Weights and Measures


U.S. Common Weights and Measures
UNIT ABBR EQUIVALENT METRIC
LENGTH      
inch in .083 ft, .027 yd 2.54 cm
foot ft 12 in, .333 yd 30.48 cm
yard yd 3 ft, 36 in .914 m
rod rd 16.5 ft, 5.5 yd 5.029 m
mile mi 5280 ft, 320 rd, 1760 yd 1.609 km
AREA
square inch sq in .007 sq ft, .00077 sq yd 6.451 sq cm
square foot sq ft 144 sq in, .111 sq yd .093 sq m
square yard sq yd 1296 sq in, 9 sq ft .836 sq m
square rod sq rd 30.25 sq yd, .006 acres 25.293 sq m
acre 43,560 sq ft, 4840 sq yd .405 ha,
4047 sq m
square mile sq mi 102,400 sq rd, 640 acres 2.59 sq km
VOLUME
cubic inch cu in .00058 cu ft, .000021 cu yd 16.387 cu cm
cubic foot cu ft 1728 cu in, .037 cu yd .028 cu m
cubic yard cu yd 27 cu ft, 46,656 cu in .765 cu m
WEIGHT
ounce oz .0625 lb 28.349 gm
pound lb 16 oz .453 kg
short
hundredweight 100 lb, .05 short ton 45.359 kg
long
hundredweight 112 lb, .05 long ton 50.802 kg
short ton 2,000 lb, 20 short
hundredweight .907 MT
long ton 2240 lb, 20 long
hundredweight 1.016 MT
LIQUID CAPACITY
fluid ounce fl oz .25 gi, .0625 pt (1.804 cu in) 29.573 ml
gill gi 4 fl oz, .25 pt (7.218 cu in) 118.291 ml
pint pt 16 fl oz, 4 gi (28.875 cu in) .473 l
quart qt 8 gi, 2 pt ( 57.75 cu in) .946 l
gallon gal 8 pt, 4 qt (231 cu in) 3.785 l
DRY CAPACITY
pint pt .5 qt (33.6 cu in) .55 l
quart qt 2 pt (67.2 cu in) 1.02 l
peck pk 16 pt, 8 qt (537.605 cu in) 8.809 l
bushel bu 32 qt, 4 pk (2150.42 cu in) 35.238 l
Metric Weights and Measures
UNIT ABBR EQUIVALENT U.S.
LENGTH
millimeter mm .001 m .04 in
centimeter cm .01 m .39 in
decimeter dm .1 m 3.94 in
meter m 100 cm, 10 dm 39.37 in
dekameter dam 10 m 32.81 ft
hectometer hm 100 m 109.36 yd
kilometer km 1,000 m .62 mi
myriameter mym 10,000 m 6.2 mi
AREA
square centimeter sq cm .0001 sq m .155 sq in
centare ca 1 sq m 10.76 sq ft
are a 100 sq m 119.6 sq yd
hectare ha 10,000 sq m 2.47 acre
square kilometer sq km 1,000,000 sq m .3861 sq mi
VOLUME
cubic centimeter cu cm .000001 cu m .061 cu in
decistere ds .1 cu m 3.53 cu ft
stere s 1 cu m 1.31.cu yd
dekastere das 10 cu m 13.1 cu yd
WEIGHT
gram gm .001 kg .035 oz
dekagram dag 10 gm .353 oz
hectogram hg 100 gm 3.527 oz
kilogram kg 1,000 gm 2.2046 lb
quintal q 100,000 gm 220.46 lb
metric ton MT 1,000,000 gm 1.1 ton
LIQUID CAPACITY
mililiter ml .001 l .0338 fl oz
centaliter cl .01 l .338 fl oz
deciliter dl .1 l .21 pt, .106 qt
liter l 10 dl, .1 dal 1.057 qt, .264 gal
dekaliter dal 10 l 2.64 gal
hectoliter hl 100 l 26.4 gal
kiloliter kl 1,000 l 264 gal
DRY CAPACITY
mililiter ml .001 l .0018 pt
centaliter cl .01 l .018 pt
deciliter dl .1 l .18 pt
liter l 10 dl, .1 dal .908 qt
dekaliter dal 10 l 1.14 pk
hectoliter hl 100 l 2.84 bu
kiloliter kl 1,000 l 29.4 bu

Conversion Factors, Equivalents, and Standards

12 in = 1 ft

3 ft = 1 yd

16.5 ft = 1 rd

5280 ft = 1 mi

144 sq in = 1 sq ft

9 sq ft = 1 sq yd

1728 cu in = 1 cu ft

27 cu ft = 1 cu yd

231 cu in = 1 gal

1 in = 2.5399 cm

1 ft = 30.479 cm

1 yd = .9144 m

1 mi = 1609.3 m

1 mi = 1.6093 km

1 mm = .03937 in

1 cm = .3937 in

1 m = 39.3708 in

1 m = 3.2809 ft

1 m = 1.0936 yd

1 km = .6215 mi

1 sq in = 6.451 sq cm

1 sq cm =.155 sq in

1 cu in = 16.3862 cu cm

1 oz = 28.3495 gm

1 lb = 453.593 gm

1 kg = 2.2046 lb

1 cu ft of water weighs 62.4 lb.

Water freezes at 32 F (0 C).

Water boils at 212 F (100 C).

60 mi/hr = 88 ft/sec, 1 mi/min

Acceleration due to gravity is 9.81 meters (32 ft) per second per second.

The speed of sound (Mach 1) at sea level is 1,088 ft/sec at 32F.

Light travels at 299,792.548 km (186,282 mi) per second.

e (Base of the Natural Logarithm) = 2.71828

p (pi) = 3.14159265

Circumference of a Circle = 2p r

Area of a Circle = p r2 or 1/4(p d2)

Surface of a Sphere = 4p r2

Volume of a Sphere = 1/6(p d3)

1 Mile (Land Mile, Statute Mile) = 5,280 feet, 1,760 yards, 1,609 meters

1 Nautical Mile (Air Mile, Sea Mile) = 1,852 meters, 6,076.115 feet

1 Nautical Mile per Hour (knot, kn, kt) = 1.15 statute mi/hr, 1.85 km/hr

1 F = -17.222 C

1 C = 33.8 F

Celsius = 5/9 (Fahrenheit – 32)

Fahrenheit (F)

Celsius (C)

   

Celsius (C)

Fahrenheit (F)

                   

0

 

-18

     

-18

 

0

 

10

 

-12

     

0

 

32

 

20

 

-7

     

5

 

41

 

30

 

-1

     

15

 

59

 

32

 

0

     

20

 

68

 

40

 

4

     

30

 

86

 

50

 

10

     

40

 

104

 

60

 

16

     

50

 

122

 

70

 

21

     

60

 

140

 

80

 

27

     

70

 

158

 

90

 

32

     

80

 

176

 

100

 

38

     

90

 

194

 

120

 

49

     

100

 

212

 

140

 

60

             

160

 

71

             

180

 

82

             

200

 

93

             

212

 

100

         

The Earth:

Circumference at the Equator: 24,901.45 mi, 40,066.43 km

Total Land Area: 57,900,000 sq mi, 150,100,00 sq km

Total Water Area: 147,750,000 sq mi, 382,672,500 sq km (75% of the surface)

Type of Water: 97% Salt, 3% Fresh

Atmosphere: 78% Nitrogen, 21% Oxygen, .9% argon, .03% carbon dioxide

Layers of the Atmosphere:

Troposphere – 10 mi, 16 km

Stratosphere – 30 mi, 50 km

Ionosphere 6,000 mi, 9,600 km

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