Brazil uses the metric system, therefore, everything in Brazil is measured in kilometers, meters, centimeters, millimeters, kilograms, grams, etc. Also see our online measurement converter.
 

English	Portuguese
hectare	hectare
kilometer	quilômetro
meter	metro
centimeter	centímetro
millimeter	milímetro
kilogram or kilo	quilograma ou quilo
ton	tonelada
gram	grama
milligram	miligrama
micron	mícron
liter	litro
centigrade	centígrado
kilowatt	quilovate

While not necessarily used in Brazil, many Brazilians are familiar with:
 

English	Portuguese
inch	polegada
foot	pé
yard	jarda
mile	milha
nautical mile	milhanáutica
knot (nautical)	nó
ounce	onça
gallon	galão
pound	libra
acre	acre