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Torr to Bar Converter

Enter the value that you want to convert torr to bar or bar to torr.

1 torr = 0.0013332 bar

Formula: bar = torr value × 0.0013332

torr to bar

Torr
0.01333bar

10 torr = 0.01333 bar

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Converting Torr to Bar

What is Torr?

Torr (Torr) is a unit of pressure measurement. 1 torr is equal to 0.0013332 bar.

The Bar in Engineering

Bar (bar) is a unit of pressure measurement. 1 bar is equal to 750.0616827 torr.

Pressure Units Across Industries

Pressure measurements vary dramatically by industry. Meteorologists report in millibars or hectopascals, tire shops use PSI, scuba divers think in atmospheres or bar, vacuum engineers work in torr, and hydraulic systems specify in megapascals. A single industrial plant might encounter all these units across different equipment manuals, safety datasheets, and regulatory standards from different countries.

torr to bar metric conversion table

0.01 Torr=0.00001 bar
0.1 Torr=0.00013 bar
1 Torr=0.00133 bar
2 Torr=0.00267 bar
3 Torr=0.00400 bar
4 Torr=0.00533 bar
5 Torr=0.00667 bar
6 Torr=0.00800 bar
7 Torr=0.00933 bar
8 Torr=0.01067 bar
9 Torr=0.01200 bar
10 Torr=0.01333 bar
11 Torr=0.01467 bar
12 Torr=0.01600 bar
13 Torr=0.01733 bar
14 Torr=0.01867 bar
15 Torr=0.02000 bar
16 Torr=0.02133 bar
17 Torr=0.02266 bar
18 Torr=0.02400 bar
19 Torr=0.02533 bar
20 Torr=0.02666 bar
30 Torr=0.04000 bar
40 Torr=0.05333 bar
50 Torr=0.06666 bar
60 Torr=0.07999 bar
70 Torr=0.09333 bar
80 Torr=0.10666 bar
90 Torr=0.11999 bar
100 Torr=0.13332 bar
200 Torr=0.26664 bar
300 Torr=0.39997 bar
400 Torr=0.53329 bar
500 Torr=0.66661 bar
600 Torr=0.79993 bar
700 Torr=0.93326 bar
800 Torr=1.06658 bar
900 Torr=1.19990 bar
1000 Torr=1.33322 bar

How to Convert Torr to Bar?

We can convert torr to bar by using an example.

Example:

Convert 20 Torr to Bar?

We know 1 Torr = 0.0013332 bar; 1 Bar = 750.0616827 torr.

20 torr = ___bar

20 × 0.0013332 = 0.02666 bar (we know 1 torr = 0.0013332 bar)

Answer:

20 torr = 0.02666 bar

How to Convert Torr to Bar (Step-by-Step)

Converting torr to bar bridges vacuum science (torr) with industrial pressure gauging (bar). The conversion factor is 1 torr = 1/750.062 bar ≈ 0.001333 bar.

  1. Write down the pressure value in torr.
  2. Divide the torr value by 750.062 (or multiply by 0.001333).
  3. The result is the equivalent pressure in bar.
  4. For millibar: multiply torr by 1.333 (since 1 torr = 1.333 mbar).
💡 Tip: An easy approximation: 1 torr ≈ 1.33 mbar. So for vacuum work, multiply torr by 1.33 to get millibar directly. This is accurate to 0.03% and widely used in industrial vacuum practice.

Common Torr to Bar Conversions

Vacuum pressures converted from the torr scale to industrial bar/mbar values.

TorrBar
760 torr1.01325 bar
100 torr0.1333 bar
10 torr0.01333 bar
1 torr0.001333 bar
0.1 torr0.000133 bar
0.01 torr0.0000133 bar
0.001 torr1.33 × 10⁻⁶ bar

Solved Examples: Torr to Bar

Question 1: A vacuum furnace operates at 0.1 torr. Express in mbar for the process controller.

Solution:

Pressure in bar = Pressure in torr ÷ 750.062

= 0.1 ÷ 750.062

= 0.0001333 bar = 0.1333 mbar

Answer: 0.1 torr = 0.133 mbar — typical for vacuum heat treatment.

Question 2: A vacuum packaging machine pulls 5 torr. Convert to mbar.

Solution:

Pressure in bar = 5 ÷ 750.062 = 0.006666 bar

In mbar: 0.006666 × 1000 = 6.666 mbar

Answer: 5 torr = 6.67 mbar — suitable for MAP (modified atmosphere packaging).

Question 3: A process spec requires "better than 50 torr." Express the threshold in bar.

Solution:

Pressure in bar = 50 ÷ 750.062

= 0.06666 bar

Answer: 50 torr = 0.0667 bar = 66.7 mbar — the vacuum level must be below this.

Practice Questions: Torr to Bar

Try solving these on your own to test your understanding:

  1. Convert 200 torr to bar. (Answer: 0.2666 bar)
  2. A vacuum gauge reads 0.5 torr. Express in mbar. (Answer: 0.667 mbar)
  3. Convert 25 torr to bar. (Answer: 0.03333 bar)
  4. A system achieves 0.01 torr. What is this in mbar? (Answer: 0.01333 mbar)
  5. Convert 500 torr to bar. (Answer: 0.6666 bar)

Industrial Vacuum Equipment: Torr vs mbar Specifications

European vacuum equipment (Busch, Pfeiffer, Leybold) typically specifies performance in mbar, while US and older Asian equipment uses torr. A pump rated at "ultimate vacuum 0.01 mbar" achieves the same pressure as one rated "0.0075 torr" — knowing the 1.333 conversion factor connects these instantly. When comparing bids from different manufacturers, always convert to a single unit to make fair comparisons of pump-down times and ultimate pressures.

Vacuum Process Control: Setting Setpoints

Industrial vacuum processes (coating, degassing, drying) have pressure setpoints. A controller set to "hold at 1 torr" is maintaining 1.333 mbar. If the process recipe was developed using torr-calibrated gauges but the new controller reads mbar, multiply the torr setpoint by 1.333. An error here can mean under-vacuum (quality issues) or wasted pump energy. Always verify gauge units match recipe documentation before production runs.

Key Takeaways

  • Divide torr by 750.062 to get bar (or multiply by 0.001333).
  • Quick conversion to mbar: multiply torr by 1.333.
  • 760 torr = 1.01325 bar = 1 atm.
  • 1 torr = 1.333 mbar — this approximation is widely used in industry.
  • European vacuum equipment specs use mbar; US uses torr.
  • Always verify gauge units match process recipe units when converting.

Torr to Bar Conversion Formula

bar = torr × 0.0013332

1 torr = 0.0013332 bar

1 bar = 750.0616827 torr

Reverse: torr = bar × 750.0616827

Frequently Asked Questions

How many bar are in 1 torr?

There are 0.0013332 bar in 1 torr. To convert torr to bar, multiply the value by 0.0013332.

How do I convert torr to bar?

Multiply your torr value by 0.0013332 to get the equivalent in bar. For example, 5 torr = 5 × 0.0013332 = 0.00667 bar.

How do I convert bar to torr?

Multiply your bar value by 750.0616827 to get the equivalent in torr. Alternatively, divide by 0.0013332.

What is 10 torr in bar?

10 torr is equal to 0.01333 bar.

What is 100 torr in bar?

100 torr is equal to 0.13332 bar.