Step 1: Read your meter
Check your current and previous meter readings in kilowatt-hours (kWh). Subtract the previous reading from the current reading to calculate the units consumed in the billing period.
Step 2: Choose the tariff type
Your electricity bill may use a flat rate or slab tariff. If your utility uses a slab, the first units cost less and higher usage units cost more. Confirm your rates from the bill or the local electricity board website.
Step 3: Apply the bill formula
The basic formula is:
Bill = Units × Rate per unit + Fixed charges + Taxes/Surcharges
For slab-based bills, calculate the cost per slab segment and add them together before fixed charges and taxes.
Step 4: Add fixed charges and taxes
Most electricity bills include a fixed charge for meter rental, network usage, or meter maintenance. Add these charges plus any taxes or surcharges after calculating the energy cost.
Step 5: Compare with calculators
Use the monthly electricity bill calculator India for a quick estimate. Use the appliance electricity cost calculator to break down costs for individual appliances.
Example
If you consume 320 units at ₹8/unit with ₹100 fixed charges and 5% tax, the energy cost is ₹2,560. Add ₹100 fixed charge and ₹128 tax for a total of ₹2,688.