Physics Calculators
Professional tools for Physics Calculators
Our Physics Calculators collection covers mechanics, energy, electricity, waves, thermodynamics, and modern physics. Whether you need to calculate velocity, solve circuit problems, or understand projectile motion, our 110 free physics calculators give you instant answers with complete step-by-step solutions for every physics concept!
Ideal Gas Law Calculator β PV=nRT, Combined Gas Law
use the combined gas law (Boyle's, Charles's, Gay-Lussac's), find molar mass of unknown gases, and compare ideal vs real gas with Van der Waals equation.
Use Calculator βPressure Calculator β P=F/A, Hydrostatic, Absolute vs Gauge
compute P=F/A (force per area), hydrostatic pressure P=Οgh at any fluid depth, convert between absolute and gauge pressure, find pressure altitude with ISA formula, and convert all pressure units (Pa, psi, bar, atm, mmHg)
Use Calculator βFree Fall Calculator β Distance, Time, Velocity & Terminal Velocity
compute fall time, distance, and velocity using v=gt, d=Β½gtΒ², and vΒ²=2gd. Includes terminal velocity calculator, reference table for falls from 10ft to 30,000ft, and comparison with/without air resistance
Use Calculator βDoppler Effect Calculator β Frequency, Shift & Doppler Equation
compute observed frequency using f'=f(v+v_o)/(v+v_s) for sound or the relativistic formula for light. Includes sign convention guide, ambulance example, redshift calculator, and animated wavefront simulation
Use Calculator βBuoyancy Calculator β Buoyant Force, Float or Sink & Water Displacement
Calculate buoyant force using Archimedes' principle (F=ΟVg). Find whether an object floats or sinks, apparent weight in fluid, and fluid density from measurements.
Use Calculator βPhoton Energy Calculator β E=hf, Wavelength to Energy
convert between photon energy (Joules, eV), frequency (Hz to THz), wavelength (nm, ΞΌm, Γ ), and wavenumber (cmβ»ΒΉ). Uses E=hf and E=hc/Ξ» with full step-by-step working and EM spectrum classification.
Use Calculator βArc Length Calculator β Geometry, Calculus & Parametric Curves
find arc length of circle arcs (s=rΞΈ), functions (β«β(1+f'Β²)dx), parametric and polar curves. Also finds radius from arc length using the sagitta-chord formula.
Use Calculator βStandard Atmosphere Calculator β Density Altitude, Pressure & Temperature
Standard atmosphere calculator β find temperature, pressure, density, and speed of sound at any altitude using the ISA model. Includes density altitude calculator, pressure altitude converter, and full ISA reference table from sea level to 80km
Use Calculator βAir Properties Calculator β Density, Viscosity & Thermal Conductivity vs Temp
Calculate thermophysical properties of dry air at any temperature and pressure: density, dynamic viscosity, kinematic viscosity, thermal conductivity, and Prandtl number.
Use Calculator βDensity Calculator β Cylinder, Water Displacement & Reference Table
solve Ο=m/V for density, mass, or volume, find density of cylinders and spheres, use water displacement, and look up water density in kg/mΒ³, lb/ftΒ³, g/cmΒ³, and lb/gal at any temperature
Use Calculator βForce Calculator – F = ma, Net Force, Applied Force & Newton’s Laws
solve F = ma for force, mass or acceleration, calculate net force from multiple forces, find applied force with friction, and compute average force using impulse-momentum theorem.
Use Calculator βGravitational Potential Energy Calculator – GPE = mgh Formula & Examples
solve GPE = mgh for any variable, calculate ΞGPE between two heights, compute gravitational force with Newton's law. All planets included.
Use Calculator βAcceleration Calculator – Average Acceleration Formula & Equations
solve a = (vfβvi)/t, find acceleration from distance and time, acceleration without time using vfΒ²=viΒ²+2ad, and centripetal acceleration.
Use Calculator βVelocity Calculator – Initial Velocity, Final Velocity & Average Velocity
Calculate velocity, speed, acceleration, displacement, and time using kinematic equations. Covers average velocity, instantaneous velocity, and relative velocity with full solutions.
Use Calculator βExponential Growth and Decay Calculator – Formula, Graph & Steps
solve A = Aβ(1+r)α΅ and A = AβeΚ³α΅ for any unknown. Generates values table, interactive graph, doubling time, half-life, and full.
Use Calculator βProjectile Motion Calculator – Range, Height, Time & Velocity Solver
solve range, maximum height, time of flight and velocity for any two known inputs. Interactive animated trajectory, planet gravity selector,
Use Calculator βRotational Kinematics Calculator – Angular Motion Equations
Solve ? = ?0 + at, ? = ?0t + Β½atΒ², ?Β² = ?0Β² + 2a? for any unknown. Includes angular-to-linear converter, t = Ia dynamics, period & frequency with full formula reference and worked examples.
Use Calculator βMoment of Inertia Calculator – Rectangle, Circle, Rod, Sphere
find mass MOI and area MOI for rectangle, circle, rod, sphere, cylinder, ring, cone, and hollow sections. Includes section modulus, parallel axis theorem, and full formula reference tables.
Use Calculator βPipe Flow Calculator – GPM, Flow Rate by Pipe Size, Pressure & Diameter
pipe flow calculator find GPM by pipe size and pressure using Hazen-Williams. Includes PSI to GPM converter, 1/2 inch and 1 inch pipe flow tables, gravity flow and laminar flow calculators.
Use Calculator βWavelength to Frequency Calculator – Convert nm, m & Hz Instantly
convert nm to Hz, Hz to nm, meters to Hz, and MHz to nm instantly. Includes electromagnetic spectrum chart and photon energy calculator.
Use Calculator β Free chemistry, physics, biology & math calculators with step-by-step solutions. Trusted by 1000+ students. Solve any science problem instantly!
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