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mmHg to kPa Converter

Enter any number of millimeters of mercury and the kilopascals appear as you type. Press ⇄ to swap the direction, and see the step-by-step math under the result.

Millimeters of mercuryFrom

mmHg

KilopascalsTo

kPa

Decimal places

Step-by-step calculation

How to use the mmHg to kPa Converter

Type a value in the Millimeters of mercury box. The kilopascals result appears instantly.
Going the other way? Type in the Kilopascals 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.

Millimeters of mercury to kilopascals formula

kPa = mmHg ÷ 7.500615758

Take the value in millimeters of mercury.
Divide it by 7.500615758 (the number of millimeters of mercury in one kilopascal).

Example: 120 mmHg ÷ 7.500615758 = 15.9987 kPa.

Reverse formula (kilopascals to millimeters of mercury): mmHg = kPa × 7.500615758. Example: 18.6651 kPa × 7.500615758 = 140 mmHg.

Quick mental estimate: divide by about 7.5. For exact answers use the converter above.

mmHg to kPa conversion table (1–100)

Click any row to load it into the converter.

Millimeters of mercury to kilopascals

Millimeters of mercury	Kilopascals
1 mmHg	0.133 kPa
2 mmHg	0.267 kPa
3 mmHg	0.4 kPa
4 mmHg	0.533 kPa
5 mmHg	0.667 kPa
6 mmHg	0.8 kPa
7 mmHg	0.933 kPa
8 mmHg	1.067 kPa
9 mmHg	1.2 kPa
10 mmHg	1.333 kPa
11 mmHg	1.467 kPa
12 mmHg	1.6 kPa
13 mmHg	1.733 kPa
14 mmHg	1.867 kPa
15 mmHg	2 kPa
16 mmHg	2.133 kPa
17 mmHg	2.266 kPa
18 mmHg	2.4 kPa
19 mmHg	2.533 kPa
20 mmHg	2.666 kPa
21 mmHg	2.8 kPa
22 mmHg	2.933 kPa
23 mmHg	3.066 kPa
24 mmHg	3.2 kPa
25 mmHg	3.333 kPa
26 mmHg	3.466 kPa
27 mmHg	3.6 kPa
28 mmHg	3.733 kPa
29 mmHg	3.866 kPa
30 mmHg	4 kPa
31 mmHg	4.133 kPa
32 mmHg	4.266 kPa
33 mmHg	4.4 kPa
34 mmHg	4.533 kPa
35 mmHg	4.666 kPa
36 mmHg	4.8 kPa
37 mmHg	4.933 kPa
38 mmHg	5.066 kPa
39 mmHg	5.2 kPa
40 mmHg	5.333 kPa
41 mmHg	5.466 kPa
42 mmHg	5.6 kPa
43 mmHg	5.733 kPa
44 mmHg	5.866 kPa
45 mmHg	6 kPa
46 mmHg	6.133 kPa
47 mmHg	6.266 kPa
48 mmHg	6.399 kPa
49 mmHg	6.533 kPa
50 mmHg	6.666 kPa
51 mmHg	6.799 kPa
52 mmHg	6.933 kPa
53 mmHg	7.066 kPa
54 mmHg	7.199 kPa
55 mmHg	7.333 kPa
56 mmHg	7.466 kPa
57 mmHg	7.599 kPa
58 mmHg	7.733 kPa
59 mmHg	7.866 kPa
60 mmHg	7.999 kPa
61 mmHg	8.133 kPa
62 mmHg	8.266 kPa
63 mmHg	8.399 kPa
64 mmHg	8.533 kPa
65 mmHg	8.666 kPa
66 mmHg	8.799 kPa
67 mmHg	8.933 kPa
68 mmHg	9.066 kPa
69 mmHg	9.199 kPa
70 mmHg	9.333 kPa
71 mmHg	9.466 kPa
72 mmHg	9.599 kPa
73 mmHg	9.733 kPa
74 mmHg	9.866 kPa
75 mmHg	9.999 kPa
76 mmHg	10.133 kPa
77 mmHg	10.266 kPa
78 mmHg	10.399 kPa
79 mmHg	10.532 kPa
80 mmHg	10.666 kPa
81 mmHg	10.799 kPa
82 mmHg	10.932 kPa
83 mmHg	11.066 kPa
84 mmHg	11.199 kPa
85 mmHg	11.332 kPa
86 mmHg	11.466 kPa
87 mmHg	11.599 kPa
88 mmHg	11.732 kPa
89 mmHg	11.866 kPa
90 mmHg	11.999 kPa
91 mmHg	12.132 kPa
92 mmHg	12.266 kPa
93 mmHg	12.399 kPa
94 mmHg	12.532 kPa
95 mmHg	12.666 kPa
96 mmHg	12.799 kPa
97 mmHg	12.932 kPa
98 mmHg	13.066 kPa
99 mmHg	13.199 kPa
100 mmHg	13.332 kPa

Kilopascals to millimeters of mercury

Kilopascals	Millimeters of mercury
1 kPa	7.501 mmHg
2 kPa	15.001 mmHg
3 kPa	22.502 mmHg
4 kPa	30.002 mmHg
5 kPa	37.503 mmHg
6 kPa	45.004 mmHg
7 kPa	52.504 mmHg
8 kPa	60.005 mmHg
9 kPa	67.506 mmHg
10 kPa	75.006 mmHg
11 kPa	82.507 mmHg
12 kPa	90.007 mmHg
13 kPa	97.508 mmHg
14 kPa	105.009 mmHg
15 kPa	112.509 mmHg
16 kPa	120.01 mmHg
17 kPa	127.51 mmHg
18 kPa	135.011 mmHg
19 kPa	142.512 mmHg
20 kPa	150.012 mmHg
21 kPa	157.513 mmHg
22 kPa	165.014 mmHg
23 kPa	172.514 mmHg
24 kPa	180.015 mmHg
25 kPa	187.515 mmHg
26 kPa	195.016 mmHg
27 kPa	202.517 mmHg
28 kPa	210.017 mmHg
29 kPa	217.518 mmHg
30 kPa	225.018 mmHg
31 kPa	232.519 mmHg
32 kPa	240.02 mmHg
33 kPa	247.52 mmHg
34 kPa	255.021 mmHg
35 kPa	262.522 mmHg
36 kPa	270.022 mmHg
37 kPa	277.523 mmHg
38 kPa	285.023 mmHg
39 kPa	292.524 mmHg
40 kPa	300.025 mmHg
41 kPa	307.525 mmHg
42 kPa	315.026 mmHg
43 kPa	322.526 mmHg
44 kPa	330.027 mmHg
45 kPa	337.528 mmHg
46 kPa	345.028 mmHg
47 kPa	352.529 mmHg
48 kPa	360.03 mmHg
49 kPa	367.53 mmHg
50 kPa	375.031 mmHg
51 kPa	382.531 mmHg
52 kPa	390.032 mmHg
53 kPa	397.533 mmHg
54 kPa	405.033 mmHg
55 kPa	412.534 mmHg
56 kPa	420.034 mmHg
57 kPa	427.535 mmHg
58 kPa	435.036 mmHg
59 kPa	442.536 mmHg
60 kPa	450.037 mmHg
61 kPa	457.538 mmHg
62 kPa	465.038 mmHg
63 kPa	472.539 mmHg
64 kPa	480.039 mmHg
65 kPa	487.54 mmHg
66 kPa	495.041 mmHg
67 kPa	502.541 mmHg
68 kPa	510.042 mmHg
69 kPa	517.542 mmHg
70 kPa	525.043 mmHg
71 kPa	532.544 mmHg
72 kPa	540.044 mmHg
73 kPa	547.545 mmHg
74 kPa	555.046 mmHg
75 kPa	562.546 mmHg
76 kPa	570.047 mmHg
77 kPa	577.547 mmHg
78 kPa	585.048 mmHg
79 kPa	592.549 mmHg
80 kPa	600.049 mmHg
81 kPa	607.55 mmHg
82 kPa	615.05 mmHg
83 kPa	622.551 mmHg
84 kPa	630.052 mmHg
85 kPa	637.552 mmHg
86 kPa	645.053 mmHg
87 kPa	652.554 mmHg
88 kPa	660.054 mmHg
89 kPa	667.555 mmHg
90 kPa	675.055 mmHg
91 kPa	682.556 mmHg
92 kPa	690.057 mmHg
93 kPa	697.557 mmHg
94 kPa	705.058 mmHg
95 kPa	712.558 mmHg
96 kPa	720.059 mmHg
97 kPa	727.56 mmHg
98 kPa	735.06 mmHg
99 kPa	742.561 mmHg
100 kPa	750.062 mmHg

Common values

Millimeters of mercury	Kilopascals	Example
80 mmHg	10.67 kPa	Typical diastolic pressure
100 mmHg	13.33 kPa	100 mmHg
120 mmHg	16 kPa	Typical systolic pressure
140 mmHg	18.67 kPa	140 mmHg
160 mmHg	21.33 kPa	160 mmHg
760 mmHg	101.33 kPa	1 atmosphere

About millimeters of mercury and kilopascals

Millimeters of mercury (mmHg). Millimeters of mercury (mmHg) measure pressure by the height of a mercury column. Blood pressure is still recorded in mmHg; 760 mmHg is one standard atmosphere.

Kilopascals (kPa). The kilopascal is 1,000 pascals, the SI pressure unit. Tyre pressures are often printed in kPa outside the US.

Frequently asked questions

How many kilopascals in 1 millimeter of mercury?

One millimeter of mercury equals 0.133322 kilopascals. Looking at it the other way, one kilopascal is 7.50062 millimeters of mercury.

How do you convert millimeters of mercury to kilopascals?

Divide the number of millimeters of mercury by 7.500615758. For example, 120 mmHg ÷ 7.500615758 = 15.9987 kPa.

What is 140 millimeters of mercury in kilopascals?

140 mmHg is 18.6651 kPa.

How much is 160 millimeters of mercury in kilopascals?

160 millimeters of mercury equals 21.3316 kilopascals.

How do I convert kilopascals back to millimeters of mercury?

Multiply by 7.500615758, or press the ⇄ swap button above. For example, 18.6651 kPa × 7.500615758 = 140 mmHg.

How many mmHg are in one atmosphere?

Exactly 760 mmHg, which equals 101.325 kPa or 14.696 psi. This is also the definition of the torr: 1 atm = 760 torr.

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