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Convert between metric and English units using a
metric conversion table.
This page features tables for converting between metric system units and
corresponding English units commonly used in the United States. Here you
will find convenient conversion tables for
length,
area,
volume,
weight,
pressure,
energy,
and temperature units. Conversion table
calculations show approximately three (3) significant figures.
Length Conversion
Metric length units include the meter, the kilometer (1,000 meters), the
decimeter (0.1 meters), the centimeter (0.01 meters), the millimeter (0.001
meters), the micron (0.000001 meters), the nanometer (0.000000001 or 1e-9
meters), and the angstrom (0.0000000001 or 1e-10 meters).
British and American length units include the foot, the yard (3 feet),
the furlong (660 feet), the mile (5,280 feet), the league (15,840 feet), and
the inch (1/12th foot).
| Length Conversion Table |
| Metric Units |
English Units |
| Kilometers |
Meters |
Millimeters |
Inches |
Feet |
Yards |
Miles |
| 1 |
1,000 |
1,000,000 |
39,370 |
3,281 |
1,094 |
0.6214 |
| 0.001 |
1 |
1,000 |
39.37 |
3.281 |
1.094 |
0.0006214 |
| 0.000001 |
0.001 |
1 |
0.03937 |
0.003281 |
0.001094 |
6.214e-7 |
| |
| 0.0000254 |
0.0254 |
25.4 |
1 |
0.08333 |
0.02778 |
0.00001578 |
| 0.0003048 |
0.3048 |
304.8 |
12 |
1 |
0.3333 |
0.0001894 |
| 0.0009144 |
0.9144 |
914.4 |
36 |
3 |
1 |
0.0005682 |
| 1.609 |
1,609 |
1,609,000 |
63,360 |
5,280 |
1,760 |
1 |
See also
Metric Distance Unit Conversions.
Area Conversion
Metric area units include the are and the hectare (100 ares). One square
kilometer is equivalent to 100 hectares.
The area unit commonly used in the USA is the acre (4840 square yards).
One square mile is equivalent to 640 acres.
| Area Conversion Table |
| Metric Units |
English Units |
| Square Kilometers |
Hectares |
Ares |
Square Yards |
Acres |
Square Miles |
| 1 |
100 |
10,000 |
1,196,000 |
247.1 |
000.386 |
| 0.01 |
1 |
100 |
11,960 |
2.471 |
0.00386 |
| 0.0001 |
0.01 |
1 |
119.6 |
0.02471 |
0.0000386 |
| |
| 8.361e-7 |
0.00008361 |
0.008361 |
1 |
0.0002066 |
3.228e-7 |
| 0.004047 |
0.4047 |
40.47 |
4,840 |
1 |
0.0015625 |
| 2.59 |
259 |
25,900 |
3,097,600 |
640 |
1 |
See also
Metric Area Unit Conversions.
Volume Conversion
Metric volume units include the liter, the decaliter (10 liters), the
hectoliter (100 liters), the deciliter (0.1 liters), the centiliter (0.01
liters), the milliliter (0.001 liters), and the microliter (0.000001 liters.
A liter is equivalent to 1 cubic decimeter.
Liquid measure units commonly used in the USA include the fluid ounce,
the pint (16 fluid ounces), the quart (32 fluid ounces), the gallon (128
fluid ounces), and the petroleum barrel (5376 fluid ounces). A gallon is
equivalent to 231 cubic inches.
| Volume Conversion Table (Liquid Measure) |
| Metric Units |
U.S. Liquid Measure Units |
| Liters |
Milliliters |
Fluid Ounces |
Quarts |
Gallons |
| 1 |
1,000 |
33.81 |
1.057 |
0.2642 |
| 0.001 |
1 |
0.03381 |
0.001057 |
0.0002642 |
| |
| 0.02957 |
29.57 |
1 |
0.03125 |
0.007813 |
| 0.9464 |
946.4 |
32 |
1 |
0.25 |
| 3.785 |
3785 |
128 |
4 |
1 |
Dry measure units commonly used in the USA include the bushel, the peck
(0.25 bushels), the gallon (0.125 bushels), the quart (0.03125 bushels), the
pint (0.01562 bushels), and the gill (0.003906 bushels). A bushel is
equivalent to 2150 cubic inches.
| Volume Conversion Table (Dry Measure) |
| Metric Units |
U.S. Dry Measure Units |
| Liters |
Milliliters |
Quarts |
Pecks |
Bushels |
| 1 |
1,000 |
0.9081 |
0.1135 |
0.02838 |
| 0.001 |
1 |
0.0009081 |
0.0001135 |
0.00002838 |
| |
| 1.101 |
1101 |
1 |
0.125 |
0.03125 |
| 8.81 |
8810 |
8 |
1 |
0.25 |
| 35.24 |
35,240 |
32 |
4 |
1 |
See also
Metric Volume Unit Conversions.
Weight Conversion
Metric weight units include the gram, the kilogram (1,000 grams), the
tonne (1,000,000 grams), the carat (0.2 grams), the centigram (0.01 grams),
the milligram (0.001 grams), and the microgram (0.000001 grams).
Avoirdupois weight units commonly used in the USA include the pound, the
stone (14 pounds), the short hundredweight (100 pounds), the short ton
(2,000 pounds), the ounce (1/16th pound), the dram (1/256th pound), and the
grain (1/7000th pound).
| Weight Conversion Table |
| Metric Units |
Avoirdupois Units |
| Tonnes |
Kilograms |
Grams |
Ounces |
Pounds |
Short Tons |
| 1 |
1,000 |
1,000,000 |
35,270 |
2,205 |
1.102 |
| 0.001 |
1 |
1,000 |
35.27 |
2.205 |
0.001102 |
| 0.000001 |
0.001 |
1 |
0.03527 |
0.002205 |
1.102e-6 |
| |
| 0.00002835 |
0.02835 |
28.35 |
1 |
0.0625 |
0.00003125 |
| 0.0004536 |
0.4536 |
453.6 |
16 |
1 |
0.0005 |
| 0.0004536 |
907.2 |
907,200 |
32,000 |
2,000 |
1 |
Metric "weight" units are, more correctly, known as "mass" units. See
also
Metric Mass Unit Conversions.
Pressure Conversion
Metric pressure units include the bar, the millibar (0.001 bars), and the
pascal (0.00001 bars). One bar is equivalent to 10,200 kilograms per square
meter.
The pressure units commonly used in the USA include the inch of mercury
and the atmosphere (29.92 inches of mercury). One atmosphere is equivalent
to 14.7 pounds per square inch.
| Pressure Conversion Table |
| Metric Units |
English Units |
| Bars |
Millibars |
Pascals |
Inches of Mercury |
Atmospheres |
| 1 |
1,000 |
100,000 |
29.53 |
0.9869 |
| 0.001 |
1 |
100 |
0.02953 |
0.0009869 |
| 0.00001 |
0.01 |
1 |
0.0002953 |
0.000009869 |
| |
| 0.03386 |
33.86 |
3,386 |
1 |
0.03342 |
| 1.013 |
1,013 |
101,300 |
29.92 |
1 |
See also
Metric Pressure Unit Conversions.
Energy Conversion
Metric energy units include the joule, the kilojoule (1000 joules), and
the megajoule (1000000 joules).
The energy units commonly used in the USA include the calorie and the
British Thermal Unit (BTU). A calorie is commonly defined as the amount of
heat energy required to raise the temperature of one gram of water by one
degree Celsius. However, the energy needed for this task depends on the
water's starting temperature. The thermochemical calorie is defined as
exactly 4.184 joules, but several other, slightly different definitions
exist as well. One calorie is equivalent to 3.088 foot-pounds; one BTU is
equivalent to 252 calories. Using this latter definition, one calorie is
equal to 4.187 joules.
| Energy Conversion Table |
| Metric Units |
English Units |
| Joules |
Calories |
BTUs |
| 1 |
0.2388 |
0.0009478 |
| |
| 4.187 |
1 |
0.003968 |
| 1055 |
252 |
1 |
See also
Metric Energy Unit Conversions.
Temperature Conversion
Metric temperature units include degrees Celsius and degrees Kelvin
(degrees Celsius plus 273.1). At sea level, the freezing temperature of
water is 0 degrees Celsius and the boiling point of water is 100 degrees
Celsius.
The temperature unit commonly used in the USA is Fahrenheit. At sea
level, the freezing temperature of water is 32 degrees Fahrenheit and the
boiling point of water is 212 degrees Fahrenheit.
| Temperature Conversion Table |
| Metric Units |
English Units |
| Celsius |
Kelvin |
Fahrenheit |
| -273.1 |
0 |
-459.7 |
| -50 |
223.1 |
-58 |
| -40 |
233.1 |
-40 |
| -30 |
243.1 |
-22 |
| -20 |
253.1 |
-4 |
| -10 |
263.1 |
14 |
| 0 |
273.1 |
32 |
| 10 |
283.1 |
50 |
| 20 |
293.1 |
68 |
| 30 |
303.1 |
86 |
| 40 |
313.1 |
104 |
| 50 |
323.1 |
122 |
| 100 |
373.1 |
212 |
See also
Metric Temperature Unit Conversions. |
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