Physics
Solve physics problems with ease
Acceleration Calculator
Calculate acceleration from change in velocity and time.
Acoustic Intensity Level Calculator
Estimate sound intensity and decibel level at a distance from a point-like source with optional attenuation.
Average Speed Calculator
Calculate average speed from distance and time.
Ballistic Drag Estimator
Simulate projectile range with quadratic air drag, launch height, wind, mass, diameter, drag coefficient, and no-drag comparison.
Beam Deflection Calculator
Beam Deflection Calculator summarizes classical energy, work, and power relationships for mechanical systems.
Blackbody Radiation Calculator
Estimate radiated power and peak wavelength from temperature, area, and emissivity.
Buoyancy Force Calculator
Calculate buoyant force from fluid density, displaced volume, and gravity.
Capacitor Bank Calculator
Capacitor Bank Calculator combines DC and AC circuit quantities, impedance, power, and resonance.
Capacitor Charge Transient Calculator
Calculate RC time constant, capacitor voltage, charge percentage, and charging current at a selected time.
Capacitor Energy Calculator
Calculate energy and charge stored in a capacitor.
Carnot Efficiency Calculator
Carnot Efficiency Calculator estimates heat, useful work, waste heat, and entropy from thermodynamic inputs.
Centripetal Force Calculator
Calculate centripetal acceleration and force from mass, speed, and turn radius.
Circular Motion Calculator
Compute centripetal acceleration, angular speed, period, frequency, and force from any radius plus one motion input.
Collision Momentum Lab Calculator
Model a one-dimensional collision with restitution, final velocities, momentum check, and kinetic energy loss.
Constant-Acceleration Motion Calculator – Basic Kinematic Equations
Solve for missing displacement, velocity, acceleration, or time under constant acceleration. Enter four known variables and the result updates instantly.
Coulomb Force Calculator
Coulomb Force Calculator combines DC and AC circuit quantities, impedance, power, and resonance.
de Broglie Wavelength Calculator
de Broglie Wavelength Calculator links wave speed, photon energy, diffraction, and travel time in one optics-style calculation.
Density Calculator
Calculate density and specific volume from mass and volume.
Diffraction Grating Spectrometer Calculator
Calculate diffraction angle, screen position, maximum order, grating spacing, and angular dispersion.
Doppler Effect Calculator
Calculate observed frequency for moving source and observer in a medium.
Drag Force Calculator
Drag Force Calculator summarizes classical energy, work, and power relationships for mechanical systems.
Electrical Power Calculator
Calculate electrical power using voltage, current, and resistance relationships.
Entropy Change Calculator
Entropy Change Calculator estimates heat, useful work, waste heat, and entropy from thermodynamic inputs.
Equivalent Resistance Calculator
Compare four resistors in series and parallel with equivalent resistance, current, power, voltage drop, and conductance.
Escape Velocity Calculator
Estimate escape velocity from a body's mass and radius.
Free Fall Calculator
Estimate fall time and impact speed from height and gravity.
Friction Force Calculator
Calculate friction force from coefficient of friction and normal force.
Gravitational Force Calculator
Calculate Newtonian gravitational attraction between two masses at a given distance.
Gravitational Potential Energy Calculator
Calculate gravitational potential energy from mass, gravity, and height.
Heat Energy Calculator
Calculate heat energy from mass, specific heat capacity, and temperature change.
Heat Engine Work Calculator
Heat Engine Work Calculator estimates heat, useful work, waste heat, and entropy from thermodynamic inputs.
Hill Sphere Radius Calculator
Estimate a planet's Hill radius, conservative stable satellite zone, periapsis, and satellite safety ratio.
Hohmann Transfer Calculator
Estimate two-burn Hohmann transfer delta-v and transfer time between circular orbits around the same central body.
Hooke's Law Calculator
Calculate spring force and stored elastic energy from spring constant and displacement.
Hydrostatic Pressure Calculator
Calculate gauge and absolute pressure at depth in a fluid.
Impulse Calculator
Calculate impulse from average force and contact time.
Kinetic Energy Calculator
Calculate kinetic energy from mass and velocity.
Lens Diffraction Limit Calculator
Lens Diffraction Limit Calculator links wave speed, photon energy, diffraction, and travel time in one optics-style calculation.
Lorentz Force Calculator
Lorentz Force Calculator combines gravity, orbital motion, escape velocity, and relativistic timing approximations.
Magnetic Field Around Wire Calculator
Magnetic Field Around Wire Calculator combines gravity, orbital motion, escape velocity, and relativistic timing approximations.
Momentum Calculator
Calculate linear momentum and kinetic energy from mass and velocity.
Net Force & Acceleration Calculator
Calculate net force and acceleration from multiple forces using Newton's Second Law (F = ma).
Ohm's Law & Circuit Calculator
Calculate voltage, current, resistance, and power using Ohm's Law. Compute series and parallel resistance combinations.
Orbital Period Calculator
Estimate circular orbital period around a central mass.
Orbital Transfer Delta-v Calculator
Orbital Transfer Delta-v Calculator combines gravity, orbital motion, escape velocity, and relativistic timing approximations.
Pendulum Period Calculator
Estimate pendulum period with small-angle and amplitude-corrected approximations.
Photoelectric Effect Calculator
Photoelectric Effect Calculator links wave speed, photon energy, diffraction, and travel time in one optics-style calculation.
Pipe Flow Pressure Drop Calculator
Estimate pipe velocity, Reynolds number, Darcy-Weisbach pressure drop, and pumping power for a steady flow.
Pressure Calculator
Calculate pressure in pascals, kilopascals, and bar from force and area.
Projectile Motion Calculator – Range, Height & Time of Flight
Explore range, peak height, and flight time using launch speed, angle, initial height, and gravity.
Radioactive Decay / Half-Life Calculator
Calculate remaining radioactive material, decay fraction, and activity from initial amount, half-life, and elapsed time.
RC Time Constant Calculator
Calculate resistor-capacitor time constant, five-tau settling time, and cutoff frequency.
Relativistic Time Dilation Calculator
Relativistic Time Dilation Calculator combines gravity, orbital motion, escape velocity, and relativistic timing approximations.
Resistor Color Code Calculator
Calculate resistance and tolerance from 4-band or 5-band resistor color codes.
Reynolds Number Calculator
Estimate Reynolds number from density, speed, characteristic length, and dynamic viscosity.
RL Time Constant Calculator
Calculate inductor-resistor time constant and five-tau settling time.
RLC Damping Analyzer
Analyze a series RLC circuit using natural frequency, damping ratio, quality factor, and peak current estimate.
RLC Resonance Calculator
RLC Resonance Calculator combines DC and AC circuit quantities, impedance, power, and resonance.
Rocket Delta-v Calculator
Estimate rocket delta-v, mass ratio, average acceleration, and propellant fraction using exhaust velocity and vehicle masses.
Rotational Energy Calculator
Calculate angular velocity, rotational kinetic energy, angular impulse, and final speed after a torque pulse.
Snell's Law & Critical Angle Calculator
Find the refracted angle and check for total internal reflection between two media.
Solenoid Magnetic Energy Calculator
Estimate magnetic energy, field strength, flux, and energy density for a solenoid-like coil.
Sound Distance Calculator
Estimate distance from sound travel time and speed of sound.
Spring Potential Energy Calculator
Calculate stored energy in a spring from spring constant and displacement.
Standing Wave String Calculator
Calculate string wave speed, harmonic frequency, wavelength, fundamental tone, period, and node spacing.
Stress-Strain Calculator
Stress-Strain Calculator summarizes classical energy, work, and power relationships for mechanical systems.
Terminal Velocity Calculator
Terminal Velocity Calculator summarizes classical energy, work, and power relationships for mechanical systems.
Thermal Conduction Calculator
Thermal Conduction Calculator estimates heat, useful work, waste heat, and entropy from thermodynamic inputs.
Thermal Expansion Calculator
Estimate linear expansion from original length, coefficient, and temperature change.
Thermal Radiation Exchange Calculator
Estimate net radiative heat transfer from surface area, emissivity, surface temperature, and ambient temperature.
Thin Lens Equation Calculator
Calculate image distance and magnification for a thin lens.
Thin-Film Interference Calculator
Estimate optical path, phase cycles, film angle, and constructive or destructive film thickness.
Torque Calculator
Calculate torque from force, lever arm, and angle between the force and arm.
Transformer Efficiency Calculator
Estimate transformer output power, total losses, efficiency, and voltage ratio from load and loss assumptions.
Voltage Divider Calculator
Voltage Divider Calculator combines DC and AC circuit quantities, impedance, power, and resonance.
Wave Speed Calculator – Frequency, Wavelength & Period
Compute wave speed, frequency, wavelength, and period from two known quantities.
Wien Displacement Calculator
Wien Displacement Calculator links wave speed, photon energy, diffraction, and travel time in one optics-style calculation.
Work, Kinetic Energy, Potential Energy and Power Calculator – Fundamental Mechanics Equations
Calculate Work, Kinetic Energy, Potential Energy, and Power.