How many bars are in 1 torr?

1 torr equals 0.0013332237 bars, using the exact defined conversion factor rather than an estimate.

How do I convert torr to bar?

Multiply the torr value by 0.001333223684. The converter above does this instantly to whatever precision you set.

How do I convert bar back to torr?

Use the reverse factor: 1 bar equals 750.0616827 torrs. You can also use the swap control in the converter above to flip the direction instantly.

Torr (Torr) is a unit of pressure.

Is the torr to bar conversion exact?

Yes. A bar is defined as exactly 100,000 pascals, close to (but distinct from) one standard atmosphere (101,325 Pa). That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.

Torrs to Bars Converter

Q: What is a bar?

Bar (bar) measures pressure. A bar is defined as exactly 100,000 pascals, close to (but distinct from) one standard atmosphere (101,325 Pa). It is classified as a Non-SI metric unit accepted for use with SI.

About Converting Torrs to Bars

Torr and Bar both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: A torr is 1/760 standard atmosphere, and a bar is exactly 100,000 pascals.

Formula

bars = torrs × 0.00133322368421

This factor comes from each unit's defined relationship to the category's base unit: 1 torr equals 133.322368421 base units, and 1 bar equals 100000 base units, so dividing one by the other gives the direct torr-to-bar factor of 0.00133322368421.

Simple example

1 Torr × 0.001333223684 = 0.0013332237 bar

1 torr = 0.0013332237 bars.

Real-world example

35 Torr × 0.001333223684 = 0.046662829 bar

35 torrs = 0.046662829 bars.

Conversion table

Torr (Torr)	Bar (bar)
1 Torr	0.0013332237 bar
5 Torr	0.0066661184 bar
10 Torr	0.0133322368 bar
25 Torr	0.0333305921 bar
50 Torr	0.0666611842 bar
100 Torr	0.1333223684 bar

Reverse conversion: Bar to Torr

0.0013332237 bar × 750.0616827 = 1.000000012 Torr

0.0013332237 bars = 1.000000012 torrs.

torrs = bars × 750.061682704

For a page dedicated to this direction, see Bar to Torr.

Understanding the Torr (Torr)

A torr is 1/760 standard atmosphere.

Understanding the Bar

Bar (bar) measures pressure. A bar is defined as exactly 100,000 pascals, close to (but distinct from) one standard atmosphere (101,325 Pa). It is classified as a Non-SI metric unit accepted for use with SI.

Where it's used: Widely used in Europe and most of the world for tire pressure, weather, and industrial pressure

Uses of the Bar today

Tire pressure specifications outside the US
Meteorology (weather maps commonly use millibars, hPa)
Industrial and hydraulic pressure ratings in metric-system countries

History of the Bar

The bar was proposed by Norwegian meteorologist Vilhelm Bjerknes around 1906 as a convenient round pressure unit close to atmospheric pressure, derived from the CGS unit system (one bar equals one million dynes per square centimeter).

Though not an SI unit, the bar remains in wide practical use, particularly in meteorology (as the millibar, now more often written as the equivalent hectopascal) and in tire and hydraulic pressure specifications across most of the world.

Historical origin. Bar was not the invention of a single named person; it developed through the process described above.

Bar — sources

BIPM SI Brochure — Non-SI units accepted for use with SI — Lists the bar among accepted non-SI pressure units.

Torrs to Bars Converter — Torr to bar

Pressure Converter