Torr to conventional millimetre of mercury converter
Convert torr to conventional millimetre of mercury (mmHg).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
Torr
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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.
0.9999998575
mmHg
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 Torr ≈ 0.9999998575 mmHg
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAmmHg = Torr × 0.999999857533699
FORMULA & EXAMPLES
How to convert Torr to conventional millimetre of mercury
mmHg = Torr × 0.999999857533699
Multiply the Torr reading by 0.999999857533699.
Worked examples
1 Torr ≈ 0.9999998575 mmHg
1 × 0.999999857533699 ≈ 0.9999998575
760 Torr ≈ 759.9998917 mmHg
760 × 0.999999857533699 ≈ 759.9998917
Frequently asked questions
Are conventional mmHg and Torr exactly equal?
No. Conventional mmHg is 133.322387415 Pa, while a Torr is exactly 101325/760 Pa. Their small difference comes from the definitions, not display rounding.
Torr to conventional millimetre of mercury table
Fixed reference · Torr to Conventional millimetre of mercury
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Torr (Torr)
Conventional millimetre of mercury (mmHg)
0
0
0.1
0.09999998575
0.5
0.4999999288
1
0.9999998575
2
1.999999715
5
4.999999288
10
9.999998575
25
24.99999644
50
49.99999288
100
99.99998575
1000
999.9998575
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.