audio read-through Tables of Unit Conversion Information

Study the information in the tables below. When you're ready, test your knowledge with these exercises:

Abbreviations may be used for either singular or plural usage:

1 foot is abbreviated as 1 ft
2 feet is abbreviated as 2 ft

UNITS OF LENGTH

Name of Unit Common Abbreviation Conversion Information
millimeter (metric) mm  
centimeter (metric) cm
1 cm is about 0.4 in
a centimeter is shorter than an inch
meter (metric) m
1 m is about 1.1 yd
a meter is a little longer than a yard
1 m = 1000 mm
1 m = 100 cm
kilometer (metric) km
1 km is about 0.6 mi
a kilometer is shorter than a mile
a kilometer is a little more than half a mile
1 km = 1000 m
inch in 1 in  is about 2.5 cm
foot ft 1 ft = 12 in
yard yd
1 yd = 36 in
1 yd = 3 ft
mile mi
1 mi   is about 1.6 km
a mile is longer than a kilometer
a mile is a little more than one and a half kilometers
1 mi = 5,280 ft

UNITS OF TIME

Name of Unit Common Abbreviation Conversion Information
second sec  
minute min 1 min = 60 sec
hour hr 1 hr = 60 min
day   1 day = 24 hr
week wk 1 wk = 7 days
month   1 month is about 30 days
year yr
1 year is about 365 days
1 year is about 52 weeks
decade   1 decade = 10 yr
century   1 century = 100 yr

UNITS OF VOLUME

Name of Unit Common Abbreviation Conversion Information
liter (metric)  
1 liter is about 1.1 qt
a liter is a little more than a quart
1 liter = 1000 ml
milliliter (metric) ml  
gallon gal 1 gal = 4 qt
quart qt 1 qt = 4 cups
pint pt 1 pt = 2 cups
cup   1 cup = 8 fl oz
fluid ounce fl oz  
tablespoon tb 1 tb = 3 tsp
teaspoon tsp  

UNITS OF MASS AND WEIGHT

Name of Unit Common Abbreviation Conversion Information
kilogram (metric) kg 1 kg = 1000 g
gram (metric) g  
ton   1 ton = 2000 lb
pound lb 1 lb = 16 oz
ounce oz  
When you're done studying this information, move on to:

Classifying Units as Length, Time, Volume, Weight/Mass