Enter any number of hectopascals and the inches of mercury appear as you type. Press ⇄ to swap the direction, and see the step-by-step math under the result.
hPa
inHg
Step-by-step calculation
Advertisement
Advertisement
How to use the hPa to inHg Converter
Type a value in the Hectopascals box. The inches of mercury result appears instantly.
Going the other way? Type in the Inches of mercury box, or press the ⇄ swap button.
Set the precision with the decimal places menu.
Check the working in the step-by-step box, then press Copy result or click any row in the tables below.
Hectopascals to inches of mercury formula
inHg = hPa ÷ 33.86389
Take the value in hectopascals.
Divide it by 33.86389 (the number of hectopascals in one inch of mercury).
Example: 1,013.25 hPa ÷ 33.86389 = 29.9213 inHg.
Reverse formula (inches of mercury to hectopascals): hPa = inHg × 33.86389. Example: 29.53 inHg × 33.86389 = 1,000 hPa.
Quick mental estimate: divide by about 34. For exact answers use the converter above.
hPa to inHg conversion table (1–100)
Click any row to load it into the converter.
Hectopascals to inches of mercury
Hectopascals
Inches of mercury
1 hPa
0.0295 inHg
2 hPa
0.0591 inHg
3 hPa
0.0886 inHg
4 hPa
0.1181 inHg
5 hPa
0.1476 inHg
6 hPa
0.1772 inHg
7 hPa
0.2067 inHg
8 hPa
0.2362 inHg
9 hPa
0.2658 inHg
10 hPa
0.2953 inHg
11 hPa
0.3248 inHg
12 hPa
0.3544 inHg
13 hPa
0.3839 inHg
14 hPa
0.4134 inHg
15 hPa
0.4429 inHg
16 hPa
0.4725 inHg
17 hPa
0.502 inHg
18 hPa
0.5315 inHg
19 hPa
0.5611 inHg
20 hPa
0.5906 inHg
21 hPa
0.6201 inHg
22 hPa
0.6497 inHg
23 hPa
0.6792 inHg
24 hPa
0.7087 inHg
25 hPa
0.7382 inHg
26 hPa
0.7678 inHg
27 hPa
0.7973 inHg
28 hPa
0.8268 inHg
29 hPa
0.8564 inHg
30 hPa
0.8859 inHg
31 hPa
0.9154 inHg
32 hPa
0.945 inHg
33 hPa
0.9745 inHg
34 hPa
1.004 inHg
35 hPa
1.0335 inHg
36 hPa
1.0631 inHg
37 hPa
1.0926 inHg
38 hPa
1.1221 inHg
39 hPa
1.1517 inHg
40 hPa
1.1812 inHg
41 hPa
1.2107 inHg
42 hPa
1.2403 inHg
43 hPa
1.2698 inHg
44 hPa
1.2993 inHg
45 hPa
1.3288 inHg
46 hPa
1.3584 inHg
47 hPa
1.3879 inHg
48 hPa
1.4174 inHg
49 hPa
1.447 inHg
50 hPa
1.4765 inHg
51 hPa
1.506 inHg
52 hPa
1.5356 inHg
53 hPa
1.5651 inHg
54 hPa
1.5946 inHg
55 hPa
1.6241 inHg
56 hPa
1.6537 inHg
57 hPa
1.6832 inHg
58 hPa
1.7127 inHg
59 hPa
1.7423 inHg
60 hPa
1.7718 inHg
61 hPa
1.8013 inHg
62 hPa
1.8309 inHg
63 hPa
1.8604 inHg
64 hPa
1.8899 inHg
65 hPa
1.9194 inHg
66 hPa
1.949 inHg
67 hPa
1.9785 inHg
68 hPa
2.008 inHg
69 hPa
2.0376 inHg
70 hPa
2.0671 inHg
71 hPa
2.0966 inHg
72 hPa
2.1262 inHg
73 hPa
2.1557 inHg
74 hPa
2.1852 inHg
75 hPa
2.2147 inHg
76 hPa
2.2443 inHg
77 hPa
2.2738 inHg
78 hPa
2.3033 inHg
79 hPa
2.3329 inHg
80 hPa
2.3624 inHg
81 hPa
2.3919 inHg
82 hPa
2.4215 inHg
83 hPa
2.451 inHg
84 hPa
2.4805 inHg
85 hPa
2.51 inHg
86 hPa
2.5396 inHg
87 hPa
2.5691 inHg
88 hPa
2.5986 inHg
89 hPa
2.6282 inHg
90 hPa
2.6577 inHg
91 hPa
2.6872 inHg
92 hPa
2.7168 inHg
93 hPa
2.7463 inHg
94 hPa
2.7758 inHg
95 hPa
2.8053 inHg
96 hPa
2.8349 inHg
97 hPa
2.8644 inHg
98 hPa
2.8939 inHg
99 hPa
2.9235 inHg
100 hPa
2.953 inHg
Inches of mercury to hectopascals
Inches of mercury
Hectopascals
1 inHg
33.8639 hPa
2 inHg
67.7278 hPa
3 inHg
101.5917 hPa
4 inHg
135.4556 hPa
5 inHg
169.3195 hPa
6 inHg
203.1833 hPa
7 inHg
237.0472 hPa
8 inHg
270.9111 hPa
9 inHg
304.775 hPa
10 inHg
338.6389 hPa
11 inHg
372.5028 hPa
12 inHg
406.3667 hPa
13 inHg
440.2306 hPa
14 inHg
474.0945 hPa
15 inHg
507.9584 hPa
16 inHg
541.8222 hPa
17 inHg
575.6861 hPa
18 inHg
609.55 hPa
19 inHg
643.4139 hPa
20 inHg
677.2778 hPa
21 inHg
711.1417 hPa
22 inHg
745.0056 hPa
23 inHg
778.8695 hPa
24 inHg
812.7334 hPa
25 inHg
846.5973 hPa
26 inHg
880.4611 hPa
27 inHg
914.325 hPa
28 inHg
948.1889 hPa
29 inHg
982.0528 hPa
30 inHg
1,015.9167 hPa
31 inHg
1,049.7806 hPa
32 inHg
1,083.6445 hPa
33 inHg
1,117.5084 hPa
34 inHg
1,151.3723 hPa
35 inHg
1,185.2362 hPa
36 inHg
1,219.1 hPa
37 inHg
1,252.9639 hPa
38 inHg
1,286.8278 hPa
39 inHg
1,320.6917 hPa
40 inHg
1,354.5556 hPa
41 inHg
1,388.4195 hPa
42 inHg
1,422.2834 hPa
43 inHg
1,456.1473 hPa
44 inHg
1,490.0112 hPa
45 inHg
1,523.8751 hPa
46 inHg
1,557.7389 hPa
47 inHg
1,591.6028 hPa
48 inHg
1,625.4667 hPa
49 inHg
1,659.3306 hPa
50 inHg
1,693.1945 hPa
51 inHg
1,727.0584 hPa
52 inHg
1,760.9223 hPa
53 inHg
1,794.7862 hPa
54 inHg
1,828.6501 hPa
55 inHg
1,862.514 hPa
56 inHg
1,896.3778 hPa
57 inHg
1,930.2417 hPa
58 inHg
1,964.1056 hPa
59 inHg
1,997.9695 hPa
60 inHg
2,031.8334 hPa
61 inHg
2,065.6973 hPa
62 inHg
2,099.5612 hPa
63 inHg
2,133.4251 hPa
64 inHg
2,167.289 hPa
65 inHg
2,201.1529 hPa
66 inHg
2,235.0167 hPa
67 inHg
2,268.8806 hPa
68 inHg
2,302.7445 hPa
69 inHg
2,336.6084 hPa
70 inHg
2,370.4723 hPa
71 inHg
2,404.3362 hPa
72 inHg
2,438.2001 hPa
73 inHg
2,472.064 hPa
74 inHg
2,505.9279 hPa
75 inHg
2,539.7918 hPa
76 inHg
2,573.6556 hPa
77 inHg
2,607.5195 hPa
78 inHg
2,641.3834 hPa
79 inHg
2,675.2473 hPa
80 inHg
2,709.1112 hPa
81 inHg
2,742.9751 hPa
82 inHg
2,776.839 hPa
83 inHg
2,810.7029 hPa
84 inHg
2,844.5668 hPa
85 inHg
2,878.4307 hPa
86 inHg
2,912.2945 hPa
87 inHg
2,946.1584 hPa
88 inHg
2,980.0223 hPa
89 inHg
3,013.8862 hPa
90 inHg
3,047.7501 hPa
91 inHg
3,081.614 hPa
92 inHg
3,115.4779 hPa
93 inHg
3,149.3418 hPa
94 inHg
3,183.2057 hPa
95 inHg
3,217.0696 hPa
96 inHg
3,250.9334 hPa
97 inHg
3,284.7973 hPa
98 inHg
3,318.6612 hPa
99 inHg
3,352.5251 hPa
100 inHg
3,386.389 hPa
Common values
Hectopascals
Inches of mercury
Example
950 hPa
28.05 inHg
Strong storm
980 hPa
28.94 inHg
Low pressure
1,000 hPa
29.53 inHg
1,000 hPa
1,013.25 hPa
29.92 inHg
Standard sea-level pressure
1,020 hPa
30.12 inHg
High pressure
1,040 hPa
30.71 inHg
Very high pressure
About hectopascals and inches of mercury
Hectopascals (hPa). The hectopascal is 100 pascals and equals exactly one millibar. Weather maps and forecasts worldwide give air pressure in hPa; standard sea-level pressure is 1013.25 hPa.
Inches of mercury (inHg). Inches of mercury (inHg) are used for barometric pressure in US weather reports and aviation altimeters. Standard sea-level pressure is 29.92 inHg.
Frequently asked questions
How many inches of mercury in 1 hectopascal?
One hectopascal equals 0.02953 inches of mercury. Looking at it the other way, one inch of mercury is 33.8639 hectopascals.
How do you convert hectopascals to inches of mercury?
Divide the number of hectopascals by 33.86389. For example, 1,013.25 hPa ÷ 33.86389 = 29.9213 inHg.
What is 1,000 hectopascals in inches of mercury?
1,000 hPa is 29.53 inHg.
How do I convert inches of mercury back to hectopascals?
Multiply by 33.86389, or press the ⇄ swap button above. For example, 29.53 inHg × 33.86389 = 1,000 hPa.
What is normal barometric pressure?
Standard sea-level pressure is 1013.25 hPa, which equals 29.92 inHg. Weather systems usually range from about 980 hPa (stormy) to 1040 hPa (very settled).
Is this converter free and private?
Yes. It is free with no sign-up, and every calculation runs in your browser, so nothing you type is sent to a server.