To estimate your IESCO bill online based on the units you’ve consumed for your residential connection, use our easy-to-use IESCO bill calculator. We’ve integrated IESCO’s updated tariff from October 1, 2024, to provide an estimated electricity cost for you. This calculator is specifically designed for residential connections. If you’re a commercial or industrial user, we recommend checking the IESCO tariff and calculating your bill according to the unit rates for your consumer category.