Attoliter is 1e-18 liter units.
Attoliters to Zettaliters Converter — aL to ZL
Convert Attoliter (aL) to Zettaliter (ZL) using the exact conversion factor (1 attoliter = 1e-39 zettaliter). See the formula, worked examples, and conversion table.
Attoliters to Zettaliters 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.
Zettaliter is 1e+21 liter units.
Result = input x 1e-21 / 1e+18.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Attoliters to Zettaliters
Attoliter and Zettaliter 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 zettaliter is 1e+21 liter units.
Formula
zettaliters = attoliters × 1e-39
This factor comes from each unit's defined relationship to the category's base unit: 1 attoliter equals 1e-21 base units, and 1 zettaliter equals 1e+18 base units, so dividing one by the other gives the direct attoliter-to-zettaliter factor of 1e-39.
Simple example
1 aL × 1e-39 = 1e-39 ZL
1 attoliter = 1e-39 zettaliters.
Real-world example
10 aL × 1e-39 = 1e-38 ZL
10 attoliters = 1e-38 zettaliters.
Conversion table
| Attoliter (aL) | Zettaliter (ZL) |
|---|---|
| 1 aL | 1e-39 ZL |
| 5 aL | 5e-39 ZL |
| 10 aL | 1e-38 ZL |
| 25 aL | 2.5e-38 ZL |
| 50 aL | 5e-38 ZL |
| 100 aL | 1e-37 ZL |
Reverse conversion: Zettaliter to Attoliter
1e-39 ZL × 1e+39 = 1 aL
1e-39 zettaliters = 1 attoliters.
attoliters = zettaliters × 1e+39
For a page dedicated to this direction, see Zettaliter to Attoliter.
Understanding the Attoliter (aL)
Attoliter is 1e-18 liter units.
Understanding the Zettaliter (ZL)
Zettaliter is 1e+21 liter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zettaliters are in 1 attoliter?
1 attoliter equals 1e-39 zettaliters, using the exact defined conversion factor rather than an estimate.
How do I convert attoliter to zettaliter?
Multiply the attoliter value by 1e-39. The converter above does this instantly to whatever precision you set.
How do I convert zettaliter back to attoliter?
Use the reverse factor: 1 zettaliter equals 1e+39 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 zettaliter?
Zettaliter (ZL) is a unit of volume.
Is the attoliter to zettaliter conversion exact?
Yes. Both attoliter and zettaliter are defined by fixed standards rather than physical artifacts, so the factor of 1e-39 used above is exact to as many digits as you choose to display.