Millibar to Torr Converter
mbar
Torr
Quick Conversions
Conversion Formula
The conversion between millibar and Torr uses the following formulas:
Torr = mbar × 0.750062
mbar = Torr × 1.33322
Both millibar (mbar) and Torr are units of pressure commonly used in meteorology, vacuum technology, and scientific applications. The millibar equals 100 pascals, while the Torr represents 1/760 of standard atmospheric pressure.
Conversion Examples
Example 1: Convert 50 mbar to Torr
Step 1: Write down the formula: Torr = mbar × 0.750062
Step 2: Substitute the value: Torr = 50 × 0.750062
Step 3: Calculate: Torr = 37.5031
Result: 50 mbar = 37.5031 Torr
Example 2: Convert 1013.25 mbar to Torr
Step 1: Write down the formula: Torr = mbar × 0.750062
Step 2: Substitute the value: Torr = 1013.25 × 0.750062
Step 3: Calculate: Torr = 760.00
Result: 1013.25 mbar = 760 Torr (Standard Atmosphere)
Example 3: Convert 250 mbar to Torr
Step 1: Write down the formula: Torr = mbar × 0.750062
Step 2: Substitute the value: Torr = 250 × 0.750062
Step 3: Calculate: Torr = 187.5155
Result: 250 mbar = 187.5155 Torr
Conversion Table
| Millibar (mbar) | Torr |
|---|---|
| 0.01 mbar | 0.0075 Torr |
| 0.1 mbar | 0.075 Torr |
| 0.5 mbar | 0.3750 Torr |
| 1 mbar | 0.7501 Torr |
| 2 mbar | 1.5001 Torr |
| 5 mbar | 3.7503 Torr |
| 10 mbar | 7.5006 Torr |
| 20 mbar | 15.0012 Torr |
| 25 mbar | 18.7516 Torr |
| 50 mbar | 37.5031 Torr |
| 75 mbar | 56.2546 Torr |
| 100 mbar | 75.0062 Torr |
| 200 mbar | 150.0123 Torr |
| 250 mbar | 187.5155 Torr |
| 500 mbar | 375.0308 Torr |
| 750 mbar | 562.5463 Torr |
| 1000 mbar | 750.0617 Torr |
| 1013.25 mbar | 760.0000 Torr |
| 1500 mbar | 1125.0925 Torr |
| 2000 mbar | 1500.1234 Torr |
Popular Conversions
1 mbar = 0.7501 Torr
10 mbar = 7.5006 Torr
25 mbar = 18.7516 Torr
50 mbar = 37.5031 Torr
100 mbar = 75.0062 Torr
500 mbar = 375.0308 Torr
760 Torr = 1013.25 mbar
1000 mbar = 750.0617 Torr
Related Pressure Conversions
Millibar and Torr can be converted to various other pressure units:
From Millibar (mbar)
mbar to Pascal (Pa)
1 mbar = 100 Pa
1 mbar = 100 Pa
mbar to Hectopascal (hPa)
1 mbar = 1 hPa
1 mbar = 1 hPa
mbar to Bar
1 mbar = 0.001 bar
1 mbar = 0.001 bar
mbar to Atmosphere (atm)
1 mbar = 0.000987 atm
1 mbar = 0.000987 atm
mbar to PSI
1 mbar = 0.0145 psi
1 mbar = 0.0145 psi
mbar to mmHg
1 mbar = 0.7501 mmHg
1 mbar = 0.7501 mmHg
From Torr
Torr to Pascal (Pa)
1 Torr = 133.322 Pa
1 Torr = 133.322 Pa
Torr to Atmosphere (atm)
1 Torr = 0.001316 atm
1 Torr = 0.001316 atm
Torr to PSI
1 Torr = 0.0193 psi
1 Torr = 0.0193 psi
Torr to Bar
1 Torr = 0.001333 bar
1 Torr = 0.001333 bar
Torr to mmHg
1 Torr = 1 mmHg
1 Torr = 1 mmHg
Torr to kPa
1 Torr = 0.133 kPa
1 Torr = 0.133 kPa
Frequently Asked Questions
What is the relationship between mbar and Torr?
One millibar equals approximately 0.750062 Torr. Both units measure pressure but originate from different systems. The millibar is a metric unit equal to 100 pascals, while the Torr is based on the pressure exerted by 1 mm of mercury and equals 1/760 of standard atmospheric pressure.
How do you convert mbar to Torr?
To convert millibar to Torr, multiply the millibar value by 0.750062. For example, 100 mbar × 0.750062 = 75.0062 Torr. Conversely, to convert Torr to mbar, multiply the Torr value by 1.33322.
What is a millibar?
A millibar (mbar) is a unit of pressure equal to one-thousandth of a bar or 100 pascals. It is widely used in meteorology to report atmospheric pressure and in engineering applications. One millibar is also equivalent to one hectopascal (hPa).
What is a Torr?
Torr is a unit of pressure named after Evangelista Torricelli, the inventor of the barometer. One Torr equals the pressure exerted by a 1 mm column of mercury at 0°C and represents 1/760 of standard atmospheric pressure. It is commonly used in vacuum applications and scientific measurements.
Why is 1013.25 mbar equal to 760 Torr?
This relationship represents standard atmospheric pressure at sea level. Standard atmosphere is defined as 1013.25 mbar (or 101.325 kPa), which corresponds exactly to 760 Torr. This equivalence is fundamental to pressure measurements and serves as a reference point in many scientific applications.
Is mbar the same as hPa?
Yes, millibar (mbar) and hectopascal (hPa) are identical units. 1 mbar = 1 hPa = 100 Pa. Many meteorological services have transitioned to using hectopascal as the standard unit for atmospheric pressure reporting, though millibar remains widely recognized.
When should I use mbar vs Torr?
Millibar is commonly used in meteorology for weather forecasting and atmospheric pressure measurements. Torr is preferred in vacuum technology, laboratory settings, and scientific research involving low pressures. The choice often depends on industry standards and regional conventions.
How accurate is the 0.750062 conversion factor?
The conversion factor 0.750062 is highly accurate and derived from the precise definitions of both units based on the pascal. For most practical applications, this precision is more than sufficient. In scientific contexts requiring extreme precision, additional significant figures may be used.
Can I convert negative pressure values?
Yes, the conversion formula works for both positive and negative values. Negative pressure values (relative to atmospheric pressure) are common in vacuum applications. Simply apply the same multiplication factor: negative mbar values will yield negative Torr values.
Are mbar and Torr used internationally?
Both units are recognized internationally, though their usage varies by region and field. Millibar (or hectopascal) is the standard in most weather services worldwide. Torr remains popular in vacuum technology and scientific research globally, particularly in North America and Europe.