Science calculators

Physics, chemistry, and engineering calculators.

• Density Calculator Calculate density, mass, or volume given the other two. Pick what's unknown and enter the rest, the calculator returns the missing value in standard units.
• Ohm's Law Calculator Solve Ohm's Law (V = I × R) for the missing variable. Pick what's unknown, enter the other two values, and the calculator returns the result and power.
• Speed, Distance, Time Calculator Solve speed = distance / time for any variable. Pick what you need, enter the other two, and the calculator returns the missing value with unit options.