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More Conversions
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|
Angle
|
|
Unit
|
degree
|
minute
|
second
|
radian
|
revolution
|
|
1 degree
|
1
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60
|
3600
|
1·745 x 10-2
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2·778 x 10-3
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|
1 minute
|
1·667 x 10-2
|
1
|
60
|
2·909 x 10-4
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4·630 x 10-5
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|
1 second
|
2·778 x 10-4
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1·667 x 10-2
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1
|
4·848 x 10-6
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7·716 x 10-7
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|
1 radian
|
57·30
|
3438
|
2·063 x 105
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1
|
0·1592
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|
1 revolution
|
360
|
2·16 x 104
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1·296 x 106
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6·283
|
1
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1 right angle = 90° : 1 grade = 0·01 right angle·
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|
Time
|
|
Unit
|
second
|
minute
|
hour
|
solar day
|
year
|
|
1 second
|
1
|
1·667 x 10-2
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2·778 x 10-4
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1·157 x 10-5
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3·169 x 10-8
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|
1 minute
|
60
|
1
|
1·667 x 10-2
|
6·944 x 10-4
|
1·901 x 10-6
|
|
1 hour
|
3,600
|
60
|
1
|
4·167 x 10-2
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1·141 x 10-4
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|
1 solar day
|
86,400
|
1,440
|
24
|
1
|
2·738 x 10-3
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|
1 hour
|
3·156 x 107
|
525,900
|
8,766
|
365·24
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1
|
|
|
Force
|
|
Unit
|
newton
|
dyne
|
poundal
|
kg force
|
lb force
|
|
1 newton
|
1
|
105
|
7·233
|
0·1020
|
0·2248
|
|
1 dyne
|
10-5
|
1
|
7·233 x 10-5
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1·020 x 10-6
|
2·248 x 10-6
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|
1 poundal
|
0·1383
|
13830
|
1
|
0·01410
|
0·03108
|
|
1 kg force
|
9·807
|
980700
|
70·93
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1
|
2·205
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|
1 lb force
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4·448
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4·448 x 105
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32·17
|
0·4536
|
1
|
|
|
Energy, Work, Heat
|
|
Unit
|
joule
|
kW· hr
|
ft lb
|
calory
|
B·t·u
|
|
1 joule
|
1
|
2·778 x 10-7
|
0·7376
|
0·2389
|
9·478 x 10-4
|
|
1 kW· hr
|
3·600 x 106
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1
|
2·655 x 106
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8·598 x 105
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3412
|
|
1 ft lb
|
1·356
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3·766 x 10-7
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1
|
0·3238
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1·285 x 10-3
|
|
1 calory
|
4·187
|
1·163 x 10-6
|
3·088
|
1
|
3·968 x 10-3
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|
1 B·t·u·
|
1055
|
2·931 x 10-4
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778·2
|
252
|
1
|
1 kW· hr (kilowatt hour) is 1 unit (Board of Trade unit) as measured by the electricity meter·
1 B·t·u· is a British thermal unit and is the amount of heat required to raise the temperature of 1 lb of water by 1o F·
1 Therm is 100,000 B·t·u's and is equivalent to the heat generated by 29·3 units of electricity·
1 calorie is the heat required to raise the temperature of 1 gm of water by 1o C· The calorie as used by weightwatchers is actually 1,000 calories as defined above·
1 erg id 10-7 joule·
1 electron volt (eV) is 1·6 x 10-19 joule
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|
Pressure
|
|
Unit
|
pascal
|
millibar
|
atmosphere
|
torr
|
lb/sq in
|
|
1 pascal
|
1
|
0·01
|
9·869 x 10-6
|
7·501 x 10-3
|
1·450 x 10-4
|
|
1 millibar
|
100
|
1
|
9·869 x 10-4
|
0·7501
|
0·01450
|
|
1 atmosphere
|
101,300
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1013
|
1
|
760
|
14·7
|
|
1 torr
|
133·3
|
1·333
|
1·316 x 10-3
|
1
|
0·01934
|
|
1 lb/sq in
|
6895
|
68·95
|
0·06895
|
51·72
|
1
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1 pascal = 1 newton/sq metre = 10 dyne/sq cm
1 torr is the pressure due to 1 mm of mercury·
By atmosphere is meant "standard atmosphere" which is 760 mm or 29·92 inches of mercury·
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