Zeptoliter is 1e-21 liter units.
Zeptoliters to Zettaliters Converter — zL to ZL
Convert Zeptoliter (zL) to Zettaliter (ZL) using the exact conversion factor (1 zeptoliter = 1e-42 zettaliter). See the formula, worked examples, and conversion table.
Zeptoliters 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-24 / 1e+18.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Zeptoliters to Zettaliters
Zeptoliter 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: Zeptoliter is 1e-21 liter units, and zettaliter is 1e+21 liter units.
Formula
zettaliters = zeptoliters × 1e-42
This factor comes from each unit's defined relationship to the category's base unit: 1 zeptoliter equals 1e-24 base units, and 1 zettaliter equals 1e+18 base units, so dividing one by the other gives the direct zeptoliter-to-zettaliter factor of 1e-42.
Simple example
1 zL × 1e-42 = 1e-42 ZL
1 zeptoliter = 1e-42 zettaliters.
Real-world example
10 zL × 1e-42 = 1e-41 ZL
10 zeptoliters = 1e-41 zettaliters.
Conversion table
| Zeptoliter (zL) | Zettaliter (ZL) |
|---|---|
| 1 zL | 1e-42 ZL |
| 5 zL | 5e-42 ZL |
| 10 zL | 1e-41 ZL |
| 25 zL | 2.5e-41 ZL |
| 50 zL | 5e-41 ZL |
| 100 zL | 1e-40 ZL |
Reverse conversion: Zettaliter to Zeptoliter
1e-42 ZL × 1e+42 = 1 zL
1e-42 zettaliters = 1 zeptoliters.
zeptoliters = zettaliters × 1e+42
For a page dedicated to this direction, see Zettaliter to Zeptoliter.
Understanding the Zeptoliter (zL)
Zeptoliter is 1e-21 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 zeptoliter?
1 zeptoliter equals 1e-42 zettaliters, using the exact defined conversion factor rather than an estimate.
How do I convert zeptoliter to zettaliter?
Multiply the zeptoliter value by 1e-42. The converter above does this instantly to whatever precision you set.
How do I convert zettaliter back to zeptoliter?
Use the reverse factor: 1 zettaliter equals 1e+42 zeptoliters. You can also use the swap control in the converter above to flip the direction instantly.
What is a zeptoliter?
Zeptoliter (zL) is a unit of volume.
What is a zettaliter?
Zettaliter (ZL) is a unit of volume.
Is the zeptoliter to zettaliter conversion exact?
Yes. Both zeptoliter and zettaliter are defined by fixed standards rather than physical artifacts, so the factor of 1e-42 used above is exact to as many digits as you choose to display.