Edit either value. Decimals and scientific notation supported.
1
atm
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.
760
Torr
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 atm ≈ 760 Torr
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULATorr = atm × 760
FORMULA & EXAMPLES
How to convert Standard atmospheres to torr
Torr = atm × 760
Multiply the atm reading by 760.
Worked examples
1 atm ≈ 760 Torr
1 × 760 ≈ 760
2 atm ≈ 1520 Torr
2 × 760 ≈ 1520
Frequently asked questions
Does atm to Torr 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.
Standard atmospheres to torr table
Fixed reference · Standard atmosphere to Torr
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Standard atmosphere (atm)
Torr (Torr)
0
0
0.1
76
0.5
380
1
760
2
1520
5
3800
10
7600
25
19000
50
38000
100
76000
1000
760000
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.