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.