Cheapest AC units by BTU - Air conditioner price tracker
Window Air Conditioners
Portable Air Conditioners
| $/BTU | Price | BTU | Model | |
|---|---|---|---|---|
| $0.0286 | $400.00 | 14,000 | 14,000 BTU Dreo Portable Air Conditioners, AC for Bedroom with Drai... | View Price on Amazon |
| $0.0298 | $401.84 | 13,500 | 13,500 BTU Amazon Basics 4-In-1 Portable Air Conditioner, (ASHRAE),... | View Price on Amazon |
| $0.0383 | $459.99 | 12,000 | 12,000 BTU Dreo Portable Air Conditioners, AC for Bedroom with Drai... | View Price on Amazon |
| $0.0458 | $549.99 | 12,000 | 12,000 BTU Dreo Portable Air Conditioners, ASHRAE (DOE) Smart AC fo... | View Price on Amazon |
| $0.0643 | $642.51 | 10,000 | 10,000 BTU LG SACC(14000 ASHRAE) Portable Air Conditioners with Dua... | View Price on Amazon |
| $0.1240 | $619.90 | 5,000 | 5,000 BTU VEVOR Portable Air Conditioner, 3-Speed Air Conditioning ... | View Price on Amazon |
Split Air Conditioners
Last updated: September 17, 2025, 8:46 pm
About This Air Conditioner Price Tracker
This price tracker tool helps you find the most cost-effective air conditioners by comparing their price per BTU ratio. Updated daily, it shows the best deals on window, portable, and mini-split air conditioners from top brands like LG, BLACK+DECKER, GE, and others. Each unit's BTU rating and price are carefully tracked to help you make an informed decision and get the best value for your cooling needs.
The tables above are automatically updated with current Amazon prices and sorted by price per BTU, making it easy to find the most economical air conditioner for your space. Whether you're looking for a window unit, portable AC, or mini-split system, you can compare options and make the best choice for your budget.