Physics calculators
497 calculators in 20 groups. Each one shows its formula, a worked example and its sources.
Acoustic waves 16
- Acoustic impedance calculator
- Alfvén velocity calculator
- Beat frequency calculator
- Critical damping calculator
- dB calculator
- dB gain calculator
- Distance attenuation calculator
- Doppler effect calculator
- Frequency converter
- Helmholtz resonator calculator
- Modulation calculator
- Reverberation time calculator
- Sound absorption coefficient calculator
- Sound wavelength calculator
- Speed of sound calculator
- Speed of sound in solids calculator
Astronomy 15
- Alien civilization calculator
- Delta-v calculator
- Earth orbit calculator
- Escape velocity calculator
- Exoplanet discovery calculator
- Hohmann transfer calculator
- Rocket equation calculator
- Kepler's third law calculator
- Orbital period calculator
- Orbital velocity calculator
- Rocket thrust calculator
- Specific impulse calculator
- Synodic period calculator
- Thrust-to-weight ratio calculator
- UFO travel calculator
Astrophysics 14
- Acceleration due to gravity calculator
- Black hole collision calculator
- Black hole temperature calculator
- Drake equation calculator
- G-force calculator
- Hubble law distance calculator
- Light year calculator
- Luminosity calculator
- Olbers' paradox calculator
- Parallax calculator
- Radiation pressure calculator
- Redshift calculator
- Schwarzschild radius calculator
- Universe expansion calculator
Atmospheric physics 17
- Absolute humidity calculator
- Air density calculator
- Air pressure at altitude calculator
- Temperature at altitude calculator
- Cloud base calculator
- Density altitude calculator
- Dew point calculator
- Heat index calculator
- Kinematic viscosity of air calculator
- Lightning distance calculator
- Mixing ratio of air calculator
- Psychrometric calculator
- Relative humidity calculator
- SCFM calculator
- True airspeed calculator
- Virtual temperature calculator
- Wet bulb calculator
Dynamics - Why things move 15
- Acceleration calculator
- Angle of banking calculator
- Car crash force calculator
- Force calculator
- Friction calculator
- Gravitational force calculator
- Hooke's law calculator
- Inclined plane calculator
- Kilograms to newtons calculator
- Newton's second law calculator
- Newton's third law calculator
- Normal force calculator
- Net force calculator
- Stopping distance calculator
- Tension calculator
Electromagnetism 45
- AC wattage calculator
- Acceleration in an electric field calculator
- Capacitance calculator
- Capacitive reactance calculator
- Conductivity to resistivity calculator
- Coulomb's law calculator
- Cutoff frequency calculator
- Cyclotron frequency calculator
- Debye length calculator
- Delta to wye conversion calculator
- Electric dipole moment calculator
- Drift velocity calculator
- Electric field calculator
- Electric motor torque calculator
- Electric potential calculator
- Electrical power calculator
- Energy density of fields calculator
- Excess electrons calculator
- Faraday's law calculator
- Free space path loss calculator
- Frequency bandwidth calculator
- Fresnel zone calculator
- Gauss's law calculator
- Hall coefficient calculator
- Horsepower to amps calculator
- Inductive reactance calculator
- Insertion loss calculator
- Internal resistance calculator
- kVA calculator
- Lorentz force calculator
- Magnetic declination calculator
- Magnetic dipole moment calculator
- Magnetic field of a straight wire calculator
- Magnetic permeability calculator
- Power dissipation calculator
- Power factor calculator
- Skin depth calculator
- Voltage drop calculator
- Volts to electronvolts calculator
- VSWR calculator
- Watt calculator
- Watt-hour calculator
- Watts to amps calculator
- Watts to lux calculator
- Wavenumber calculator
Electronics and circuits 65
- 100 amp wire size calculator
- 12 volt wire size calculator
- 220 volt wire size calculator
- 24 volt wire size calculator
- Boost converter calculator
- Breaker size calculator
- Bridge rectifier calculator
- Buck converter calculator
- Capacitive transformerless power supply calculator
- Capacitor calculator
- Capacitor charge time calculator
- Capacitor energy calculator
- Capacitor size calculator
- Capacitors in series calculator
- Crossover calculator
- Current divider calculator
- Dipole antenna calculator
- Flyback converter calculator
- Forward converter calculator
- Generator power calculator
- Helical coil calculator
- High-pass filter calculator
- Ideal transformer calculator
- Inductor energy calculator
- Inverting buck-boost converter calculator
- J-pole antenna calculator
- LC filter calculator
- LED resistor calculator
- Low-pass filter calculator
- Magnetic force between wires calculator
- Magnetic force on a current-carrying wire calculator
- MOSFET calculator
- MOSFET threshold voltage calculator
- Motor capacitor size calculator
- 555 timer calculator
- Noise figure calculator
- Ohm's law calculator
- Parallel capacitor calculator
- Inductors in parallel calculator
- Parallel resistor calculator
- Photon detection efficiency calculator for SiPMs
- RC circuit calculator
- Resistor colour code calculator
- Resistor noise calculator
- Resistor voltage drop calculator
- Resistor wattage calculator
- LC resonant frequency calculator
- RLC circuit calculator
- RLC impedance calculator
- RMS voltage calculator
- Inductors in series calculator
- Series resistor calculator
- Shockley diode calculator
- Solenoid inductance calculator
- Solenoid magnetic field calculator
- Spherical capacitor calculator
- Three-phase calculator
- Transformer sizing calculator
- Transistor biasing calculator
- Voltage divider calculator
- Voltage regulation calculator
- Wheatstone bridge calculator
- Wire gauge calculator
- Wire resistance calculator
- Wire size calculator
Energy, work, and power 14
- Bullet energy calculator
- EIRP calculator
- Elastic potential energy calculator
- Foot-pounds of energy calculator
- Impact energy calculator
- Kinetic energy calculator
- Potential energy calculator
- Power-to-weight ratio calculator
- Recoil energy calculator
- Signal-to-noise ratio calculator
- TNT equivalent calculator
- Watt converter
- Work calculator
- Work and power calculator
Everyday physics and experiments 9
Fluid mechanics 51
- API gravity calculator
- Archimedes principle calculator
- Bernoulli equation calculator
- Broad-crested weir calculator
- Buoyancy calculator
- Coefficient of discharge calculator
- Cv flow calculator
- Darcy-Weisbach calculator
- Darcy law calculator
- Differential pressure calculator
- Drag equation calculator
- Fan calculator
- Flow rate calculator
- Friction factor calculator
- Friction loss calculator
- Froude number calculator
- Hydraulic conductivity calculator
- Hydraulic gradient calculator
- Hydraulic jump calculator
- Hydraulic pressure calculator
- Hydraulic radius calculator
- Hydrostatic pressure calculator
- Knudsen number calculator
- Lift coefficient calculator
- Mach number calculator
- Magnus force calculator
- Manometer calculator
- Moisture content calculator
- Oblique shock calculator
- Open-channel flow calculator
- Orifice flow calculator
- Pipe flow calculator
- Pipe velocity calculator
- Pneumatic cylinder force calculator
- Poise-stokes converter
- Poiseuille law calculator
- Porosity and permeability calculator
- Pounds per minute calculator
- Prandtl-Meyer expansion calculator
- Prandtl number calculator
- Refrigerant capillary tube calculator
- Reynolds number calculator
- Stokes' law calculator
- Surface tension calculator
- Valve flow coefficient calculator
- Water density calculator
- Water pressure at depth calculator
- Water viscosity calculator
- Wind correction angle calculator
- Wind load calculator
- Y+ calculator
Kinematics - How things move 27
- Arrow speed calculator
- Ballistic coefficient calculator
- Car jump distance calculator
- Conservation of momentum calculator
- Displacement calculator
- Free fall calculator
- Free fall with air resistance calculator
- Ground speed calculator
- Horizontal projectile motion calculator
- Impulse and momentum calculator
- Magnitude of acceleration calculator
- Maximum projectile height calculator
- MOA calculator
- Momentum calculator
- Muzzle velocity calculator
- Polar moment of inertia calculator
- Projectile motion calculator
- Quarter mile calculator
- Projectile range calculator
- Resultant velocity calculator
- Rolling resistance calculator
- Sled ride calculator
- SUVAT calculator
- Terminal velocity calculator
- Projectile time of flight calculator
- Trajectory calculator
- Velocity calculator
Machines and mechanisms 29
- Belt length calculator
- BMEP calculator
- Carburetor CFM calculator
- Crawl ratio calculator
- Diametral pitch calculator
- Engine displacement calculator
- Exhaust diameter calculator
- Fulcrum calculator
- Gear ratio calculator
- Lever calculator
- Linear actuator force calculator
- Mechanical advantage calculator
- NPSH calculator
- Pendulum frequency calculator
- Piston force calculator
- Piston speed calculator
- Propeller pitch calculator
- Propeller slip calculator
- Pulley calculator
- Pump horsepower calculator
- Shaft size calculator
- Speeds and feeds calculator
- Spring calculator
- Spring rate calculator
- Spring rate converter
- Torsion spring calculator
- Transmission calculator
- Twist rate calculator
- Wing loading calculator
Materials and continuum mechanics 43
- Angle of repose calculator
- Angle of twist calculator
- Bend allowance calculator
- Brinell hardness number calculator
- Buckling calculator
- Bulk modulus calculator
- Copper wire weight calculator
- Cube density calculator
- Density calculator
- Cylinder density calculator
- Density to weight calculator
- Elastic constants calculator
- Elongation calculator
- Factor of safety calculator
- Gold weight calculator
- Hoop stress calculator
- Impact test calculator
- Intrinsic carrier concentration calculator
- Mohr's circle calculator
- Natural frequency calculator
- Number density calculator
- Poisson's ratio calculator
- Principal stress calculator
- Rockwell hardness conversion calculator
- Section modulus calculator
- Shear modulus calculator
- Shear strain calculator
- Shear stress calculator
- Shear wave velocity calculator
- Slenderness ratio calculator
- Specific gravity calculator
- Sphere density calculator
- Stiffness matrix calculator
- Stress calculator
- Stress concentration factor calculator
- Thermal stress calculator
- Torsional constant calculator
- Torsional stiffness calculator
- True strain calculator
- Vickers hardness number calculator
- Volume to mass calculator
- Von Mises stress calculator
- Young's modulus calculator
Optics and light 30
- Angular resolution calculator
- Aperture area calculator
- Binoculars range calculator
- Blackbody radiation calculator
- Bragg's law calculator
- Brewster's angle calculator
- Contact lens vertex calculator
- Diffraction grating calculator
- Diopter calculator
- Distance to horizon calculator
- Earth curvature calculator
- Index of refraction calculator
- Laser beam divergence calculator
- Laser beam expander calculator
- Laser brightness calculator
- Laser linewidth and bandwidth calculator
- Laser beam spot size calculator
- Lens maker equation calculator
- Lumen calculator
- Lux to footcandle converter
- Malus law calculator
- Mirror equation calculator
- Optical density calculator
- Radar horizon calculator
- Snell's law calculator
- Speed of light calculator
- Telescope field of view calculator
- Telescope magnification calculator
- Thin-film optical coating calculator
- Thin lens equation calculator
Other 7
Quantum mechanics 15
- Bohr model calculator
- Compton scattering calculator
- Compton wavelength calculator
- Curie constant calculator
- De Broglie wavelength calculator
- Fermi level calculator
- Frequency of light calculator
- Heisenberg's uncertainty principle calculator
- Hydrogen energy levels calculator
- Magnetic moment calculator
- Photoelectric effect calculator
- Photon energy calculator
- Rydberg equation calculator
- Stefan-Boltzmann law calculator
- Wien's law calculator
Relativity 10
Rotational and periodic motion 22
- Angular acceleration calculator
- Angular displacement calculator
- Angular frequency calculator
- Angular momentum calculator
- Angular velocity calculator
- Centrifugal force calculator
- Centrifuge speed calculator
- Centripetal force calculator
- Circular motion calculator
- Coriolis effect calculator
- Damping ratio calculator
- Flywheel energy storage calculator
- Frequency calculator
- Harmonic wave equation calculator
- Kinetic energy of a pendulum calculator
- Physical pendulum calculator
- Rotational kinetic energy calculator
- Rotational stiffness calculator
- Simple harmonic motion calculator
- Simple pendulum calculator
- Torque calculator
- Wavelength calculator
Statics - When things don't move 5
Thermodynamics and heat 48
- Avogadro's law calculator
- Biot number calculator
- Boltzmann factor calculator
- Boyle's law calculator
- BTU to tons converter
- Calorimetry calculator
- Carnot efficiency calculator
- Charles' law calculator
- Compressibility factor calculator
- Curie's law calculator
- Effectiveness-NTU calculator
- Efficiency calculator
- Electrical mobility calculator
- Enthalpy calculator
- Evaporation rate calculator
- Gay-Lussac's law calculator
- Heat capacity calculator
- Heat transfer calculator
- Heat transfer coefficient calculator
- Ideal gas density calculator
- Ideal gas law calculator
- Isentropic flow calculator
- Joule heating calculator
- Latent heat calculator
- LMTD calculator
- Mean free path calculator
- Mixed air calculator
- Mixed air temperature calculator
- Newton's law of cooling calculator
- Nusselt number calculator
- Particles velocity calculator
- Coefficient of performance calculator
- Root mean square velocity calculator
- Sensible heat calculator
- Specific gas constant calculator
- Specific heat calculator
- Thermal conductivity calculator
- Thermal diffusivity calculator
- Thermal efficiency calculator
- Thermal energy calculator
- Thermal equilibrium calculator
- Thermal expansion calculator
- Thermal resistance calculator
- Combined gas law calculator
- Ton to kW converter
- Van der Waals equation calculator
- Water heating calculator
- Watts to heat calculator