Attoliter is 1e-18 liter units.
Attoliters to Pints Converter — aL to pt
Convert Attoliter (aL) to Pint (pt) using the exact conversion factor (1 attoliter = 2.113376e-18 pint). See the formula, worked examples, conversion table, history, and common uses.
Attoliters to Pints converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A US liquid pint is one eighth of a US gallon.
Result = input x 1e-21 / 0.000473176473.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Attoliters to Pints
Attoliter and Pint appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: Attoliter is 1e-18 liter units, and a US liquid pint is one eighth of a US gallon.
Formula
pints = attoliters × 2.113376e-18
This factor comes from each unit's defined relationship to the category's base unit: 1 attoliter equals 1e-21 base units, and 1 pint equals 0.000473176473 base units, so dividing one by the other gives the direct attoliter-to-pint factor of 2.113376e-18.
Simple example
1 aL × 2.113376e-18 = 2.113376e-18 pt
1 attoliter = 2.113376e-18 pints.
Real-world example
10 aL × 2.113376e-18 = 2.113376e-17 pt
10 attoliters = 2.113376e-17 pints.
Conversion table
| Attoliter (aL) | Pint (pt) |
|---|---|
| 1 aL | 2.113376e-18 pt |
| 5 aL | 1.056688e-17 pt |
| 10 aL | 2.113376e-17 pt |
| 25 aL | 5.283441e-17 pt |
| 50 aL | 1.056688e-16 pt |
| 100 aL | 2.113376e-16 pt |
Reverse conversion: Pint to Attoliter
2.113376e-18 pt × 4.731765e+17 = 0.9999998018 aL
2.113376e-18 pints = 0.9999998018 attoliters.
attoliters = pints × 4.731765e+17
For a page dedicated to this direction, see Pint to Attoliter.
Understanding the Attoliter (aL)
Attoliter is 1e-18 liter units.
Understanding the Pint
Pint (pt) measures volume. The US liquid pint is one-eighth of a US gallon: exactly 0.473176473 liters. It is classified as a US customary unit.
Where it's used: United States (beer serving, cooking, dairy)
Uses of the Pint today
- US beer and beverage serving sizes
- US recipe measurement
- US dairy packaging (pint containers)
History of the Pint
The pint follows the same English wine-gallon lineage as the US gallon and quart, retained by the US after Britain's 1824 switch to a different imperial gallon standard.
Historical origin. Pint was not the invention of a single named person; it developed through the process described above.
Pint — sources
- NIST Handbook 44, Appendix C — General tables of units including the US pint definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pints are in 1 attoliter?
1 attoliter equals 2.113376e-18 pints, using the exact defined conversion factor rather than an estimate.
How do I convert attoliter to pint?
Multiply the attoliter value by 2.113376e-18. The converter above does this instantly to whatever precision you set.
How do I convert pint back to attoliter?
Use the reverse factor: 1 pint equals 4.731765e+17 attoliters. You can also use the swap control in the converter above to flip the direction instantly.
What is a attoliter?
Attoliter (aL) is a unit of volume.
What is a pint?
Pint (pt) measures volume. The US liquid pint is one-eighth of a US gallon: exactly 0.473176473 liters. It is classified as a US customary unit.
Is the attoliter to pint conversion exact?
Yes. The US liquid pint is one-eighth of a US gallon: exactly 0.473176473 liters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.