Conversions & Calcuations - Radiant Exposure, Irradiance, Temperature
 
RADIANT EXPOSURE CONVERSION TABLE
  J m-2 Wh m-2 cal cm-2 kcal m-2 BTU ft-2 langley erg cm-2
J m-2
1
2.778e-4
2.388e-5
2.388e-4
8.810e-5
2.388e-5
1000
Wh m-2
3600
1
0.08598
0.8598
0.3172
0.08598
3.600e6
cal cm-2
4.187e4
11.630
1
10
3.688
1
4.187e7
kcal m-2
4187
1.1630
0.1
1
0.3688
0.1
4.187e6
BTU ft-2
1.1351e4
3.153
0.2711
2.711
1
0.2711
1.1351e7
langley
4.187e4
11.630
1
10
3.688
1
4.187e7
erg cm-2
0.001
2.778e-7
2.388e-8
2.388e-7
8.810e-8
2.388e-8
1


IRRADIANCE CONVERSION TABLE
W m-2 Wh m-2 kW m-2 cal cm-2 min-1 BTU ft-2 h-1 erg cm-2 s-1 µW cm-2
W m-2
1
0.1
0.001
0.0014331
0.3172
1000
100
Wh m-2
10
1
0.01
0.014331
3.172
1e4
1000
kW m-2
1000
100
1
1.4331
317.2
1e6
1e5
cal cm-2 min-1
697.8
69.78
0.6978
1
221.3
6.978e5
6.978e4
BTU ft-2 h-1
3.153
0.3153
0.003153
0.004519
1
3153
315.3
erg cm-2 s-1
0.001
1e-4
1e-6
1.4331e-6
3.172e-4
1
0.1
µW cm-2
0.01
0.001
1e-5
1.4331e-5
0.003172
10
1
1 cal cm-2 min-1= 1 langley min-1 .....................1W m-2 = 1 J s-1m-2


TEMPERATURE CONVERSION TABLE
°C =
(°F - 32) / 1.8
°F =
(°C * 1.8) + 32 Conversion Table Use
Find the units you have in the left column. Look across the table to find the units you wish to convert to. The value contained in that row and column is the multiplier that converts the units you have to the units you want.
Example
To convert 60 degrees C to degrees F, multiply by 1.8 and add 32.
(60°C * 1.8) + 32 = 140°F
°C =
°K - 273.15
°F =
°R - 459.67
K =
°C + 273.15
°R =
°F + 459.67