Heat Transfer Coefficient Converter
Easily convert heat transfer coefficients between common units such as W/m²K and BTU/(h·ft²·°F). A vital tool for engineering and thermal calculations.
energy efficiency
Thermal Resistance Converter
A free online tool for professionals and DIYers to quickly convert between thermal resistance (R-value) and thermal transmittance (U-value) for insulation materials.
BTU Calculator
Use our free BTU calculator to determine the perfect air conditioner or heating system size for any room. Get accurate cooling and heating requirements instantly.