Science Calculators
Ohm's Law and other physics tools — 6 calculators available.
Ohm's Law Calculator
Solve V=IR for Voltage, Current, or Resistance, plus Power
Use CalculatorPower Calculator
Solve P=VI, plus energy usage and electricity cost
Use CalculatorSpeed, Distance & Time Calculator
Solve for any of the three, across mph/km/h/m/s
Use CalculatorDensity Calculator
Mass, volume, or density, with material comparisons
Use CalculatorPressure Calculator
Force, area, or pressure across 6 pressure units
Use CalculatorForce Calculator
Newton's Second Law: force, mass, or acceleration
Use CalculatorAbout Our Science Calculators
Solve physics and electrical problems with free science calculators. Use Ohm's Law, calculate electrical power and running costs, solve speed, distance and time problems, and work out density, pressure and force. Each calculator supports common unit conversions and shows the formula it uses.