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!
Arc Length Calculator — Geometry, Calculus & Parametric Curves
Free arc length calculator — find arc length of circle arcs (s=rθ), functions (∫√(1+f'²)dx), parametric and polar curves. Also finds radius from arc length using the sagitta-chord formula. Full step-by-step working
Use Calculator →Standard Atmosphere Calculator — Density Altitude, Pressure & Temperature vs Altitude
Standard atmosphere calculator — 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 →Air Properties Calculator — Molar Mass, Specific Heat, Viscosity & Thermal Conductivity
Air properties calculator — find density, dynamic viscosity, kinematic viscosity, specific heat (cp, cv), thermal conductivity, Prandtl number, and speed of sound at any temperature. Includes molar mass of air (28.9647 g/mol) and a complete reference table from −50°C to 1000°C
Use Calculator →Density Calculator — ρ = m/V, Cylinder, Water Displacement & Reference Table
Free density calculator — solve ρ=m/V for density, mass, or volume, find density of cylinders and spheres, use water displacement, and look up water density in kg/m³, lb/ft³, g/cm³, and lb/gal at any temperature
Use Calculator →Uniform Circular Motion Calculator — Period, Centripetal Force & Acceleration
Free uniform circular motion calculator — solve for period, frequency, angular velocity, centripetal acceleration, centripetal force, and normal force. Full UCM formula reference and AP Physics 1 worked examples
Use Calculator →Force Calculator – F = ma, Net Force, Applied Force & Newton’s Laws
Free force calculator 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. Full step-by-step working
Use Calculator →Gravitational Potential Energy Calculator – GPE = mgh Formula & Examples
Free gravitational potential energy calculator - solve GPE = mgh for any variable, calculate ΔGPE between two heights, compute gravitational force with Newton's law. All planets included with step-by-step working
Use Calculator →Acceleration Calculator – Average Acceleration Formula & Equations
Free average acceleration calculator - solve a = (vf−vi)/t, find acceleration from distance and time, acceleration without time using vf²=vi²+2ad, and centripetal acceleration. Full step-by-step working
Use Calculator →Velocity Calculator – Initial Velocity, Final Velocity & Average Velocity
Free velocity calculator — solve v=d/t, vf=vi+at, vf²=vi²+2ad, average velocity, and velocity from kinetic energy. Shows all unit conversions (m/s, km/h, mph, ft/s, knots) simultaneously with full step-by-step working
Use Calculator →Exponential Growth and Decay Calculator – Formula, Graph & Steps
Free exponential growth and decay calculator - solve A = A₀(1+r)ᵗ and A = A₀eʳᵗ for any unknown. Generates values table, interactive graph, doubling time, half-life, and full step-by-step working
Use Calculator →Projectile Motion Calculator – Range, Height, Time & Velocity Solver
Free projectile motion calculator solve range, maximum height, time of flight and velocity for any two known inputs. Interactive animated trajectory, planet gravity selector, and step-by-step working.
Use Calculator →Rotational Kinematics Calculator – Angular Motion Equations & Formulas
Complete rotational kinematics equations calculator. Solve ? = ?0 + at, ? = ?0t + ½at², ?² = ?0² + 2a? for any unknown. Includes angular-to-linear converter, t = Ia dynamics, period & frequency — with full formula reference and worked examples
Use Calculator →Moment of Inertia Calculator – Rectangle, Circle, Rod, Sphere & All Shapes
moment of inertia calculator 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 →Pipe 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 →De Broglie Wavelength Calculator – Formula, Equation & Electron Wavelength
de Broglie wavelength calculator - find the matter wavelength of any particle using λ = h/mv. Includes electron wavelength from voltage, particle comparison, and relativistic calculator.
Use Calculator →Visible Light Spectrum – Wavelengths, Frequencies & Colors of Visible Light
wavelengths and frequencies of all colors from violet (380 nm) to red (700 nm). Interactive spectrum tool, color lookup calculator, and reference tables.
Use Calculator →Wavelength to Frequency Calculator – Convert nm, m & Hz Instantly
wavelength to frequency calculator - 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 →Frequency to Period Calculator – Convert Hz to Seconds, ms & ns Instantly
frequency to period calculator - convert Hz to seconds, milliseconds, microseconds and nanoseconds instantly. Includes period to frequency converter, reference table, and step-by-step examples.
Use Calculator →Heat Transfer Coefficient Calculator | Convection, Film & Overall h Values
calculate convective heat transfer rate, overall U value, and h from Nusselt number. Includes reference values for air and water with unit converter.
Use Calculator →Psychrometric Calculator | Wet Bulb & Dry Bulb Temperature Calculator
Use our free Wet Bulb Calculator to find relative humidity, dew point, and psychrometric values instantly. Enter dry bulb & wet bulb temperature and get step-by-step results. Perfect for students & engineers
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