Torr to Attopascal
Convert Torr to Attopascal instantly. Free online pressure unit converter with exact formula, conversion table and FAQ.
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Formula
attopascal = torr × 1.333224e+20
torr = attopascal × 7.500617e-21
Conversion table
| 1 Torr | 1.333224e+20 aPa |
| 5 Torr | 6.666118e+20 aPa |
| 10 Torr | 1.333224e+21 aPa |
| 20 Torr | 2.666447e+21 aPa |
| 50 Torr | 6.666118e+21 aPa |
| 100 Torr | 1.333224e+22 aPa |
| 500 Torr | 6.666118e+22 aPa |
| 1000 Torr | 1.333224e+23 aPa |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the torr (Torr). A torr is 1/760 standard atmosphere.
What is the destination unit in this conversion?
The destination unit is the attopascal (aPa). Attopascal is 1e-18 pascal units.
How do I convert torr to attopascal?
Multiply the torr value by 1.333224e+20. For example, 10 Torr × 1.333224e+20 = 1.333224e+21 aPa.
Is the torr to attopascal conversion exact?
Yes. Both units are defined as fixed multiples of the pascal, the SI-derived unit of pressure, so the conversion factor follows directly from those exact definitions rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in torr needs to be compared with, or reported in, attopascal, such as in engineering specifications, weather readings, tire pressure, or industrial and scientific work.
Can I convert attopascal back to torr?
Yes. Multiply the attopascal value by 7.500617e-21 to get torr.
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About this conversion
This page converts torr (Torr) to attopascal (aPa) within the pressure converter.
A torr is 1/760 standard atmosphere. Attopascal is 1e-18 pascal units.
The formula is attopascal = torr × 1.333224e+20, based on each unit's fixed relationship to the pascal, the pressure converter's base unit.
The conversion is exact, since both units are tied to the pascal by a fixed numerical ratio rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common torr values already converted to attopascal.