Free electricity calculator to estimate electricity usage as well as cost based on the power requirements and usage of appliances.

Sep 11, 2025 · Enter the total power in Watts, and the total time into the watts to KWH calculator to determine the KWH (Kilowatt-hours). This calculator can also determine the time or wattage if the …

The energy E in kilowatt-hours (kWh) per day is equal to the power P in watts (W) times number of usage hours per day t divided by 1000 watts per kilowatt: E(kWh/day) = P(W) × t(h/day) / 1000 (W/kW)

Calculate your electricity usage and costs with our interactive kWh calculator. Input device wattage, usage hours, and rates to estimate energy consumption and monthly costs.

Nov 13, 2025 · A kWh (kilowatt-hour) calculator helps you estimate energy consumption and cost accurately. In this guide, we’ll explain what kWh means, how to calculate it, and include a free …

Jun 5, 2025 · This kWh calculator helps you estimate electricity consumption, costs, and carbon emissions from household appliances and devices. It’s an electricity usage tool that allows you to …

Estimate your home's electric use with a kWh calculator. Input home details for a customized estimate. Find the best electricity plans and rates for your usage.

Enter electric appliance in the dropdown menu or enter manual wattage rating in watts or kilowatts (kW) and the daily usage of the device in hours. Click the calculate button to determine the daily, monthly …

This KWh estimator allows you to calculate the total kilowatt-hours (kWh) consumed by an appliance over a specified period. This can help you better understand your energy usage and manage your …

May 16, 2025 · Calculate the energy consumption and cost of your appliances with the kWh Calculator. Get detailed daily, monthly, and yearly electricity usage reports.