🔬Science & Engineering Tools (5)
Electrical, chemistry and physics calculators for students and hobbyists.
From sizing a wire run with the Voltage Drop Calculator to working out a solution's concentration with the Molarity Calculator, these tools cover common electrical, chemistry and physics calculations using standard formulas and reference tables. They're built for students, hobbyists and DIYers, and every calculation runs instantly in your browser.
Voltage Drop Calculator
Calculate voltage drop across a wire run from current, length and wire gauge.
Ohm's Law Calculator
Solve for voltage, current or resistance from the other two, plus power.
Molarity Calculator
Calculate the molarity of a solution from the solute's mass, molar mass and solution volume.