Conforme observaremos nas qie seguem, tanto o sistema métrico como o não-métrico podem ser utilizados em muitos casos, especialmente na Grã-Bretanha. A escolha irá depender do locutor ou da situação. Na Grã-Bretanha estipulou o sistema métrico para embalagens, pacotes e etiquetas informando peso e medidas dos produtos. O sistema métrico é sempre utilizado no âmbito cientÃfico. Nos EUA, o sistema métrico é bem menos utilizado.
unit measured
(item medido) |
unit of measurement
(unidade de medida) |
examples
(exemplos) |
lenght of time
(duração) |
hours (hrs)
horas
minutes (mins)
minutos
seconds (secs)
segundos |
We had a three and a half hour test this morning.
I live just ten minutes from school.
The light flashes every 5 seconds.
|
person's height
(altura de pessoa) |
feet and inches
(pés e polegadas)
metres and centimetres (UK)
(metros e centÃmetros) |
My sister is 1.68 metres tall.
He is only five feet four (inches).
He is only five foot four. |
distance by road
(distância em estradas) |
miles
(milhas) |
We walked ten miles today. |
speed
(velocidade) |
miles per hour (mph)
(milhas por hora)
kilometres per hour (kph)
(kilômetris por horas)
kilometres per second, etc.
(quilômetros por segundo)
miles an hour (informal) |
There is a 60 mph speed limity.
Lights travels at 299 792 kilometres per second.
there had been a hundred-mile an hour police chase. |
distance in sport
(distância em esportes) |
metres
yards/miles (US)
(jarda / milhas) |
the women's 800 metres freestyle
a six-mile run
a 2000-hectare farm |
area of land - for example farmland
(área de terras- por exemplos, terras agrÃcolas) |
acres/hectares |
a 250 acres farmland
a three acre wood
(informal) Each house has acres of space around it (=a lot of space).
|
regions or areas of a country
(regiões ou áreas de um paÃs)
|
square miles
(milhas quadradas)
square kilometres (UK)
(quilômetros quadrados) |
105,000 square miles of rainforest were destroyed between 2000 and 2005.
Population density in India is 336 people per square kilometre. |
area of a room/garden, etc.
(área de um espaço, sala/jardim, etc.)
|
square yards/feet
(jardas quadradas)
square metres (UK)
(metros quadrados)
...by... (...X...)
(... por ...) *
|
5000 square feet of office space
15 square metres of carpet (5m x 3m)
a carpet fifteen metres square (15m x 15m)
a room sixteen feet by twelve (16ft x 12 ft) |
weight of food
(peso de alimentos)
|
pounds and ounces
(libras e onças)
kilograms and grams (UK)
(quilogramas e gramas)
cups (US, in cooking)
(xÃcaras, no preparo de alimentos)**
|
Fold in 2 ounces of sugar.
200 grams of ham, please.
Add half a cup of yeast. |
weight of a person
(peso de pessoas) |
stones and pounds (UK)
(stones e libras)
pounds only (US) |
An average male adult weights 185 lb.
My brother weights 172 pounds. |
weight of a baby
(peso de bebês) |
pounds and ounces
kilograms (UK)
|
The baby weighed 7 lb 4 oz at birth. |
heavy items / large amounts
(itens pesados/grandes quantidades)
|
tons / tonnes
(toneladas)
pounds
kilograms (UK) |
The price of copper fell by £13 a tonne.
Our baggage allowance is only 20 kilos.
a car packed with 140 pounds of explosive
|
milk
(leite) |
pints / half pints (UK)
(pints / half pints)
pints / quarts / gallons (US)
(pints / quarts / galões) |
I bought a quart of milk at the store.
There are only one-pint cartons of milk available at the supermarket. |
beer
(cerveja) |
pints / half pints (UK) |
I'll have a half of larger, please.
(= half a pint) (informal) |
wine, bottled drinks
(vinho, bebidas engarrafadas) |
litres / centilitres
(litros / centilitros) |
The bottle has a litre of orange juice. |
other liquids
(outros lÃquidos) |
litres (UK)
fluid ounces / gallons (US)
millilitres (scientific context)
(mililitros - contexto cientÃfico) |
Add half a litre of cooking oil in the pan.
100 ml of sulphuric acid
3 litres of paint; 5 gallons of paint. |
liquid in cooking |
fluid ounces
millilitres (UK) |
Fold in 8 fl oz milk and beat throughly. |
petrol (BrE)
(NamE gasoline/ diesel)
|
gallons (US)
litres (UK) |
My new car does over 50 miles to the gallon. |
