Tables of Unit Conversion Information
TABLES OF UNIT CONVERSION INFORMATION
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Study the information in the tables below.
When you're ready, test your knowledge with these exercises:
classifying units as length, time, volume, weight/mass
practice with unit abbreviations
practice with unit names
practice with unit conversion information
one-step conversions
multi-step conversions
rate problems

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