Pascal to Torr Converter
Enter the value that you want to convert pascal (Pa) to torr or torr to pascal.
1 pascal = 0.0075006 torr
Formula: torr = pascal value × 0.0075006
pascal to torr
10 pascal = 0.07501 torr
Popular Pressure Converters:
Pascal vs Torr
About the Pascal
Pascal (Pa) is a unit of pressure measurement. 1 pascal is equal to 0.0075006 torr.
What is Torr?
Torr (Torr) is a unit of pressure measurement. 1 torr is equal to 133.3223684 pascal.
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.
pascal to torr metric conversion table
| 0.01 Pa | = | 0.00008 Torr |
| 0.1 Pa | = | 0.00075 Torr |
| 1 Pa | = | 0.00750 Torr |
| 2 Pa | = | 0.01500 Torr |
| 3 Pa | = | 0.02250 Torr |
| 4 Pa | = | 0.03000 Torr |
| 5 Pa | = | 0.03750 Torr |
| 6 Pa | = | 0.04500 Torr |
| 7 Pa | = | 0.05250 Torr |
| 8 Pa | = | 0.06000 Torr |
| 9 Pa | = | 0.06751 Torr |
| 10 Pa | = | 0.07501 Torr |
| 11 Pa | = | 0.08251 Torr |
| 12 Pa | = | 0.09001 Torr |
| 13 Pa | = | 0.09751 Torr |
| 14 Pa | = | 0.10501 Torr |
| 15 Pa | = | 0.11251 Torr |
| 16 Pa | = | 0.12001 Torr |
| 17 Pa | = | 0.12751 Torr |
| 18 Pa | = | 0.13501 Torr |
| 19 Pa | = | 0.14251 Torr |
| 20 Pa | = | 0.15001 Torr |
| 30 Pa | = | 0.22502 Torr |
| 40 Pa | = | 0.30002 Torr |
| 50 Pa | = | 0.37503 Torr |
| 60 Pa | = | 0.45004 Torr |
| 70 Pa | = | 0.52504 Torr |
| 80 Pa | = | 0.60005 Torr |
| 90 Pa | = | 0.67506 Torr |
| 100 Pa | = | 0.75006 Torr |
| 200 Pa | = | 1.50012 Torr |
| 300 Pa | = | 2.25019 Torr |
| 400 Pa | = | 3.00025 Torr |
| 500 Pa | = | 3.75031 Torr |
| 600 Pa | = | 4.50037 Torr |
| 700 Pa | = | 5.25043 Torr |
| 800 Pa | = | 6.00049 Torr |
| 900 Pa | = | 6.75056 Torr |
| 1000 Pa | = | 7.50062 Torr |
How to Convert Pascal to Torr?
We can convert pascal to torr by using an example.
Example:
Convert 20 Pascal to Torr?
We know 1 Pascal = 0.0075006 torr; 1 Torr = 133.3223684 pascal.
20 pascal = ___Torr
20 × 0.0075006 = 0.15001 Torr (we know 1 pascal = 0.0075006 torr)
Answer:
20 pascal = 0.15001 torr
How to Convert Pascal to Torr (Step-by-Step)
Converting pascals to torr is essential in vacuum technology, thin-film deposition, and laboratory sciences where vacuum levels are specified in torr (equivalent to mmHg). The conversion factor is 1 Pa = 0.00750062 torr.
- Write down the pressure value in pascals (Pa).
- Multiply the pascal value by 0.00750062.
- The result is the equivalent pressure in torr.
- For quick estimation, divide pascals by 133.3 (since 1 torr = 133.322 Pa).
Common Pascal to Torr Conversions
Reference table for vacuum science applications, coating systems, and laboratory equipment specifications.
| Pascal | Torr |
|---|---|
| 0.001 Pa | 7.5 × 10⁻⁶ torr |
| 0.01 Pa | 7.5 × 10⁻⁵ torr |
| 0.1 Pa | 7.5 × 10⁻⁴ torr |
| 1 Pa | 0.0075 torr |
| 10 Pa | 0.075 torr |
| 100 Pa | 0.75 torr |
| 1000 Pa | 7.50 torr |
| 101,325 Pa | 760 torr |
Solved Examples: Pascal to Torr
Question 1: A turbomolecular pump achieves an ultimate pressure of 0.005 Pa. What is this in torr?
Solution:
Pressure in torr = Pressure in Pa × 0.00750062
= 0.005 × 0.00750062
= 3.75 × 10⁻⁵ torr
Answer: 0.005 Pa = 3.75 × 10⁻⁵ torr — well within the high vacuum range for thin-film deposition.
Question 2: A vacuum oven operates at 50 Pa. Express this in torr for the operator manual.
Solution:
Pressure in torr = 50 × 0.00750062
= 0.375 torr
Answer: 50 Pa = 0.375 torr — sufficient for degassing polymers and drying heat-sensitive samples.
Question 3: A leak rate spec is given as 1 Pa/second. Convert the base pressure unit to torr.
Solution:
Pressure in torr = 1 × 0.00750062
= 0.0075 torr
Answer: 1 Pa = 0.0075 torr, so a 1 Pa/s leak rate = 0.0075 torr/s — too high for most vacuum processes.
Question 4: An ion beam etching system requires a base pressure below 0.02 Pa. Express the threshold in torr.
Solution:
Pressure in torr = 0.02 × 0.00750062
= 1.5 × 10⁻⁴ torr
Answer: 0.02 Pa = 1.5 × 10⁻⁴ torr — achievable with a turbomolecular pump.
Practice Questions: Pascal to Torr
Try solving these on your own to test your understanding:
- Convert 200 Pa to torr. (Answer: 1.50 torr)
- A freeze dryer operates at 10 Pa. Express in torr. (Answer: 0.075 torr)
- Convert 0.001 Pa to torr. (Answer: 7.5 × 10⁻⁶ torr)
- A sputtering chamber base pressure is 0.5 Pa. What is this in torr? (Answer: 0.00375 torr)
- Convert 5000 Pa to torr. (Answer: 37.50 torr)
Vacuum Ranges: Pascal vs Torr Classification
Vacuum science classifies pressure ranges differently by community. In SI: rough vacuum (10⁵-10² Pa), medium vacuum (10²-10⁻¹ Pa), high vacuum (10⁻¹-10⁻⁵ Pa), ultra-high vacuum (<10⁻⁵ Pa). In traditional units: rough (760-1 torr), medium (1-10⁻³ torr), high (10⁻³-10⁻⁹ torr), UHV (<10⁻⁹ torr). Semiconductor fabs primarily use torr while European physics labs prefer pascals. Converting between them is essential when referencing literature from different communities.
Thin-Film Deposition and Vacuum Levels
Different coating processes require specific vacuum levels: thermal evaporation needs 0.001-0.01 Pa (10⁻⁵-10⁻⁴ torr) base pressure, sputtering operates at 0.1-1 Pa (10⁻³-10⁻² torr) working pressure with argon, and chemical vapor deposition (CVD) runs at 10-1000 Pa (0.1-7.5 torr). The base pressure determines film purity — impurity incorporation scales with residual gas pressure. Converting between Pa and torr helps interpret specifications from different equipment manufacturers.
Blood Pressure and the mmHg-Torr-Pascal Connection
Medical blood pressure (e.g., 120/80 mmHg) uses millimeters of mercury — a unit essentially identical to torr (the difference is negligible at <0.000015%). In SI, 120 mmHg = 15,999 Pa ≈ 16 kPa. While most countries still report blood pressure in mmHg/torr for clinical familiarity, some European medical literature uses kPa. A "normal" blood pressure of 120/80 mmHg = 16.0/10.7 kPa. Understanding this conversion helps interpret international medical research.
Key Takeaways
- Multiply pascals by 0.00750062 to get torr (or divide by 133.322).
- 1 atm = 101,325 Pa = 760 torr — the defining relationship.
- Lower numbers = better vacuum in both Pa and torr.
- Semiconductor processes typically use torr; physics research uses Pa.
- Thin-film deposition base pressure: 0.001-0.01 Pa (10⁻⁵-10⁻⁴ torr).
- 1 torr ≈ 1 mmHg — making torr directly relatable to blood pressure measurements.
Pascal to Torr Conversion Formula
torr = pascal × 0.0075006
1 pascal = 0.0075006 torr
1 torr = 133.3223684 pascal
Reverse: pascal = torr × 133.3223684
Frequently Asked Questions
How many torr are in 1 pascal?
There are 0.0075006 torr in 1 pascal. To convert pascal to torr, multiply the value by 0.0075006.
How do I convert pascal to torr?
Multiply your pascal value by 0.0075006 to get the equivalent in torr. For example, 5 pascal = 5 × 0.0075006 = 0.03750 torr.
How do I convert torr to pascal?
Multiply your torr value by 133.3223684 to get the equivalent in pascal. Alternatively, divide by 0.0075006.
What is 10 pascal in torr?
10 pascal is equal to 0.07501 torr.
What is 100 pascal in torr?
100 pascal is equal to 0.75006 torr.