A tip for
converting non-metric quantities.

Do the
non-metric conversions as follows:

Multiplying a number
by ** 1 ** does ** NOT CHANGE ** the number.

Multiply the
quantity that has to be converted by a conversion factor that is equal to 1. Make the conversion
factor, a fraction, so that the units that are not required cancel out.

For example:
convert 5 pints to litre. Make the conversion factor so that pints will cancel out. Put litre in
the teller and pints in the noemer. The unit int will now cancel out and the answer is in
litre - which is exactly what you want. Furthermore: 1 pint = 0,5683 litre {obtained from a table}.

0,5683 litre

The conversion
factor is now --------------------- .

1 pint

0,5683 litre

Therefore
5 pints = 5 pints X ---------------------- = 2,842
litre

1 pint

Use the
conversion table below to make the conversion factor. The following abbreviations apply:

in : inch;
ft : foot or feet; yd : yard;
sq : square cub. : cubic
cc : cubcic cm

gal : gallon;
pt : pint; oz : ounce;
lb : pound

1 cm | 0,03937 in. | 1 km | 0,6214 mile | 1 in. | 2,54 cm | ||

1 ft | 12 in. | 1 yd | 3 ft | 1 ft | 0,3048 m | ||

1 yd | 0,9144 m | 1 mile | 1760 yd | 1 mile | 1,6093 km | ||

1 gram | 0,0353 oz | 1 kg | 2,2046 lb | 1 lb | 16 oz | ||

1 litre | 1,76 pt | 1 gal | 8 pt | 1 gal | 4,5461 litre |

1.

Do the
following conversions:

1.1

50 yards to meter

1.2

31,35 miles to kilometer

1.3

18,42 lb to kg

1.4

75 metres to yards

1.5

3,4 km to mile

1.6

25 kg to lb

1.7

6 pints to litre

1.8

2,3 gallons to litre

1.9

234,6 litres to gallon

1.10

3,45 litres to pints

1.11

3,56 gallons to pints

1.12

210 litres to gallons

1.13

5 ounces to gram

1.14

7 lb to kilogram

1.15

18,45 kg to lb

1.16

340 gram to ounces

1.17

3,3 in. to cm

1.18

650 gram to lb

2.

Convert

2.1

3 feet
6 inches to metres.

2.2

6 lb 14 oz to kg

2.3

2 gallons
7 pints to litres.

2.4

6 yd 2 ft 7 in. to m

2.5

30,825 m to yd and ft

2.6

0,825 mile to km

2.7

8,5 inches to cm

2.8

98,3 cm to inches

3.

The mass of
a loaf of bread is 800 gram. What is the mass in ounces and in pounds?

4.

A marathon
is run over 42 km. How many miles is that?