Smart Consumer Buying Tools
Don’t guess when purchasing expensive electronics and appliances. Use our data-backed calculators engineered specifically for Indian climate, room sizes, and power grids.
AC Tonnage & Power Bill Calculator
Calculate the exact AC tonnage (0.8T to 2.0T) for your room size, sun exposure, and city climate. Compare 3-Star vs 5-Star electricity bills and 5-year savings.
- Room dimensions & ceiling height formula
- Top floor heat & western sunlight penalty
- 3-Star vs 5-Star power bill comparison
- State electricity tariff customization (₹/unit)
Home Inverter & Battery Sizer
Determine the exact Inverter VA rating and Battery capacity (100Ah–220Ah) required to power your fans, lights, TV, and Wi-Fi during summer blackouts.
- Interactive household appliance load builder
- Standard 75W vs modern 28W BLDC fan savings
- Accurate Ah calculation with depth-of-discharge
- Tall Tubular vs Short Tubular recommendations
Refrigerator Capacity & Family Sizer
Find the ideal refrigerator capacity (Litres) and door style (Single Door vs Double Door Frost Free vs Side-by-Side) based on family size and grocery habits.
- Household size & diet-based freezer allocation
- Weekly grocery batch stocking adjustments
- Annual electricity consumption estimate (kWh)
- Direct links to tested 2026 refrigerator picks
TV Viewing Distance & Screen Size Calculator
Find the scientifically optimal TV screen size (32" to 85") for your sofa-to-wall distance, 4K UHD resolution, and THX cinema field of view standards.
- SMPTE & THX living room field-of-view formula
- Continuous distance slider (4 ft to 16 ft)
- 4K Ultra HD vs 1080p pixel density indicator
- Direct links to tested 43", 55", and 65" TV picks
Water Purifier TDS & Technology Selector
Check whether your home needs RO, UV, or UF purification based on tap water TDS (ppm), source, and family size. Calculate annual filter replacement costs and water savings.
- BIS IS 10500:2012 water quality standards
- Quick presets for 8 major Indian cities
- RO vs UV vs UF demineralization warning
- Annual filter maintenance cost breakdown
🔬 Independence Guarantee
Zero Brand Sponsorships in Calculator Logic
Our formulas follow official Bureau of Energy Efficiency (BEE) standards, Indian Society of Heating & Refrigerating Engineers (ISHRAE) guidelines, and standard electrical power factor equations. No brand can pay to alter recommendations.