Environment

Quickly estimate how much you can save on yearly electricity and CO2 by replacing incandescent bulbs with LED or fluorescent lamps, based on wattage, hours of use, and the number of bulbs.

Estimate the electricity cost and CO2 emissions of running an AC in cooling mode from its power draw (W), hours, and days. You can also pick by room size.

Estimate the electricity cost and CO2 emissions of running your AC in heating mode, broken down per hour, day, and month.

Enter your driving distance, fuel economy, fuel type, and fuel price to instantly estimate fuel consumption (L), fuel cost, and CO2 emissions. Supports gasoline and diesel, and also shows CO2 emitted per kilometer.

Enter your annual mileage and your fuel economy before and after to estimate how much you'll save on yearly fuel costs and how much CO2 you'll cut. See the impact of eco-driving or switching cars in real numbers.

Estimate the total CO2 emissions from your household and daily life based on electricity, gas, gasoline, kerosene, and water use. Also shows the equivalent number of trees needed to absorb it in a year.

Enter your usage (kWh), per-kWh energy rate, fixed monthly base charge, and any renewable-energy levy to instantly estimate a monthly electricity bill. It also shows the breakdown of energy charge, base charge, and levy, plus the effective all-in unit price per kWh. Handy for checking an estimate against your meter reading.