Electricity Cost Calculator
Estimate the monthly running cost of an appliance from its wattage and usage.
Assumptions used in this calculation
- Constant load: Assumes the appliance draws its full rated wattage continuously for the entire usage period, with no variation from cycling (e.g. thermostats, compressors).
- Flat tariff: Uses a single flat rate per unit; it does not model slab-based/tiered electricity pricing or time-of-day tariffs.
About this calculator
The electricity cost calculator estimates the monthly cost of running an appliance from its wattage, daily usage hours, days per month and electricity rate.
Worked example
1500W, 5h/day, 30 days, ₹8/unit
Result: ₹1,800/month
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