Calculate annual TV viewing , savings from LED bulbs, and payback periods for appliances. Input device specs, usage time, and electricity rates to estimate and savings. Export results for comparison.
Track electricity, water, and gas consumption or photovoltaic/windpower production. Add meter readings manually or via email. Set reminders for regular readings. Export data for analysis on a home computer. Monitor consumption trends over time.
Convert values between units in 22 categories including acceleration, angle, area, and data storage. Support currency exchange for 160 currencies. Search units by category or globally. Bookmark frequently used conversions.
