Mini-Split AC BTU Calculator (By Ceiling Height & Climate Zone)

Estimate ductless mini-split AC and heat pump tonnage / BTUs for rooms.

Interactive Material & Cost Estimator

Coverage Rate Mode • BTUs

1. Select Project Area Shape

Length (Feet)

Width (Feet)

Waste / Cut / Compaction Buffer

2. Select Package / Unit Size

Price / Unit ($)

Contractor / Bulk ($)

Delivery ($)

Estimated Material Needed 200 sq ft

Net + Buffer Area 2.04 55.0 base sq ft

Coverage Per Package 2.75 sq ft per unit (standard)

Total Units / Packages to Buy 110 bags

Waste Buffer Included ~1.96 pallets

Estimated Project Material Cost Best Value

Retail Package Total $547.80 Before local sales tax

With Delivery / Bulk $191.08 Includes delivery

Instant pre-calculated material estimates for common US residential project sizes before compaction buffer:

Typical US Project	Area	Depth	Volume	Weight	Store Bags
Master Bedroom / Studio (500 sq ft)	500 sq ft	9 ft ceilings	12,000 BTUs	1.0 Ton	12,000 BTU Unit

Required BTUs = (Area Sq Ft × 25) × Ceiling & Climate Multiplier

Calculates necessary cooling and heating BTU capacity for ductless inverter heat pump mini-split systems.

Never oversize a mini-split massively; an oversized inverter unit will short-cycle, turning on and off too fast to properly dehumidify the room.

Typically 12,000 BTUs (1 Ton) for standard insulation and 8-9 ft ceilings.