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USEFUL CONVERSION FACTORS AND TABLES

 

Weight
1 lb. (pound) = .45359 kgs. (kilograms)
1 kg. (kilogram) = 2.20462 lbs. (pounds)
 
1 short ton (US) = 2,000 lbs. = 907.185 kg.
1 metric ton = 2,204.62 lbs. = 1,000 kg.
1 long ton = 2,240 lbs. = 1,016.05 kg.

 

Breaking Force
1 kN (kilonewton) = 101.972 kgf (kilogram/force)
1 kN (kilonewton) = 224.809 pounds/fource
 
1 kip = 1,000 lbs.
1 kpf = .4536 lbs. pounds/force

 

Mass/Unit Length
1 Inch = 25.4 mm = 1 mm (millimeter) = .03937 inch
1 Foot = .3048 m (meter) = 1 cm (centimeter) = .3937 inch
 
1 Yard = .9144 m (meter) = 1 m (kilometer) = 3.28084 ft = 39.3701 in
1 Mile      
 
1 Rod = 5.5 yards = 16.5 ft.
1 Chain = 22 yards = 66 ft.
1 Shot = 90 foot = 15 fathoms

 

Area
1 sq. in. (square inch) = 645.16 mm2 (square millimeter)
1 sq. ft. (square foot) = .0929 m2 (square meter)
1 m2 (square meter) = 10.7639 ft2 (square feet)
 
1 acre = 43,560 sq. ft. = 4,046.86 sq. meters
1 hectare = 10,000 sq. meters = 2.47 acres

 

Tensile Grade
1770 N/mm2 = 180 kp/mm2 = IPS breaking strength
1960 N/mm2 = 200 kp/mm2 = EIPS breaking strength
2160 N/mm2 = 220 kp/mm2 = EEIPS breaking strength

 

Zinc Weight
1 gram/square meter = .0032765 oz/square ft.
1 oz/sq. ft. = 305.15686 grams/square meter

 

Inch Decimals of
an Inch
Millimeters   Inch Decimals of
an Inch
Millimeters Inch Decimals of
an Inch
Millimeters
-- .03937 1.0 -- .708661 18.0 -- 1.614173 41.0
1/16 .0625 1.587 -- .748031 19.0 1 5/8 1.625 41.275
-- .07874 2.0 3/4 .75 19.05 -- 1.653543 42.0
3/32 .09375 2.381 -- .787402 20.0 -- 1.692913 43.0
-- .11811 3.0 -- .826772 21.0 -- 1.732283 44.0
1/8 .125 3.175 -- .866142 22.0 1 3/4 1.75 44.45
5/32 .15625 3.968 7/8 .875 22.225 -- 1.771654 45.0
-- .15748 4.0 -- .905512 23.0 -- 1.811024 46.0
3/16 .187 4.762 15/16 .9375 23.812 -- 1.850394 47.0
-- .19685 5.0 -- .944882 24.0 1 7/8 1.875 47.625
7/32 .21875 5.556 -- .984252 25.0 -- 1.889764 48.0
-- .23622 6.0 1 1.00 25.4 -- 1.929134 49.0
1/4 .25 6.35 -- 1.023622 26.0 -- 1.968504 50.0
-- .275591 7.0 -- 1.062992 27.0 2 2.00 50.80
9/32 .28125 7.143 -- 1.102362 28.0 -- 2.007874 51.0
5/16 .3125 7.937 1 1/8 1.125 28.575 -- 2.047244 52.0
-- .314961 8.0 -- 1.141732 29.0 -- 2.086614 53.0
-- .354331 9.0 -- 1.181102 30.0 2 1/8 2.125 53.975
3/8 .375 9.525 -- 1.220472 31.0 -- 2.125984 54.0
-- .393701 10.0 1 1/4 1.25 31.75 -- 2.165354 55.0
-- .433071 11.0 -- 1.259843 32.0 -- 2.204724 56.0
7/16 .4375 11.112 -- 1.299213 33.0 -- 2.244094 57.0
-- .472441 12.0 -- 1.338583 34.0 2 1/4 2.25 57.15
1/2 .50 12.70 1 3/8 1.375 34.925 -- 2.283465 58.0
-- .511811 13.0 -- 1.377953 35.0 -- 2.322835 59.0
-- .551181 14.0 -- 1.417323 36.0 -- 2.362205 60.0
9/16 .5625 14.287 -- 1.456693 37.0 2 3/8 2.375 60.325
-- .590551 15.0 -- 1.496063 38.0 -- 2.401575 61.0
5/8 .625 15.875 1 1/2 1.50 38.10 -- 2.440945 62.0
-- .629921 16.0 -- 1.535433 39.0 -- 2.480315 63.0
-- .669291 17.0 -- 1.574803 40.0 2 1/2 2.50 63.5

 

Temperatures
Fahrenheit Celcius
806 430
608 320
212 100
100 38
86 30
75 24
68 20
59 15
50 10
41 5
32 0
14 -10
-4 -20
-22 -30
-40 -40
-50 -58
-250 -418


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