cm
m
inch
feet (12in, 1/3yd)
:
ft : in
km
miles
cm
2
m
2
inch
2
feet
2
cm
3
m
3
inch
3
feet
3
g
oz
lb (16oz)
:
lb : oz
cup sugar
cup flour
cup butter (8oz)
Liter
quart
fl oz
gal (4qt, 8pt)
Celcius
Fahrenheit
round to 10 digits
Wikipedia: United States customary units