Motion, force, energy, electricity, waves and thermodynamics.
20 calculators available
Calculate electricity cost for any appliance based on usage and rates.
Calculate speed, distance, or time given the other two values.
Calculate density, mass, or volume using the density formula.
Calculate radioactive decay, remaining quantity, and half-life for any substance.
Calculate dew point temperature from air temperature and relative humidity.
Calculate engine horsepower from trap speed and vehicle weight at the drag strip.
Calculate the "feels like" temperature based on air temperature and humidity.
Convert between horsepower, kilowatts, and torque for engines and motors.
Calculate mass from density and volume, or convert between mass units.
Calculate voltage, current, resistance, and power using Ohm's Law.
Decode resistor color bands to find resistance value and tolerance.
Calculate voltage drop across wire runs for electrical circuit design.
Calculate the wind chill "feels like" temperature from air temperature and wind speed.
Calculate force, mass or acceleration using Newton’s second law, F = ma.
Calculate pressure, force or area, with conversion between pascals, bar, psi and atmospheres.
Calculate velocity, distance or time from the other two values.
Calculate momentum, mass or velocity using p = mv.
Calculate kinetic energy, mass or velocity using KE = ½mv².
Calculate torque, lever arm or force, including the angle between them.
Calculate fall time, drop height and impact speed under gravity.
