Conventional millimetre of mercury to hectopascals converter
Convert conventional millimetre of mercury (mmHg) to hectopascals (hPa).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
mmHg
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PascalPa
KilopascalkPa
MegapascalMPa
Barbar
Millibarmbar
HectopascalhPa
Standard atmosphereatm
Pounds per square inchpsi
TorrTorr
Conventional millimetre of mercurymmHg
No units found. Try a name or symbol.
1.333223874
hPa
esc
PascalPa
KilopascalkPa
MegapascalMPa
Barbar
Millibarmbar
HectopascalhPa
Standard atmosphereatm
Pounds per square inchpsi
TorrTorr
Conventional millimetre of mercurymmHg
No units found. Try a name or symbol.
CONVERSION
1 mmHg ≈ 1.333223874 hPa
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAhPa = mmHg × 1.33322387415
FORMULA & EXAMPLES
How to convert Conventional millimetre of mercury to hectopascals
hPa = mmHg × 1.33322387415
Multiply the mmHg reading by 1.33322387415.
Worked examples
1 mmHg ≈ 1.333223874 hPa
1 × 1.33322387415 ≈ 1.333223874
760 mmHg ≈ 1013.250144 hPa
760 × 1.33322387415 ≈ 1013.250144
Frequently asked questions
Does mmHg to hPa change gauge pressure into absolute pressure?
No. Unit conversion preserves the original pressure reference. Converting a gauge reading to absolute pressure additionally requires the applicable atmospheric pressure.
Conventional millimetre of mercury to hectopascals table
Fixed reference · Conventional millimetre of mercury to Hectopascal
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Conventional millimetre of mercury (mmHg)
Hectopascal (hPa)
0
0
0.1
0.1333223874
0.5
0.6666119371
1
1.333223874
2
2.666447748
5
6.666119371
10
13.33223874
25
33.33059685
50
66.66119371
100
133.3223874
1000
1333.223874
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.