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
48
Topics: All Mechanics (114) Electricity (48)
48 results
Physics / Electricity

Capacitor Energy Calculator

Compute the energy stored in a capacitor from its capacitance and the voltage across it, using E = ½ · C · V². Reports s...

basic
10,777 4.3 1 min
Physics / Electricity

Inductor Energy Calculator

Compute the energy stored in an inductor from its inductance and the current through it, using E = ½ · L · I².

basic
17,530 4.5 1 min
Physics / Electricity

RL Time Constant Calculator

Compute the time constant τ = L / R of a series RL circuit, the time to reach 63 % of final current, and the rough cutof...

basic
16,532 5.0 1 min
Physics / Electricity

Wheatstone Bridge Calculator

Solve a balanced Wheatstone bridge for the unknown resistor R₄ from the three known resistors R₁, R₂, and R₃ using the b...

basic
6,617 4.7 1 min
Physics / Electricity

Voltage Divider Calculator

Compute the output voltage of a two-resistor voltage divider from the input voltage and the two resistor values.

basic
11,230 3.9 1 min
Physics / Electricity

Current Divider Calculator

Compute the current through one branch of a two-resistor parallel current divider from the total source current.

basic
10,086 4.3 1 min
Physics / Electricity

Battery Life Calculator

Estimate how long a battery will last from its capacity (mAh or Ah) and the load current draw, with a configurable real-...

basic
18,985 4.3 1 min
Physics / Electricity

Electric Power Calculator

Compute electric power from any two of voltage, current, or resistance using P = VI, P = I²R, and P = V²/R.

basic
25,027 4.3 1 min
Physics / Electricity

Capacitance Calculator

Compute the capacitance of a parallel-plate capacitor from plate area, plate separation, and the dielectric constant.

basic
12,524 4.1 1 min