Defaults reflect this space type. Same engine as the main calculator.
| Cooling load | — |
Low internal gains (two sleeping people, no appliances), night-time operation when outdoor temperatures fall, and a single closed door: bedrooms have the gentlest load profile in the house. They're also where oversizing hurts most — an oversized unit short-cycles at 2 a.m., leaving the room cold but humid, exactly when you want long quiet cycles.
Look at the indoor unit's low-fan dB rating, not just tonnage: a right-sized inverter idling at 19–26 dB is the sleep-quality difference. In India, a 1–1.5T 5★ inverter covers the standard 120–160 sq ft bedroom; top-floor rooms under an RCC roof go 1.5T.
A typical bedroom (~140 sq ft) needs about 4,080 BTU/hr — a 1.5 ton unit in moderate US conditions, or 1.5 ton in hot Indian conditions (13,879 BTU/hr).
A typical Indian bedroom of ~140 sq ft carries roughly 13,879 BTU/hr in hot conditions — a 1.5 ton. Adjust with the calculator above for your exact room and city.
For a 100–120 sq ft mid-floor bedroom in a moderate Indian city, yes — a 1T (or even 0.75T) inverter will run longer, quieter, drier cycles. 1.5T earns its place at 140+ sq ft, on top floors, or in hot-dry cities.
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