Everyday

Choose a basis for each item to get your total trip cost and cost per person, with forei…

Subtract airport arrival and travel time from your flight time to get when to leave home…

Work out local arrival time, date change and time difference with DST applied, using you…

Works out whether your trip is an eastbound or westbound type, how many days you need to…

Enter a distance to compare walking, cycling, bus, subway and car travel times as bars, …

Calculate the NWS heat index from temperature and humidity or dew point, with its catego…

Calculates wind chill from air temperature and wind speed and shows Environment Canada f…

Enter two of temperature, humidity and dew point to get the third, and check a surface f…

Calculate when a new habit settles in (day 66) from your start date and check it off dai…

Turn total pages and your reading weekdays into a daily page target and finish date, the…

See how many hours a few minutes saved each day add up to over a year or ten, shown as b…

Enter your current and end age, add what you want to do at each age, and get your time l…

Calculate your yearly carbon footprint per person from travel, home energy, diet and was…

Draw a week of life or any CO₂ amount as a gas ball at the same scale as a person, bus a…

Check fridge and freezer readings against 40°F and 0°F and sort what to keep or toss aft…