Electrical, mechanical, and physics calculators — Ohm's Law, resistors, wire sizing, capacitors, projectile motion, torque, gears, and beam loads.
Enter any two of voltage, current, resistance, or power to solve the rest.
Decode 4, 5, or 6-band color codes to resistance — or reverse.
Total resistance for series, parallel, or mixed resistor networks.
Cable size in mm² or AWG based on current, length, and voltage drop.
Series/parallel capacitance, stored charge, and energy.
Range, max height, and flight time with trajectory visualization.
Torque from force and lever arm, or rotational power from torque and RPM.
Ratio from tooth counts with output speed and torque.
Single/three-phase power, HP conversion, and running cost estimates.
Simply supported beam deflection and bending moment — educational reference.