Most Popular Calculators
Our Parallel Resistor Calculator lets you instantly deduce the equivalent resistance from all resistors connected in parallel, according to Ohm's law.
Instantly determine the force in a spring (stretched or compressed) according to Hooke's Law using our spring force (Hooke's Law) calculator.
Determine the apparent change in the frequency of a wave caused by relative motion between the source of the wave and the observer using our Doppler Effect Calculator.
Work and Power
Calculate the Work performed by a certain mechanical device of a certain Power in a given amount of time using our Work and Power Calculator. It's FREE.