BTU Calculator
Estimate the cooling capacity a room actually needs, so you can sanity-check any system size you are quoted.
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Everything updates as you change it. Nothing is sent anywhere.
Desert heat load runs about 25% above the national sizing rule of thumb.
6,000 BTU
- Room area
- 224 ft²
- Roughly equivalent to
- 0.5 tons
Single-zone mini split
A 9,000 BTU (0.75 ton) ductless head covers this comfortably. Common for a converted garage, casita or home office.
Want this checked against your whole house?
Room-by-room math is a good sanity check. Sizing a system you are about to buy needs a load calculation on the entire home, and we will run one without sending a salesperson.
This is a room-level estimate using standard sizing rules plus a regional climate adjustment. It is not a Manual J load calculation and should not be used on its own to buy equipment. Real sizing depends on insulation, window glazing, duct condition, infiltration and orientation.
What this usually leads to
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Ready for an Honest Number?
Run a real load calculation online, or call the team in your state. Flat-rate pricing either way, and nobody shows up to sell you something bigger than you need.
California team: (818) 690-7951 · Text us: (818) 489-2826