BillCalc – India's Free Electricity, Water & PNG Bill Calculators

Utility bills in India (electricity, water, and gas) are calculated based on several components: consumption slabs (progressive per-unit rates), fixed charges (based on load or connection size), surcharges (fuel adjustment, sewerage tax), government duties (electricity duty, GST on gas), and applicable minimum charges. Each utility provider follows its own tariff structure set by the respective regulatory authority.

Telescopic slabs charge each unit only within its respective slab — so only the units exceeding a slab boundary are billed at the higher rate. Non-telescopic slabs apply the rate of the highest slab to all units consumed. Most electricity boards use the telescopic method, but water utilities and some electricity boards use non-telescopic billing. BillCalc supports both models and correctly applies whichever the provider uses.

BillCalc configures each calculator using tariff information reviewed from publicly available resources published by the respective utility provider. Every calculator is also tested against multiple sample calculations before publication. Minor differences may occur due to rounding rules, mid-period tariff revisions, outstanding dues, or utility-specific adjustments. Always refer to your official utility bill for the final payable amount.

Yes. Many BillCalc calculators include an optional tariff customization feature. Each calculator comes pre-configured with reviewed tariff settings, but you can modify supported slab rates, fixed charges, taxes, and other billing components to match your specific connection type or billing scenario. This lets you simulate different billing outcomes without affecting the default configuration.

No. BillCalc is an independent informational platform and is not affiliated with, endorsed by, or operated by any electricity board, water utility, gas company, municipal corporation, regulatory commission, or government organization. All utility names and trademarks belong to their respective owners and are used solely for identification and informational purposes.

To calculate your electricity bill, subtract the previous month's meter reading from the current reading to find the units (kWh) consumed. Multiply these units by the respective tariff slab rates of your state provider (e.g. UPPCL, MSEDCL, TNEB). Add the monthly fixed charges (based on your sanctioned load in kW), electricity duty (tax), and any FPPCA surcharges to get the total payable amount.

Under the Delhi Government's water subsidy scheme, domestic consumers with a metered connection who consume 20 KL (20,000 liters) or less water in a month receive a 100% discount on both volumetric water charges and sewerage service charges (net bill is zero). However, if consumption exceeds 20 KL even by a single liter, the full volumetric rates and service charges apply for the entire consumed amount.

Fixed charges (or demand charges) are base fees billed by electricity distribution companies (DISCOMs) to cover the maintenance of grid infrastructure and supply security. They are usually charged either as a flat monthly rate or calculated per kilowatt (kW) of your sanctioned or connected load (e.g. ₹50 or ₹100 per kW), regardless of how many units of electricity you actually consume.

FPPCA stands for Fuel and Power Purchase Cost Adjustment. It is a dynamic surcharge allowed by State Electricity Regulatory Commissions (SERCs) to let utilities recover fluctuations in the cost of fuel (like coal and gas) and power procurement. FPPCA is billed per unit of consumption (e.g., ₹0.10 to ₹0.50 per unit) and varies across billing cycles depending on resource costs.

Piped Natural Gas (PNG) bills are calculated based on consumption measured in Standard Cubic Meters (SCM). The bill consists of the volumetric consumption charges (units consumed multiplied by the rate per SCM, e.g. IGL at ₹49.59/SCM or MGL at ₹51.50/SCM), fixed connection charges (typically ₹50/month), and applicable VAT or local taxes (ranging from 3% to 5%).