Calculators

Calculates the capacitance of various capacitor configurations.

Calculates the focal length, object distance, or image distance for a thin lens using the thin lens equation: 1/f = 1/do + 1/di.

Calculates the rotational equivalent of force, causing an object to rotate (τ = rF sin θ).

Calculates the boiling point of water at a given altitude, taking into account the decrease in atmospheric pressure with increasing altitude.

This calculator illustrates Heisenberg's Uncertainty Principle, which states that the more precisely the position of a particle is determined, the less precisely its momentum can be known, and vice versa.

Calculates the total equivalent resistance of resistors connected end-to-end.

Calculates the change in frequency of a wave (sound or light) due to relative motion between the source and observer.

Calculates voltage, current, or resistance in an electrical circuit using Ohm's Law (V=IR).

Calculates the maximum theoretical efficiency of a heat engine operating between two temperatures.

Converts between different units used in radio frequency engineering, including dBm, Watts, and Volts.