia CalculatorPhysical Pendulum CalculatorQuiz: Frequency CalculatorRotational Kinetic Energy CalculatorRotational Stiffness CalculatorSimple Harmonic Motion CalculatorSimple Pendulum CalculatorTorque CalculatorWavelength Calculator
🔍 Optics and light
Angular Resolution CalculatorAperture Area CalculatorBinoculars Range CalculatorBlackbody Radiation CalculatorBragg's Law CalculatorBrewster's Angle CalculatorContact Lens Vertex CalculatorDiffraction Grating CalculatorDiopter CalculatorDistance to Horizon CalculatorEarth Curvature CalculatorIndex of Refraction CalculatorLaser Beam Divergence CalculatorLaser Beam Expander CalculatorLaser Brightness CalculatorLaser Linewidth and Bandwidth CalculatorLaser Beam Spot Size CalculatorLens Maker Equation CalculatorLumen Calculator (Lumen to Lux to Candela)Lux to Foot Candles ConverterMalus Law CalculatorMirror Equation CalculatorOptical Density CalculatorRadar Horizon CalculatorSnell's Law CalculatorSpeed of Light CalculatorTelescope Field of View CalculatorTelescope Magnification CalculatorThin-Film Optical Coating CalculatorThin Lens Equation Calculator
🔊 Acoustic waves
Acoustic Impedance CalculatorAlfvén Velocity CalculatorBeat Frequency CalculatorCritical Damping CalculatordB CalculatordB Gain CalculatorDistance Attenuation CalculatorDoppler Effect CalculatorFrequency ConverterHelmholtz Resonator CalculatorModulation CalculatorReverberation Time CalculatorSound Absorption Coefficient CalculatorSound Wavelength CalculatorSpeed of Sound CalculatorSpeed of Sound in Solids Calculator
🧱 Materials and continuum mechanics
Angle of Repose CalculatorAngle of Twist CalculatorBend Allowance CalculatorBrinell Hardness Number CalculatorBuckling CalculatorBulk Modulus CalculatorCopper Wire Weight CalculatorDensity CalculatorElastic Constants CalculatorElongation CalculatorFactor of Safety CalculatorGold Weight CalculatorHoop Stress CalculatorImpact Test CalculatorIntrinsic Carrier Concentration CalculatorMohr's Circle CalculatorNatural Frequency CalculatorNumber Density CalculatorPoisson's Ratio CalculatorPrincipal Stress CalculatorQuiz: Bend Allowance CalculatorRockwell Hardness Conversion CalculatorSection Modulus CalculatorShear Modulus CalculatorShear Strain CalculatorShear Stress CalculatorShear Wave Velocity CalculatorSlenderness Ratio CalculatorSpecific Gravity CalculatorStiffness Matrix CalculatorStress CalculatorStress Concentration Factor CalculatorThermal Stress CalculatorTorsional Constant CalculatorTorsional Stiffness CalculatorTrue Strain CalculatorVickers Hardness Number CalculatorVolume to Mass CalculatorVon Mises Stress CalculatorYoung's Modulus Calculator
🔩 Machines and mechanisms
Belt Length CalculatorBMEP Calculator (Brake Mean Effective Pressure Calculator)Carburetor CFM CalculatorCrawl Ratio CalculatorEngine Displacement CalculatorExhaust Diameter CalculatorFulcrum CalculatorGear Ratio CalculatorLever CalculatorLinear Actuator Force CalculatorMechanical Advantage CalculatorNPSH Calculator – Net Positive Suction HeadPiston Force CalculatorPiston Speed CalculatorProp Pitch CalculatorProp Slip CalculatorPulley CalculatorPump Horsepower CalculatorShaft Size CalculatorSpeeds and Feeds CalculatorSpring CalculatorSpring Rate CalculatorTorsion Spring CalculatorTransmission CalculatorTwist Rate CalculatorWing Loading Calculator
🪐 Astronomy calculators
Alien Civilization CalculatorDelta V CalculatorEarth Orbit CalculatorEscape Velocity CalculatorExoplanet Discovery CalculatorHohmann Transfer CalculatorRocket Equation CalculatorKepler's Third Law CalculatorOrbital Period CalculatorOrbital Velocity CalculatorRocket Thrust CalculatorSpecific Impulse CalculatorSynodic Period CalculatorThrust to Weight Ratio CalculatorUFO Travel Calculator
🌌 Astrophysics calculators
Black Hole Collision CalculatorBlack Hole Temperature CalculatorDrake Equation CalculatorHubble Law Distance CalculatorLight Year CalculatorLuminosity CalculatorOlber's ParadoxParallax CalculatorRadiation Pressure CalculatorRedshift CalculatorSchwarzschild Radius CalculatorUniverse Expansion Calculator
🚀 Relativity calculators
🧲 Electromagnetism calculators
Acceleration in the Electric Field CalculatorAC Wattage CalculatorCapacitance CalculatorCapacitive Reactance CalculatorConductivity to Resistivity CalculatorCoulomb's Law CalculatorCutoff Frequency CalculatorCyclotron Frequency CalculatorDebye Length CalculatorDelta to Wye ConversionDipole Moment CalculatorDrift Velocity CalculatorElectrical Power CalculatorElectric Field CalculatorElectric Motor Torque CalculatorElectric Potential CalculatorEnergy Density of Fields CalculatorExcess Electrons CalculatorFaraday's Law CalculatorFree Space Path Loss CalculatorFrequency Bandwidth CalculatorFresnel Zone CalculatorGauss's Law CalculatorHall Coefficient Calculatorhp to amps CalculatorInductive Reactance CalculatorInsertion Loss CalculatorInternal Resistance CalculatorkVA CalculatorLorentz Force CalculatorMagnetic Declination CalculatorMagnetic Dipole Moment CalculatorMagnetic Field of a Straight Current-Carrying Wire CalculatorMagnetic Permeability CalculatorPower Dissipation CalculatorPower Factor CalculatorQuiz: Electrical Power CalculatorQuiz: Power Factor CalculatorSkin Depth CalculatorVoltage Drop CalculatorVolt to Electron Volt CalculatorVSWR Calculator (Voltage Standing Wave Ratio Calculator)Watt CalculatorWatt-hour CalculatorWatts to Amps CalculatorWatts to Lux Calculator
💡 Electronics and circuits
Boost Converter CalculatorBreaker Size CalculatorBridge Rectifier CalculatorBuck Converter CalculatorCapacitive Transformerless Power Supply CalculatorCapacitor Charge Time CalculatorCapacitor CalculatorCapacitor Energy CalculatorCapacitors in Series CalculatorCapacitor Size CalculatorCrossover CalculatorCurrent Divider CalculatorDipole CalculatorFlyback Converter CalculatorForward Converter CalculatorGenerator Power CalculatorHelical Coil CalculatorHigh Pass Filter CalculatorIdeal Transformer CalculatorInductor Energy Storage CalculatorInductors in Parallel CalculatorInductors In Series CalculatorInverting Buck-Boost Converter CalculatorJ-Pole Antenna CalculatorLED Resistor CalculatorLow Pass Filter CalculatorMagnetic Force Between Current-Carrying Wires CalculatorMagnetic Force on a Current-Carrying Wire CalculatorMOSFET CalculatorMOSFET Threshold Voltage Calculator555 Timer CalculatorNoise Figure CalculatorOhm's Law CalculatorParallel Capacitor CalculatorParallel Resistor CalculatorPhoton Detection Efficiency Calculator (SiPM)RC Circuit CalculatorResistor Color Code CalculatorResistor Noise CalculatorResistor Wattage CalculatorResonant Frequency CalculatorRLC Circuit CalculatorRLC Impedance CalculatorRMS Voltage CalculatorSeries Resistor CalculatorShockley Diode CalculatorSolenoid Inductance CalculatorSolenoid Magnetic Field CalculatorSpherical CalculatorThree Phase CalculatorTransformer Sizing CalculatorTransistor Biasing CalculatorVoltage Divider CalculatorVoltage Regulation CalculatorWheatstone Bridge CalculatorWire Gauge CalculatorWire Resistance CalculatorWire Size Calculator
💧 Fluid mechanics
API Gravity CalculatorArchimedes' Principle CalculatorBernoulli Equation CalculatorBroad Crested Weir CalculatorBuoyancy CalculatorCoefficient of Discharge CalculatorCv Flow CalculatorCv Calculator — Valve Flow CoefficientDarcy's Law CalculatorDarcy Weisbach CalculatorDifferential Pressure CalculatorDrag Equation CalculatorFan CalculatorFlow Rate CalculatorFriction Factor CalculatorFriction Loss CalculatorFroude Number CalculatorHydraulic Conductivity CalculatorHydraulic Gradient CalculatorHydraulic Jump CalculatorHydraulic Pressure CalculatorHydraulic Radius CalculatorHydrostatic Pressure CalculatorKnudsen Number CalculatorLift Coefficient CalculatorMach Number CalculatorMagnus Force CalculatorManometer CalculatorMoisture Content CalculatorOblique Shock CalculatorOpen Channel Flow CalculatorOrifice Flow CalculatorPipe Flow CalculatorPneumatic Cylinder Force CalculatorPoise-Stokes ConverterPoiseuille's Law CalculatorPorosity and Permeability CalculatorPounds per Minute CalculatorPrandtl Meyer Expansion CalculatorPrandtl Number CalculatorRefrigerant Capillary Tube CalculatorReynolds Number CalculatorStokes' Law CalculatorWater Density CalculatorWater Pressure at Depth CalculatorWater Viscosity CalculatorWind Correction Angle CalculatorWind Load CalculatorY+ Calculator
☁️ Atmospheric physics
Absolute Humidity CalculatorAir Density CalculatorAir Pressure at Altitude CalculatorCloud Base CalculatorDensity Altitude CalculatorDew Point CalculatorHeat Index CalculatorKinematic Viscosity of Air CalculatorLightning Distance CalculatorMixing Ratio of Air CalculatorPsychrometric CalculatorRelative Humidity CalculatorSCFM Calculator — Standard Cubic Feet per MinuteTemperature at Altitude CalculatorTrue Airspeed CalculatorVirtual Temperature CalculatorWet Bulb Calculator
🌡️ Thermodynamics and heat
Biot Number CalculatorBoltzmann Factor CalculatorBoyle's Law CalculatorBTU to Tons ConverterCalorimetry CalculatorCarnot Efficiency CalculatorCharles' Law CalculatorCoefficient of Performance CalculatorCompressibility Factor CalculatorCurie's Law CalculatorEffectiveness-NTU CalculatorEfficiency CalculatorElectrical Mobility CalculatorEnthalpy CalculatorEvaporation Rate CalculatorGay-Lussac's Law CalculatorHeat Capacity CalculatorHeat Transfer CalculatorHeat Transfer Coefficient CalculatorIdeal Gas Density CalculatorIdeal Gas Law CalculatorIsentropic Flow CalculatorJoule Heating CalculatorLatent Heat CalculatorLMTD Calculator – Log Mean Temperature DifferenceMean Free Path CalculatorMixed Air CalculatorMixed Air Temperature CalculatorNewton's Law of Cooling CalculatorNusselt Number CalculatorParticles Velocity CalculatorRoot Mean Square Velocity CalculatorSensible Heat CalculatorSpecific Gas Constant CalculatorSpecific Heat CalculatorThermal Conductivity CalculatorThermal Diffusivity CalculatorThermal Efficiency CalculatorThermal Energy CalculatorThermal Equilibrium CalculatorThermal Expansion CalculatorThermal Resistance CalculatorCombined Gas Law CalculatorVan der Waals Equation CalculatorWater Heating CalculatorWatts to Heat Calculator
⚛️ Quantum mechanics
Bohr Model CalculatorCompton Scattering CalculatorCompton Wavelength CalculatorCurie Constant CalculatorDe Broglie Wavelength CalculatorFermi Level CalculatorFrequency of Light CalculatorHeisenberg's Uncertainty Principle CalculatorHydrogen Energy Levels CalculatorMagnetic Moment CalculatorPhotoelectric Effect CalculatorPhoton Energy CalculatorRydberg Equation CalculatorStefan Boltzmann Law CalculatorWien's Law Calculator