🔥 Thermodynamics & Fluids Calculators
Heat, gases, engines, pressure, buoyancy and fluid flow. Browse 35 free thermodynamics & fluids calculators, each with the formula, a worked example and an interactive chart.
Specific Heat Capacity CalculatorCalculate heat needed to change a substance's temperature.Latent Heat CalculatorFind energy to melt or vaporise a substance.Mixing Temperature (Calorimetry) CalculatorFind the final temperature when two amounts of water mix.Temperature ConverterConvert between Celsius, Fahrenheit and Kelvin.Ideal Gas Law (PV = nRT) CalculatorFind pressure of an ideal gas from moles, temperature and volume.Combined Gas Law CalculatorFind the final pressure of a gas when volume and temperature change.Boyle's Law CalculatorCompute volume after a pressure change at constant temperature.Charles's Law CalculatorCompute gas volume after a temperature change at constant pressure.Gas Density CalculatorFind density of a gas from molar mass, pressure and temperature.Thermal Expansion CalculatorCalculate how much a solid expands when heated.Heat Conduction Rate CalculatorCalculate heat flow through a wall or plate.Radiation Power (Stefan–Boltzmann) CalculatorFind power radiated by a hot object.Carnot Efficiency CalculatorFind the maximum efficiency of a heat engine.Heat Engine Work and Heat Rejected CalculatorFind work and exhausted heat given input heat and efficiency.Heat Pump and Refrigerator COP CalculatorCompute ideal coefficient of performance for heating and cooling.Entropy Change CalculatorFind entropy change from heat transfer at a temperature.Isothermal Gas Work CalculatorWork done by an ideal gas expanding at constant temperature.Adiabatic Process CalculatorFind final temperature and pressure after adiabatic compression or expansion.First Law of Thermodynamics CalculatorFind change in internal energy from heat and work.Reynolds Number CalculatorDetermine whether pipe flow is laminar or turbulent.Bernoulli Equation CalculatorFind pressure change when fluid speed changes between two points.Continuity Equation CalculatorFind fluid speed in a pipe after a change in diameter.Hydrostatic Pressure CalculatorFind pressure at a depth in a fluid.Buoyancy and Flotation CalculatorCalculate buoyant force and whether an object floats.Volumetric Flow Rate CalculatorCompute flow rate from pipe size and fluid speed.Poiseuille Flow CalculatorFlow rate for viscous fluid through a narrow tube.Torricelli's Law CalculatorFind speed of water leaving a hole in a tank.Hydraulic Press CalculatorFind output force of a hydraulic lift.Dew Point CalculatorEstimate dew point from air temperature and humidity.Heat Index CalculatorEstimate the apparent temperature from heat and humidity.Wind Chill CalculatorFind how cold the wind makes the air feel.Time to Boil Water CalculatorEstimate time for a heater to bring water to a boil.Thermal Resistance (R-Value) CalculatorCombine layers to find total R-value and U-value.Specific Gravity CalculatorFind specific gravity of a substance relative to water.Gas Kinetic Speed CalculatorFind RMS speed of gas molecules.
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