Bar to Torr Converter Online

Bar to torr pressure converter

Pressure · bar ↔ torr

Convert bar to torr and torr to bar with instant results, precise formulas, step-by-step examples, and popular pressure conversion values for lab, HVAC, and vacuum applications.

Instant bar ⇄ torr conversion

Live result
bar → torr
Direction:
Popular bar values:
0 bar = 0 torr
1 bar ≈ 750.06 torr · 1 torr ≈ 0.001333 bar
Bar input (high precision)
bar
Uses conversion factor based on 1 bar = 100 000 Pa.
Torr input (high precision)
torr
1 torr is defined from 1 mmHg at standard gravity.

What bar and torr mean

Short overview of both units, including definition, typical usage, and relation to pascal and atmosphere.

Unit: bar

Bar: metric pressure close to atmosphere

The bar is defined as exactly 100 000 pascals and is slightly lower than the standard atmosphere of about 101 325 pascals. [web:29] In everyday use, bar often appears in weather reports, compressed air systems, and industrial hydraulics where values are typically a few bar above atmospheric pressure. [web:29]

Unit: torr

Torr: vacuum and low pressure unit

The torr is named after Evangelista Torricelli and is defined so that 760 torr is exactly equal to one atmosphere, which gives 1 torr ≈ 133.322 pascals. [web:29][web:24] It is widely used in vacuum technology, thin-film deposition, semiconductor manufacturing, and laboratory vacuum lines where values often range from fractions of a torr down to microtorr. [web:22][web:28]

For sensitive laboratory and medical equipment, always follow manufacturer specifications for the reference pressure scale and unit (for example, bar, kPa, mmHg, or torr) and consult qualified professionals when pressure readings affect diagnosis or therapy. [web:29]

Popular bar to torr conversion table

Quick lookup values around typical operating points in vacuum engineering, refrigeration, and industrial pressure control.

aption>Selected bar to torr and torr to bar values
Bar Torr (approx.) Torr Bar (approx.)
0.01 bar 7.50 torr 1 torr 0.00133 bar
0.05 bar 37.50 torr 10 torr 0.01333 bar
0.1 bar 75.01 torr 50 torr 0.06666 bar
0.2 bar 150.01 torr 100 torr 0.13332 bar
0.5 bar 375.03 torr 300 torr 0.39996 bar
1 bar 750.06 torr 500 torr 0.66661 bar
2 bar 1500.12 torr 760 torr 1.01325 bar
3 bar 2250.19 torr 1000 torr 1.33321 bar
5 bar 3750.31 torr 1500 torr 1.99982 bar
10 bar 7500.62 torr 3000 torr 3.99965 bar

The approximate values above are based on 1 bar ≈ 750.06 torr and 1 torr ≈ 0.001333 bar, which are widely used in engineering tables and online conversion services. [web:20][web:24][web:21]

Where bar to torr conversion is used

Typical situations where engineers, technicians, and researchers need bar to torr conversion and consistent pressure units.

Vacuum and lab

Vacuum pumps and laboratory setups

Many vacuum gauges and legacy devices report pressure in torr or millitorr, while modern controllers may use bar, mbar, or pascal. [web:22][web:28] Accurate bar to torr conversion helps compare specifications, adapt procedures between laboratories, and match setpoints across different instruments. [web:22]

Industry

Process, refrigeration, and HVAC

Industrial process diagrams often give pressure in bar or kilopascal, whereas vacuum drying, leak testing, and charging lines can be specified in torr or millimetres of mercury. [web:22][web:29] Converting bar to torr clarifies how deep a vacuum is compared with atmospheric pressure and supports consistent safety margins. [web:24]

Across regions, some engineers prefer bar and kilopascal for alignment with SI, whereas others keep torr and millimetres of mercury because of historical practice around mercury manometers and vacuum systems. [web:24][web:29]

Bar to torr FAQ

Short answers to frequent questions about bar to torr and related pressure units.

Is bar an SI unit?
The bar is accepted for use with SI but is not an SI base unit, since the pascal (Pa) is the standard pressure unit in the International System of Units. [web:29]
How accurate is 1 bar = 750.06 torr?
When 1 bar is taken as 100 000 Pa and 1 torr as approximately 133.322 Pa, their ratio gives about 750.06 torr per bar, which is accurate enough for most engineering and laboratory calculations. [web:24][web:20]
How is torr related to mmHg?
The torr was historically defined from a millimetre of mercury at standard gravity, and in many practical tables 1 torr is treated as numerically equal to 1 mmHg even though the exact definitions differ slightly. [web:24][web:29]
Why convert between bar and torr in vacuum work?
Many vacuum specifications, leak rates, and pump datasheets use torr, while control systems, sensors, and simulation software often use bar or pascal, so converting between bar and torr keeps targets consistent across components. [web:22][web:28]
Is bar to torr conversion relevant for medical devices?
Some medical pressure monitoring devices use mmHg or torr-derived scales, while regulators or gas cylinders may use bar, so bar to torr conversion can appear in calibration and verification workflows. [web:24][web:29]
Which unit is better for everyday work?
For general engineering and weather-related work, bar or kilopascal aligns more closely with SI, while torr remains popular in vacuum technology, so the best choice depends on local practice and instrumentation. [web:24][web:29]
Category tag: Pressure
References
  1. Bars to Torr Converter, Inch Calculator, accessed 2025. Available from: https://www.inchcalculator.com/convert/bar-to-torr/.
  2. Bar to Torr Conversion Table, SensorsONE, accessed 2025. Available from: https://www.sensorsone.com/bar-to-torr-conversion-table/.
  3. Bar (unit), Wikipedia, accessed 2025. Available from: https://en.wikipedia.org/wiki/Bar_(unit).
  4. Bar to Torr Pressure Unit Conversion Calculator, Automation Forum, accessed 2025. Available from: https://automationforum.co/bar-to-torr-pressure-unit-conversion-calculator/.
  5. Bars to Torrs Conversion, Units Converters, accessed 2025. Available from: https://www.unitsconverters.com/en/Bar-To-Torr/Unittounit-3329-3368.
  6. Bars to Torr Converter, XConvert, accessed 2025. Available from: https://www.xconvert.com/unit-converter/bar-to-torr.
  7. Torr to Bars Converter, Inch Calculator, accessed 2025. Available from: https://www.inchcalculator.com/convert/torr-to-bar/.
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