- Duration
Years are defined as 365.25 days and months are defined as 1/12 a year.
- Coordinate
Values must be entered as a string with one space between subunits (e.g. 70° 33’ 11” = "70 33 11").
- Energy
cal is a thermochemical calorie (4.184 J) and Cal is 1000 cal (kcal or 4184 J).
- Mass
All non-metric units are based on the avoirdupois system.
- Power
hp is mechanical horsepower, or 745.69 W.
- Pressure
cmH2O is defined at 4 °C.
- Pressure
inH2O is defined at 60 °F.
- Speed
mach is calculated at sea level at 15 °C.