Utility Tools

Calculate how much any appliance costs to run per hour, day, month, and year. Includes 28 appliance presets, a W/kW toggle, an energy-level gauge, and saving tips.

Estimate your personal annual carbon dioxide emissions in metric tons based on home energy use, transportation habits, and diet.

Estimate your personal daily and annual water footprint — including the hidden water in your food, clothing, and electronics.

Compare the price per unit of two products side by side. Automatically converts units to find the best value and exact savings.

Calculate a fair, weighted rent split among roommates based on bedroom size and private amenities like bathrooms, balconies, and closets.