BTU Calculator: AC & HVAC

Size your AC or heating unit correctly - no more overpaying or sweating. Takes room dimensions, ceiling height, insulation, sun exposure, occupants, and kitchen to recommend the right BTU and tonnage. KEY FEATURES: * Adjusted BTU Recommendation - Base BTU adjusted for conditions * Tonnage Rating - Unit size in tons for HVAC shopping * Adjustment Breakdown - How each factor affects BTU needs * Imperial & Metric - Feet or meters; BTU or watts * Multiple Factors - Insulation, sun, occupants, kitchen Free to download. No sign-up. No paywall. Works offline. By Blas Apps - simple calculators that do one thing perfectly.