Thermodynamics and heat Calculators

Biot Number Calculator The Biot number calculator helps you compute the Biot number that determines how quickly heat transfers from the surface of a body to its interior. Boltzmann Factor Calculator The Boltzmann factor calculator computes a relative probability of two states of a system at thermal equilibrium. Boyle's Law Calculator Use this Boyle's law calculator to estimate a gas's pressure and volume in an isothermal process. BTU to Tons Converter Convert BTU per hour to tons of refrigeration. A refrigeration ton is a rate of cooling, defined as exactly 12,000 BTU per hour — it is a power, not a mass. Calorimetry Calculator With this calorimetry calculator, you can quickly solve constant-pressure calorimetry problems. Carnot Efficiency Calculator The Carnot efficiency calculator finds the efficiency of the Carnot heat engine. Charles' Law Calculator The Charles' law calculator finds a gas's temperature and volume in an isobaric process. Coefficient of Performance Calculator This coefficient of performance calculator determines the coefficient of performance of reversible and irreversible refrigerators and heat pumps. Combined Gas Law Calculator Try this combined gas law calculator to determine the basic properties of the most common thermodynamic processes. Compressibility Factor Calculator Use the compressibility factor calculator to chart the behavior of non-ideal gases. Curie's Law Calculator Check the Curie's law calculator to calculate the magnetization of paramagnetic materials, including its dependence on temperature. Effectiveness-NTU Calculator Use the effectiveness-NTU calculator to perform either a design calculation or a performance assessment of a heat exchanger. Efficiency Calculator The efficiency calculator finds the ratio of energy output to energy input. Electrical Mobility Calculator The electrical mobility calculator explores the Einstein-Smoluchowski relation connecting the random motion of electrons in a wire to their mobility in the presence of a voltage difference. Enthalpy Calculator The enthalpy calculator lets you find the enthalpy of any endothermic or exothermic reaction. Evaporation Rate Calculator Calculate how quickly a body of water will evaporate given wind speed and humidity using the evaporation rate calculator. Gay-Lussac's Law Calculator With Gay-Lussac's law calculator, you can quickly work out the pressure and temperature values in an isochoric process. Heat Capacity Calculator Determine the heat capacity of a body using Omni's heat capacity calculator. Heat Transfer Calculator Calculate heat transfer rates as well as rates for both conduction and convection with this easy-to-use heat transfer calculator. Heat Transfer Coefficient Calculator Estimate the overall heat transfer coefficient for a wall using the heat transfer coefficient calculator. Ideal Gas Density Calculator Use this tool to calculate the density of an ideal gas using the ideal gas law. Ideal Gas Law Calculator Use the ideal gas law calculator to find the pressure, volume, and temperature of a gas. Isentropic Flow Calculator Determine the properties of fluid flow during an isentropic process using the Isentropic flow calculator. Joule Heating Calculator Use our Joule heating calculator to compute the heat generated by a current-carrying cable. Latent Heat Calculator The latent heat calculator computes the energy released or absorbed during a phase transition like melting or vaporizing. LMTD Calculator – Log Mean Temperature Difference Determine the logarithmic mean temperature difference using the LMTD calculator. Mean Free Path Calculator The mean free path calculator lets you find the mean free path of any particle in an ideal gas. Mixed Air Calculator Use this mixed air calculator to determine the properties of the mixed air stream without using a psychrometric chart. Mixed Air Temperature Calculator The mixed air temperature calculator gives you the total temperature of two gases with different temperatures and concentrations. Newton's Law of Cooling Calculator This Newton's law of cooling calculator lets you find the time it takes for different objects to cool down. Nusselt Number Calculator The handy Nusselt number calculator shows you the relation between the length of the convection transfer region, the convection coefficient, and the thermal conductivity of the fluid. Particles Velocity Calculator Use the particles velocity calculator to calculate the average velocity of gas particles. Root Mean Square Velocity Calculator Use the root mean square velocity calculator to find the velocity of a particle in a gas based on the kinetic theory of gases. Sensible Heat Calculator Determine the heat required to change an object's temperature using our sensible heat calculator. Specific Gas Constant Calculator Determine the properties of a gas using the specific gas constant calculator. Specific Heat Calculator Find out how much heat is required to warm up a sample with the specific heat calculator. Thermal Conductivity Calculator The thermal conductivity calculator lets you calculate the thermal conductivity of any material or the heat flux through any object. Thermal Diffusivity Calculator Estimate the rate of transfer of heat of a material or a substance using the thermal diffusivity calculator. Thermal Efficiency Calculator Use this tool to calculate the thermal efficiency of any heat engine. Thermal Energy Calculator With the thermal energy calculator, you can estimate the kinetic energy of molecules in an ideal gas. Thermal Equilibrium Calculator The thermal equilibrium calculator helps you determine the final temperature at which two objects or systems are in thermal equilibrium. Thermal Expansion Calculator The thermal expansion calculator finds the change in length or volume of a material subject to extreme temperatures. Thermal Resistance Calculator Use our thermal resistance calculator to find the thermal resistance of an object for three different shapes: a plate, hollow cylinder, and hollow sphere. Ton to kW Converter Convert tons of refrigeration to kilowatts. One ton is exactly 12,000 BTU per hour, or 3.5169 kW. Van der Waals Equation Calculator Van der Waals equation calculator finds the relation between volume, pressure, and temperature in a real gas. Water Heating Calculator Use the water heating calculator to determine how much time and energy you'll need to increase the temperature of the water. Watts to Heat Calculator Use the watts to heat calculator to know the power you need to heat a particular substance.