HomeCalculatorsEngineering & Physics CalculatorsBtu CalculatorBtu Calculator Calculate your BTU, AC, and heating needs with our responsive tool. Enter your room details for quick, accurate results!Basic BTUAC SizingHeating SizingBasic Room BTU Calculation Room Length (ft) Room Width (ft) Ceiling Height (ft) Insulation Quality PoorAverageExcellent Number of Occupants Sunlight Exposure MinimalModerateHigh CalculateCalculationValueAir Conditioner Sizing Total Area (sq ft) Ceiling Height (ft) Climate Zone CoolModerateHot CalculateCalculationValueHeating (Furnace/Boiler) Sizing Home Area (sq ft) Ceiling Height (ft) Outdoor Winter Temp (°F) Desired Indoor Temp (°F) CalculateCalculationValue More ToolsBAC CalculatorBeam Deflection CalculatorBending Moment CalculatorCapacitor Code CalculatorDew Point CalculatorFlow Rate CalculatorGas Law Calculator (Ideal Gas, etc.)Heat Index CalculatorHeat Loss CalculatorHeat Transfer CalculatorInductive Reactance CalculatorInductor Code CalculatorKirchhoff’s Voltage/ Current Law CalculatorOhms Law CalculatorPipe Pressure Drop CalculatorPump Head CalculatorResistor Color Code CalculatorResonant Frequency CalculatorRF Attenuation CalculatorRLC Circuit CalculatorShear Stress CalculatorThermal Expansion CalculatorTorque CalculatorVoltage Drop Calculator
