each person pays
Project savings or investments forward with optional monthly deposits.
Wall-clock time in any IANA zone to any other via the engine's own Intl.DateTimeFormat, so daylight saving and half-hour zones are always right.
Flip up to 500 coins at once and get the heads and tails tally.
Roll up to 500 dice of any size, with a modifier and a full tally of the results.
Mifflin-St Jeor BMR for men and women, the six real activity multipliers, TDEE as BMR times the multiplier, then a lose-500 / maintain / gain-300 goal.
Look at any image or colour through protanopia, deuteranopia, tritanopia or achromatopsia, with a severity dial and a side-by-side split view.
Latitude, day of the year and the sunrise and sunset you read off a clock, turned into day length, solar noon, noon sun elevation and solar declination, each checked against the NOAA solar-position series.
NWS wind chill at 50 F or below with 3 mph or more, clamped to the air temperature whenever the formula runs warm, and the Rothfusz heat index at 80 F or above with 40% RH or more. Outside both windows it says so.
