METRIC AMERICA
This metric system is based upon the version of the metric system called SI (for Systeme International d’Unites or International System of Units). It consists of:
lCommonly used metric system units and symbols
lRules and conventions for using the metric system a metric ruler
lGuidance for using some commonly used technical SI (metric) units
Household Units
This metric system is based upon the version of the metric system called SI (for Systeme International d’Unites or International System of Units). It consists of:meter (m)
A yard plus 3½ inches
1 dime = 1mm in length
Commonly Used Units
Quantity measured | Unit | Symbol |
Relationship
| ||
---|---|---|---|---|---|
Length, width, distance, thickness, girth, etc. | millimeter | mm |
10 mm
| = | 1 cm |
centimeter | cm |
100 cm
| = | 1 m | |
meter | m | ||||
kilometer | km |
1 km
| = | 1000 m | |
Mass (“weight”)* | milligram | mg |
1000 mg
| = | 1 g |
gram | g | ||||
kilogram | kg |
1 kg
| = | 1000 g | |
metric ton | t |
1 t
| = | 1000 kg | |
Time | second | s | |||
Temperature | degree Celsius | °C | |||
Area | square meter | m² | |||
hectare | ha |
1 ha
| = | 10 000 m² | |
square kilometer | km² |
1 km²
| = | 100 ha | |
Volume | |||||
cubic centimeter | cm³ |
1 cm³
| = | 1 mL | |
liter | L |
1 L
| = | 1 dm³ | |
cubic meter | m³ | ||||
Speed, velocity | meter per second | m/s | |||
kilometer per hour | km/h |
1 km/h
| = | 0.278 m/s | |
Density | kilogram per cubic meter | kg/m³ | |||
Force | newton | N | |||
Pressure, stress | kilopascal | kPa | |||
Power | watt | W | |||
kilowatt | kW |
1 kW
| = | 1000 W | |
Energy | kilojoule | kJ | |||
megajoule | MJ |
1 MJ
| = | 1000 kJ | |
kilowatt hour | kW·h |
1 kW·h
| = | 3.6 MJ | |
Electric current | ampere | A |
Prefix Units
"The Great Mighty King Henry Died By Drinking Chocolate Milk while Munching Nuts"
Name
Symbol
Meaning
Multiplier
giga
G
one billion
1,000,000,000
mega
M
one million
1,000,000
kilo
k
one thousand
1,000
hector
h
one hundred
100
deca
da
ten
10
base
unit
deci
d
one tenth
0.1
centi
c
one hundredth
0.01
milli
m
one thousandth
0.001
micro
μ
one millionth
0.000 001
nano
n
one billionth
0.000 000 001
Name
|
Symbol
|
Meaning
|
Multiplier
|
giga
|
G
|
one billion
|
1,000,000,000
|
mega
|
M
|
one million
|
1,000,000
|
kilo
|
k
|
one thousand
|
1,000
|
hector
|
h
|
one hundred
|
100
|
deca
|
da
|
ten
|
10
|
base |
unit
|
||
deci
|
d
|
one tenth
|
0.1
|
centi
|
c
|
one hundredth
|
0.01
|
milli
|
m
|
one thousandth
|
0.001
|
micro
|
μ
|
one millionth
|
0.000 001
|
nano
|
n
|
one billionth
|
0.000 000 001
|
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