The torr is a unit of pressure named after the Italian physicist Evangelista Torricelli, who invented the barometer in the 17th century. It is defined as 1/760th of an atmosphere, approximating the pressure exerted by a one-millimeter column of mercury at 0 degrees Celsius. What makes the torr particularly interesting is its practical use in fields like vacuum technology and weather forecasting, where precise measurements of atmospheric pressure are crucial.

The legacy of Torricelli’s work is integral to meteorology and physics, as it opened paths for understanding atmospheric pressure. Beyond scientific circles, the torr is a reminder of human ingenuity in unraveling atmospheric mysteries and continues to play a vital role in today’s scientific advancements.

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The Pascal, named after the French mathematician and physicist Blaise Pascal, is the SI unit of pressure. It is equivalent to one newton per square meter, symbolized as Pa. Despite its relatively recent introduction in 1971, the Pascal honors the pioneering work of Pascal in fluid mechanics and pressure, such as Pascal’s Law, which explains how pressure applied to a confined fluid is transmitted undiminished in all directions. Interestingly, a single Pascal is a tiny unit of pressure, roughly equal to the pressure exerted by a dollar bill resting flat on a table. This illustrates why everyday atmospheric pressure is typically measured in kilopascals (kPa), as one standard atmosphere is about 101.3 kPa.

Torr

Pascals

0 torr

0 Pa

10 torr

1333.22368 Pa

20 torr

2666.44737 Pa

30 torr

3999.67105 Pa

40 torr

5332.89474 Pa

50 torr

6666.11842 Pa

60 torr

7999.34211 Pa

70 torr

9332.56579 Pa

80 torr

10665.78947 Pa

90 torr

11999.01316 Pa

100 torr

13332.23684 Pa

110 torr

14665.46053 Pa

120 torr

15998.68421 Pa

130 torr

17331.90789 Pa

140 torr

18665.13158 Pa

150 torr

19998.35526 Pa

160 torr

21331.57895 Pa

170 torr

22664.80263 Pa

180 torr

23998.02632 Pa

190 torr

25331.25 Pa

200 torr

26664.47368 Pa

210 torr

27997.69737 Pa

220 torr

29330.92105 Pa

230 torr

30664.14474 Pa

240 torr

31997.36842 Pa

250 torr

33330.59211 Pa

260 torr

34663.81579 Pa

270 torr

35997.03947 Pa

280 torr

37330.26316 Pa

290 torr

38663.48684 Pa

300 torr

39996.71053 Pa

310 torr

41329.93421 Pa

320 torr

42663.15789 Pa

330 torr

43996.38158 Pa

340 torr

45329.60526 Pa

350 torr

46662.82895 Pa

360 torr

47996.05263 Pa

370 torr

49329.27632 Pa

380 torr

50662.5 Pa

390 torr

51995.72368 Pa

400 torr

53328.94737 Pa

410 torr

54662.17105 Pa

420 torr

55995.39474 Pa

430 torr

57328.61842 Pa

440 torr

58661.84211 Pa

450 torr

59995.06579 Pa

460 torr

61328.28947 Pa

470 torr

62661.51316 Pa

480 torr

63994.73684 Pa

490 torr

65327.96053 Pa

500 torr

66661.18421 Pa

510 torr

67994.40789 Pa

520 torr

69327.63158 Pa

530 torr

70660.85526 Pa

540 torr

71994.07895 Pa

550 torr

73327.30263 Pa

560 torr

74660.52632 Pa

570 torr

75993.75 Pa

580 torr

77326.97368 Pa

590 torr

78660.19737 Pa

600 torr

79993.42105 Pa

610 torr

81326.64474 Pa

620 torr

82659.86842 Pa

630 torr

83993.09211 Pa

640 torr

85326.31579 Pa

650 torr

86659.53947 Pa

660 torr

87992.76316 Pa

670 torr

89325.98684 Pa

680 torr

90659.21053 Pa

690 torr

91992.43421 Pa

700 torr

93325.65789 Pa

710 torr

94658.88158 Pa

720 torr

95992.10526 Pa

730 torr

97325.32895 Pa

740 torr

98658.55263 Pa

750 torr

99991.77632 Pa

760 torr

101325 Pa

770 torr

102658.22368 Pa

780 torr

103991.44737 Pa

790 torr

105324.67105 Pa

800 torr

106657.89474 Pa

810 torr

107991.11842 Pa

820 torr

109324.34211 Pa

830 torr

110657.56579 Pa

840 torr

111990.78947 Pa

850 torr

113324.01316 Pa

860 torr

114657.23684 Pa

870 torr

115990.46053 Pa

880 torr

117323.68421 Pa

890 torr

118656.90789 Pa

900 torr

119990.13158 Pa

910 torr

121323.35526 Pa

920 torr

122656.57895 Pa

930 torr

123989.80263 Pa

940 torr

125323.02632 Pa

950 torr

126656.25 Pa

960 torr

127989.47368 Pa

970 torr

129322.69737 Pa

980 torr

130655.92105 Pa

990 torr

131989.14474 Pa

1000 torr

133322.36842 Pa

Conversion

Torr to Kilopascals

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Torr to Megapascals

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Torr to Hectopascals

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Torr to Millibar

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Torr to Bar

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Torr to Meters of water @ 4°C

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Torr to Millimeters of mercury

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Torr to Pounds per square inch

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Torr to Kilopound per square inch

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Torr to Inches of mercury

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Torr to Pascals Conversion

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> Torr to Pascals Conversion Table

> Other Conversions

:: Pressure Units

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> Torr to Pascals Conversion Table

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:: Pressure Units

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