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TM 9-254
5-4.
Conversion Factors - Continued
Table 5-5. Conversion Factors - Continued
Conversely,
To convert
Into
Multiply by
multiply by
Square feet
Square miles
3.587 X 10-8
27.88 X 106
Square feet
Square yards
11.11 X 10-2
9
Square inches
Circular mils
1.273 X 106
7.854 X 10-7
Square inches
Square centimeters
6.452
0.155
Square inches
Square mils
106
10-6
Square inches
Square millimeters
645.2
1.55 X 10-3
Square kilometers
Square miles
0.3861
2.59
Square meters
Square yards
1.196
0.8361
Square miles
Acres
640
1.562 X 10-3
Square miles
Square yards
3.098 X 106
3.228 X 10-7
Square millimeters
Circular mils
1973
5.067 X 10-4
Square millimeters
Square centimeters
0.01
100
Square mils
Circular mils
1.273
0.7854
Tons (long)
Pounds (avdp.)
2240
4.464 X 10-4
Tons (short)
Pounds
2,000
5 X 104
Tons (metric)
Pounds
2204.63
4.536 X 104
Varas
Feet
2.7777
0.36
Volts
Kilovolts
10-3
103
Volts
Microvolts
106
10-6
Volts
Millivolts
10
10-3
Watts
Btu per hour
3.413
0.293
Watts
Btu per minute
5.689 X 10-2
17.58
Watts
Ergs per second
107
10-7
5-13
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