Conversion Factors

Table A.2   The Relationship Between English and Metric Length Units   Both four and eight digits are given for each relationship. Four digits will be used for almost all of the English‑metric conversions done in this text.

Metric

English

 

English

Metric

kilometer (km)

0.6214 mi
0.62137119 mi

 

mile (mi)

1.609 km
1.609344 km (exact)

 

3281 ft
3280.8399 ft

   

1609 m
1609.344 m (exact)

meter (m)

3.281 ft
3.2808399 ft

     
 

39.37 in.
39.370079 in.

 

yard (yd)

0.9144 m (exact)

 

1.094 yd
1.0936133 yd

   

91.44 cm (exact)

centimeter (cm)

0.3937 in.
0.39370079 in.

     
 

0.03281 ft
0.032808399 ft

 

foot (ft)

30.48 cm (exact)

millimeter (mm)

3.937 x 10-2 in.
3.9370079 x 10-2 in.

   

0.3048 m (exact)

micrometer (mm)

3.937 x 10-5 in.
3.9370079 x 10-5 in.

     

nanometer (nm)

3.937 x 10-8 in.
3.9370079 x 10-8 in.

 

inch (in.)

2.54 cm (exact)

       

0.0254 m (exact)

Table A.3   The Relationship Between English Mass Units and Metric Mass Units   Both four and eight digits are given for each relationship. Four digits will be used for almost all of the English‑metric conversions done in this text.

Metric Mass

English Mass

 

English Mass

Metric Mass

metric ton (ton)

1.102 ton (short)
1.1023113 ton (short)

 

ton (ton)

0.9072 metric tons
0.90718474 metric tons

 

2205 lb
2204.6226 lb

   

907.2 kg
907.18474 kg

kilogram (kg)

2.205 lb
2.2046226 lb

     
 

0.001102 ton
0.0011023113 ton

 

pound (lb)

453.6 g
453.59237 g

gram (g)

0.002205 lb
0.0022046226 lb

 

 

0.4536 kg
0.45359237 kg

 

0.03527 oz
0.035273962 oz

     

milligram (mg)

3.527 x 10-5 oz
3.5273962  x 10-5 oz

 

ounce (oz)

28.35 g
28.349523 g

microgram (mg)

3.527 x 10-8 oz
3.5273962  x 10-8 oz

   

2.835 x 104 mg
2.8349523  x 104
mg

Table A.4   The Relationship Between English and Metric Volume Units   Both four and seven digits are given for each relationship. Four digits will be used for almost all of the English‑metric conversions done in this text.

Metric

English

 

English

Metric

liter (L)

1.057 qt
1.056718 qt

 

gallon * (gal)

3.785 L
3.785306 L

 

0.2642 gal
0.2641795 gal

   

3785 mL
3785.306 mL

 

33.81 fl oz
33.81498 fl oz

 

quart * (qt)

0.9463 L
0.9463264 L

 

61.03 cu in.
61.02545 cu in.

   

946.3 mL
946.3264 mL

milliliter (mL)

0.03381 fl oz
0.03381497 fl oz

 

fluid ounce * (fl oz)

0.02957 L
0.02957270 L

 

0.06103 cu in.
0.06102545 cu in.

   

29.57 mL
29.57270 mL

microliter ( mL)

3.381 x 10-5 fl oz
3.381497 x 10-5 fl oz

 

cubic inch (cu in.)

16.39 cm3
16.387064 cm3 (exact)

cubic centimeter (cm3)

0.03381 fl oz
0.03381497 fl oz

   

16.39 mL
16.387064 mL (exact)

 

0.06103 cu in.
0.06102545 cu in.

   

0.1634 L
0.16387064 L (exact)

* There are three kinds of gallons, quarts, and fluid ounces: British, U.S. dry, and U.S. liquid. The values given here are for U.S. liquid gallons, quarts, and fluid ounces.