A millibar is 100 pascals.
Millibars to Torrs Converter — mbar to Torr
Convert Millibar (mbar) to Torr (Torr) using the exact conversion factor (1 millibar = 0.7500616827 torr). See the formula, worked examples, and conversion table.
Millibars to Torrs converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
A torr is 1/760 standard atmosphere.
Result = input x 100 / 133.3223684.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Millibars to Torrs
Millibar and Torr both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: A millibar is 100 pascals, and a torr is 1/760 standard atmosphere.
Formula
torrs = millibars × 0.750061682704
This factor comes from each unit's defined relationship to the category's base unit: 1 millibar equals 100 base units, and 1 torr equals 133.322368421 base units, so dividing one by the other gives the direct millibar-to-torr factor of 0.750061682704.
Simple example
1 mbar × 0.7500616827 = 0.7500616827 Torr
1 millibar = 0.7500616827 torrs.
Real-world example
100 mbar × 0.7500616827 = 75.00616827 Torr
100 millibars = 75.00616827 torrs.
Conversion table
| Millibar (mbar) | Torr (Torr) |
|---|---|
| 1 mbar | 0.7500616827 Torr |
| 10 mbar | 7.500616827 Torr |
| 50 mbar | 37.50308414 Torr |
| 100 mbar | 75.00616827 Torr |
| 500 mbar | 375.0308414 Torr |
| 1,000 mbar | 750.0616827 Torr |
Reverse conversion: Torr to Millibar
0.7500616827 Torr × 1.333223684 = 1 mbar
0.7500616827 torrs = 1 millibars.
millibars = torrs × 1.33322368421
For a page dedicated to this direction, see Torr to Millibar.
Understanding the Millibar (mbar)
A millibar is 100 pascals.
Understanding the Torr (Torr)
A torr is 1/760 standard atmosphere.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many torrs are in 1 millibar?
1 millibar equals 0.7500616827 torrs, using the exact defined conversion factor rather than an estimate.
How do I convert millibar to torr?
Multiply the millibar value by 0.7500616827. The converter above does this instantly to whatever precision you set.
How do I convert torr back to millibar?
Use the reverse factor: 1 torr equals 1.333223684 millibars. You can also use the swap control in the converter above to flip the direction instantly.
What is a millibar?
Millibar (mbar) is a unit of engineering.
What is a torr?
Torr (Torr) is a unit of engineering.
Is the millibar to torr conversion exact?
Yes. Both millibar and torr are defined by fixed standards rather than physical artifacts, so the factor of 0.7500616827 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.