Defaults reflect this space type, including its typical equipment/metabolic load of ~1,600 BTU/hr. Same engine as the main calculator.
| Cooling load | — |
A desktop workstation, two monitors and peripherals dissipate 300–500 W continuously — roughly 1,600 BTU/hr, more than two extra occupants. The estimate below budgets it; a gaming rig or workstation GPU under load can double it.
Pick equipment by its low-fan sound rating: an inverter split idling at ~21 dB is inaudible on calls; a cycling window unit isn't. In India a 1T 5★ inverter covers the typical 100–140 sq ft office with a PC; in the US, a 9k mini-split head is the quiet choice over a window unit.
A typical home office (~120 sq ft) needs about 5,240 BTU/hr — a 1.5 ton unit in moderate US conditions, or 1.5 ton in hot Indian conditions (13,640 BTU/hr).
A typical Indian home office of ~120 sq ft carries roughly 13,640 BTU/hr in hot conditions — a 1.5 ton. Adjust with the calculator above for your exact room and city.
Every watt the equipment draws becomes ~3.41 BTU/hr of heat. A 400 W workstation adds ~1,365 BTU/hr — equivalent to two extra people in the room.
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Go deeper: Main tonnage calculator · all guides.