Engineering Calculators: Gears, Torque, Stress and Weather
Engineering calculators for mechanical and environmental questions. Work out gear ratios and torque, stress and strain in a material, or how hot or cold the weather really feels.
They are for estimates and learning. Structural and safety-critical work needs a qualified engineer.
Gear Ratio CalculatorFind the gear ratio, output speed and output torque for one, two or three stages.Torque CalculatorFind torque from force and lever arm, or from power and rotational speed.Stress and Strain CalculatorFind stress, strain, elongation and Young's modulus for a bar under load.Dew Point CalculatorFind the dew point from temperature and humidity, or the humidity from the dew point.Thermal Expansion CalculatorFind how much a bar, pipe or beam grows or shrinks as the temperature changes.Pipe Flow Velocity CalculatorFind the flow rate, velocity or pipe diameter from the other two, with Reynolds number for water.Feels Like Temperature (Wind Chill and Heat Index)Find how hot or cold it feels from temperature, wind and humidity: wind chill when cold, heat index when hot.
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