Physics calculators

Kinematics, dynamics, and classical-physics shortcuts.

Solve the common physics textbook calculations — velocity, acceleration, force, and energy — with units correctly tracked end to end.

Calculators

372

Topics: All Mechanics (114) Electricity (48)

Physics / Electricity

Inductive Reactance Calculator

Compute the inductive reactance X_L of an inductor at a given AC frequency: X_L = 2π · f · L. Reports the impedance magn...

basic

6,442 4.2 1 min

Physics

Linear Thermal Expansion from Coefficient and ΔT Calculator

Calculates the change in length due to thermal expansion: ΔL = α · L₀ · ΔT, where α is the linear expansion coefficient,...

basic

4,504 4.5 1 min

Physics

Hydrostatic Pressure at Depth in a Static Fluid Calculator

Compute the absolute pressure at depth h in a static fluid: P = P₀ + ρgh, where P₀ is the surface pressure (default 101...

basic

2,083 3.8 1 min

Physics / Electricity

RC Low-Pass Cutoff Frequency Calculator

Compute the −3 dB cutoff frequency of an RC low-pass (or high-pass) filter from the resistor and capacitor values, plus...

basic

763 4.8 1 min

Physics / Mechanics

Rolling Resistance Force from Load and Coefficient Calculator

Computes rolling resistance force F_r = C_rr · N, where C_rr is the dimensionless rolling resistance coefficient and N i...

basic

23,745 4.6 1 min

Physics

Carnot Engine Efficiency Calculator

Compute the Carnot (theoretical maximum) efficiency of a heat engine operating between two thermal reservoirs from their...

basic

22,681 4.0 1 min

Physics

Heisenberg Uncertainty Calculator

Compute the minimum uncertainty in momentum (Δp) and velocity (Δv) of a particle of given mass when its position is cons...

basic

21,956 4.8 1 min

Physics / Electricity

Faraday Induced EMF from Flux Change Calculator

Compute the average induced EMF in a coil of N turns when the magnetic flux changes from Φ₁ to Φ₂ over time Δt: ε = −N ·...

basic

20,900 4.5 1 min

Physics

Archimedes Buoyancy Force Calculator

Compute the buoyant force on an object submerged (or partially submerged) in a fluid using F_b = ρ_fluid · V · g, and th...

basic

20,092 4.5 1 min

Physics / Mechanics

Apparent Weight in an Accelerating Elevator Calculator

Compute the apparent weight (the normal force read by a bathroom scale) of a person in an elevator that is accelerating:...

basic

15,039 4.4 1 min

Physics / Electricity

Antenna Gain from Aperture Calculator

Compute the gain of an aperture antenna from its physical area, aperture efficiency, and the operating wavelength: G = 4...

basic

12,956 4.4 1 min

Physics / Electricity

Three Parallel Resistors Calculator

Compute the equivalent resistance of three resistors connected in parallel: 1 / R_eq = 1/R₁ + 1/R₂ + 1/R₃. Reports R_eq...

basic

12,134 4.9 1 min

Physics / Electricity

Cyclotron Frequency from Charge, Mass, and Field Calculator

Compute the cyclotron (gyromagnetic) frequency of a charged particle moving perpendicular to a uniform magnetic field B:...

basic

11,742 4.9 1 min

Physics / Mechanics

Compound (Physical) Pendulum Period Calculator

Compute the small-amplitude oscillation period of a compound (physical) pendulum: a rigid body that rotates about a hori...

basic

11,255 4.4 1 min

Physics / Electricity

RL Series Circuit Current Build-Up Calculator

Compute the transient current in a series RL circuit driven by a DC source after the switch closes: i(t) = (V/R) · (1 −...

basic

10,571 4.5 1 min

Physics

Mean Free Path of an Ideal-Gas Molecule Calculator

Compute the mean free path λ — the average distance an ideal-gas molecule travels between collisions — from temperature,...

basic

9,931 4.6 1 min

Physics / Mechanics

Wedge Mechanical Advantage Calculator

Compute the ideal mechanical advantage of a wedge from its slope length L (the distance the wedge is driven) and its thi...

basic

8,639 4.3 1 min

Physics / Electricity

Magnetic Dipole Torque from Moment and Field Calculator

Compute the torque on a magnetic dipole (current loop, bar magnet) of magnetic moment m placed in an external uniform ma...

basic

7,606 4.4 1 min

Physics

Half-Value Layer from Linear Attenuation Coefficient Calculator

Compute the half-value layer (HVL) — the thickness of a shielding material that reduces a monoenergetic beam of x-rays o...

basic

7,083 4.3 1 min

Physics

Electric Field from a Point Charge at a Given Distance Calculator

Compute the magnitude of the electric field E due to a point charge q at distance r: E = kq/r², with k = 8.98755×10⁹ N·m...

basic

6,514 4.4 1 min

Physics / Mechanics

Banked-Curve No-Friction Speed Calculator

Compute the design speed (no friction needed) at which a vehicle can traverse a banked curve of given radius and bank an...

basic

2,784 4.8 1 min

Physics

Refrigerator / Heat-Pump COP Calculator

Compute the Carnot-limit coefficient of performance for an ideal refrigerator (COP_ref = T_c / (T_h − T_c)) and an ideal...

basic

700 4.7 1 min

Physics / Electricity

Series RLC Impedance at a Given Frequency Calculator

Compute the impedance, inductive reactance X_L = ωL, capacitive reactance X_C = 1 / (ωC), and the phase angle φ of a ser...

basic

23,747 4.9 1 min

Physics / Electricity

Ideal Transformer Current Balance Calculator

Compute the secondary (load) current of an ideal transformer from the primary current and the turns ratio, and verify po...

basic

23,404 4.3 1 min

Showing 49 to 72 of 372 results

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Solve the common physics textbook calculations — velocity, acceleration, force, and energy — with units correctly tracked end to end.

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Physics calculators

Inductive Reactance Calculator

Linear Thermal Expansion from Coefficient and ΔT Calculator

Hydrostatic Pressure at Depth in a Static Fluid Calculator

RC Low-Pass Cutoff Frequency Calculator

Rolling Resistance Force from Load and Coefficient Calculator

Carnot Engine Efficiency Calculator

Heisenberg Uncertainty Calculator

Faraday Induced EMF from Flux Change Calculator

Archimedes Buoyancy Force Calculator

Apparent Weight in an Accelerating Elevator Calculator

Antenna Gain from Aperture Calculator

Three Parallel Resistors Calculator

Cyclotron Frequency from Charge, Mass, and Field Calculator

Compound (Physical) Pendulum Period Calculator

RL Series Circuit Current Build-Up Calculator

Mean Free Path of an Ideal-Gas Molecule Calculator

Wedge Mechanical Advantage Calculator

Magnetic Dipole Torque from Moment and Field Calculator

Half-Value Layer from Linear Attenuation Coefficient Calculator

Electric Field from a Point Charge at a Given Distance Calculator

Banked-Curve No-Friction Speed Calculator

Refrigerator / Heat-Pump COP Calculator

Series RLC Impedance at a Given Frequency Calculator

Ideal Transformer Current Balance Calculator