What do you want to calculate?
Choose a tool for electricity bills, power consumption, inverter and battery backup, solar, generators or wiring.
Home Load Calculator
Calculate total connected load, typical operating wattage, and daily kWh units from an Indian appliance preset library.
Electricity Bill & Slab Tariff
Estimate your monthly DISCOM bill with state tiered slab rates, sanctioned load fixed meter rent, and government subsidies.
Complete Home Backup Planner
Personalized home backup planner connecting appliance load, inverter sizing and battery capacity with practical safety headroom.
Inverter Size Calculator
Compute exact Inverter VA rating, system DC voltage (12V/24V/48V), and Pure Sine Wave recommendations with safety headroom.
Battery Backup Time Calculator
Compute realistic backup hours considering Depth of Discharge (DoD), Peukert derating, and inverter conversion efficiency.
Wi-Fi Router & WFH UPS Calculator
Calculate uninterrupted runtime for Wi-Fi routers, fiber ONT modems, and CCTV with 12V direct DC vs 230V AC desktop UPS.
Battery Life & Cycle Expectancy
Estimate how many years your inverter battery will survive based on Depth of Discharge (DoD) and Indian summer room temperatures.
House Electrical Wiring Cost Calculator
Estimate room-wise electrical points, wire and conduit quantities, circuit counts, and a practical Indian home installation budget range.
Cable Size & Voltage Drop Estimate
Compare estimated conductor voltage drop using current, length and material. Final cable suitability requires professional review of installation conditions and protection.
Sanctioned Load & MCB Check
Audit your connected appliances to avoid DISCOM Maximum Demand (MDI) penalties and size the main distribution MCB breaker.
Rooftop Solar & PM Surya Ghar
Size your rooftop solar plant (kW), panel counts, shadow-free roof area, PM Surya Ghar central subsidy, and payback period.
Generator Sizing Calculator
Size prime and standby diesel or petrol generators to safely handle continuous running loads and motor starting inrushes.
Diesel Generator Running Cost
Estimate hourly and monthly diesel consumption (L/hr) and fuel costs, with direct economic comparison against inverter batteries.