Electricity & Solar Calculators

Find out which appliances drive your bill and whether solar makes sense for your home.

Tariffs change often and differ by DISCO and slab, so we never assume a fixed rate — enter the rate per unit from your own bill.

10 electricity & solar calculators

Watts × hours × days → units and cost.

Convert watts and hours to kWh units.

Running cost of AC, fan, fridge, pump and more.

Units and cost for 1–2 ton inverter or regular ACs.

Ceiling, DC and pedestal fan running cost.

Estimate your bill from monthly units.

System size in kW and number of panels.

Monthly savings and payback in years.

Battery Ah and count for backup hours.

Add appliances to size inverter and panels.