Degrees, radians, gradians, turns.
deg: 180 rad: 3.141592653589793 grad: 200 turn: 0.5
Yes.
No.
Celsius / Fahrenheit / Kelvin / Rankine.
B/KB/MB SI and IEC binary units.
km/L ↔ L/100km ↔ MPG.
mm/cm/m/km, in/ft/yd/mi/nmi, 尺/寸/間.