AC Bill Calculator in Guwahati
(2026)

Guwahati is located in Assam, which has a domestic electricity tariff of ₹5.5 per unit (kWh) as per the 2026 tariff revision. This tariff is applied on a slab basis — as your monthly consumption increases, higher slabs attract higher per-unit rates. For an average household running a 1.5-ton AC for 9 hours per day, the AC alone accounts for 40–60% of the total electricity bill during peak summer months (April – June).

Guwahati's Humid Subtropical climate means the city experiences average summer temperatures of around 36°C. Guwahati has hot, humid summers with heavy monsoon rainfall. ACs run 8–10 hrs/day in peak season. Assam has India's lowest electricity rates, making AC running costs very affordable. This directly impacts how hard your AC has to work — in hotter, more humid conditions, the compressor runs at higher capacity for longer durations, consuming more electricity. A well-sized, well-maintained 5-star inverter AC is the most energy-efficient choice for Guwahati's climate conditions.

Choosing the right AC tonnage for Guwahati is critical. The standard rule is 0.0667 tons per square foot (1 ton per 15 sq ft), but in Guwahati's heat, it's advisable to add 10–15% buffer tonnage for rooms above the ground floor or with direct sun exposure. A 1.5-ton AC covers 150–200 sq ft effectively; a 1-ton AC handles up to 130 sq ft. Oversizing wastes electricity; undersizing causes continuous operation and accelerated wear.

For Guwahati residents, the BEE 5-star rating system is not just a label — it's a financial decision. A 5-star inverter AC running 9 hours/day in Guwahati saves approximately ₹8,130/year compared to a 3-star model. Given Guwahati's long peak season (April – June), the return on the ₹5,000–8,000 star-rating premium is typically achieved within 18–24 months of purchase.