Convert attopascal to torr
Please provide values below to convert attopascal [aPa] to torr [Torr], or Convert torr to attopascal.
1 aPa = 7.5006e-21 Torr. To convert attopascal to torr, multiply the value by 7.5006e-21; to go the other way, divide by it (1 Torr = 1.3332e+20 aPa). Both units measure pressure and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 aPa = 7.5006e-21 Torr
- 1 Torr = 1.3332e+20 aPa
- 10 aPa = 7.5006e-20 Torr
- 100 aPa = 7.5006e-19 Torr
How to Convert Attopascal to Torr
1 aPa = 7.5006168507298e-21 Torr
Example: convert 15 aPa to Torr:
15 aPa = 15 × 7.5006168507298e-21 Torr = 1.12509252760947e-19 Torr
Attopascal to Torr Conversion Table
| attopascal | torr |
|---|---|
| 1 aPa | 7.5006e-21 Torr |
| 2 aPa | 1.5001e-20 Torr |
| 3 aPa | 2.2502e-20 Torr |
| 5 aPa | 3.7503e-20 Torr |
| 10 aPa | 7.5006e-20 Torr |
| 20 aPa | 1.5001e-19 Torr |
| 50 aPa | 3.7503e-19 Torr |
| 100 aPa | 7.5006e-19 Torr |
| 500 aPa | 3.7503e-18 Torr |
| 1000 aPa | 7.5006e-18 Torr |
Attopascal
The attopascal (aPa) is a unit of pressure equal to 10^-18 pascals, representing an extremely small pressure measurement.
History/Origin
The attopascal was introduced as part of the SI prefixes to denote very small quantities of pressure, but it is rarely used in practical applications due to its minuscule magnitude.
Current Use
The attopascal is primarily used in scientific research and theoretical contexts where extremely small pressure differences are relevant, although it remains largely a conceptual unit.
Torr
The torr is a unit of pressure defined as 1 millimeter of mercury (mmHg) at standard gravity and temperature, approximately equal to 133.322 pascals.
History/Origin
The torr was introduced by Evangelista Torricelli in 1644, based on his experiments with mercury barometers, as a unit to measure atmospheric pressure. It was historically used in meteorology and physics before the adoption of the pascal.
Current Use
Today, the torr is primarily used in fields like vacuum technology, physics, and medicine (e.g., blood pressure measurements), although it has largely been replaced by the pascal in most scientific contexts.
Frequently Asked Questions
What is 1 attopascal in torr?
1 attopascal (aPa) = 7.5006e-21 torr (Torr).
How do you convert attopascal to torr?
Multiply the attopascal value by 7.5006e-21. For example, 25 aPa × 7.5006e-21 = 1.8752e-19 Torr.
What is 10 attopascal in torr?
10 aPa = 7.5006e-20 Torr.
Which unit is larger, the attopascal or the torr?
The torr is the larger unit: 1 aPa equals only 7.5006e-21 Torr.