Tools & Calculators

AC Calculators

Tonnage sizing uses a heat-load model aligned with Indian HVAC practice — not a crude area÷600 shortcut. See methodology below.

Calculator 1 of 4

📐 Tonnage Calculator

Real heat-load estimation: envelope + solar + occupancy + equipment + climate zone

Room length (ft)

Room width (ft)

Room height

Location

Floor

Windows / sun exposure

People usually in room

Room type

Appliances / heat sources

Ventilation

Calculator 2 of 4

⚡ Electricity Savings vs Old AC

See how much you'd save switching to a specific Daikin model

Your old AC's ISEER (or approx. BEE star)

New Daikin model

Tariff (₹/unit), hrs/day & months/year

Monthly bill uses a fixed 30-day month. Default 12 months/year assumes full-year use — lower it if you only run the AC seasonally.

Calculator 3 of 4

🧾 Monthly Bill Estimator

Exact electricity cost for any Daikin model

Model

Tariff, hours/day & days/month

Set temperature

Usage profile

The temperature/profile adjustment is a transparent scenario factor, not a guaranteed real-world measurement. Actual inverter consumption varies with heat load and weather.

Calculator 4 of 4

💳 EMI / Financing Calculator

Monthly EMI before you buy

Methodology — Indian HVAC-aligned heat load estimation

The tonnage calculator uses a simplified heat-load model structured the way Indian HVAC engineers approach a cooling load estimate: envelope gain + solar/glass gain + occupancy gain + equipment gain + infiltration/ventilation gain, scaled by climate zone, then converted to Tons of Refrigeration (1 TR = 12,000 BTU/hr — a physical constant, not an approximation). This is deliberately not presented as a substitute for a certified Manual-J / CLTD-CLF load calculation, which needs a full site survey — it's a fast, transparent, honest estimate calibrated to match this platform's own published sizing guidance, with every contributing factor visible in the breakdown above.