Vapour Pressure of Water - Table of Water Vapour Pressures

Table of Water Vapour Pressures

The following table list water vapour pressure in units of kPa and mmHg as a function of temperature in degrees Celsius.

Temperature
(°C)
Vapour
pressure
(kPa)
Vapour
pressure
(mmHg)
0 0.6 4.5
3 0.8 6.0
5 0.9 6.8
8 1.1 8.3
10 1.2 9.0
12 1.4 10.5
14 1.6 12.0
16 1.8 13.5
18 2.1 15.8
19 2.2 16.5
20 2.3 17.3
21 2.5 18.8
22 2.6 19.5
23 2.8 21.0
24 3.0 22.5
25 3.2 24.0
26 3.4 25.5
27 3.6 27.0
28 3.8 28.5
29 4.0 30.0
30 4.2 31.5
32 4.8 36.0
35 5.6 42.0
40 7.4 55.5
50 12.3 92.3
60 19.9 149.3
70 31.2 234.1
80 47.3 354.9
90 70.1 525.9
100 101.3 760.0

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