Add every room, and we'll sum the loads. US mode recommends a central system size (or zoning above 5 tons). India mode recommends a per-room split AC plan — the way Indian homes actually buy. Share your plan with a link, no account needed.
Climate and tonnage snapping follow the US/India switch in the header. The share link encodes your rooms in the URL itself — nothing is uploaded.
| Total cooling load | — |
| Rooms | — |
Walk the house once with a tape measure and enter every conditioned room — including the ones you're tempted to skip, because a central system conditions the whole envelope whether you list it or not. Be honest about occupants per room (count where people actually sleep and gather, not an even spread), mark top-floor rooms, and set sun exposure per room rather than averaging: a west-facing living room and a north-facing bedroom in the same house can differ by half a ton each. The total maps to one of three answers: a single central unit up to 5 tons — verify the duct airflow figure shown, since an old duct system that can't move the CFM will choke a new condenser; a zoned or dual-unit setup above 5 tons; or, in India mode, a per-room split plan, because Indian homes cool room-by-room. Use the share link to send the plan to family or your installer and the PDF report to anchor the quoting conversation. If ducts aren't an option at all, plan the same rooms on the mini-split calculator instead, and the oversizing guide explains why resisting the round-up matters at whole-house scale.