Attoliter is 1e-18 liter units.
Attoliters to Hectoliters Converter — aL to hL
Convert Attoliter (aL) to Hectoliter (hL) using the exact conversion factor (1 attoliter = 1e-20 hectoliter). See the formula, worked examples, and conversion table.
Attoliters to Hectoliters 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.
Hectoliter is 100 liter units.
Result = input x 1e-21 / 0.1.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Attoliters to Hectoliters
Attoliter and Hectoliter 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 hectoliter is 100 liter units.
Formula
hectoliters = attoliters × 1e-20
This factor comes from each unit's defined relationship to the category's base unit: 1 attoliter equals 1e-21 base units, and 1 hectoliter equals 0.1 base units, so dividing one by the other gives the direct attoliter-to-hectoliter factor of 1e-20.
Simple example
1 aL × 1e-20 = 1e-20 hL
1 attoliter = 1e-20 hectoliters.
Real-world example
10 aL × 1e-20 = 1e-19 hL
10 attoliters = 1e-19 hectoliters.
Conversion table
| Attoliter (aL) | Hectoliter (hL) |
|---|---|
| 1 aL | 1e-20 hL |
| 5 aL | 5e-20 hL |
| 10 aL | 1e-19 hL |
| 25 aL | 2.5e-19 hL |
| 50 aL | 5e-19 hL |
| 100 aL | 1e-18 hL |
Reverse conversion: Hectoliter to Attoliter
1e-20 hL × 1e+20 = 1 aL
1e-20 hectoliters = 1 attoliters.
attoliters = hectoliters × 1e+20
For a page dedicated to this direction, see Hectoliter to Attoliter.
Understanding the Attoliter (aL)
Attoliter is 1e-18 liter units.
Understanding the Hectoliter (hL)
Hectoliter is 100 liter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectoliters are in 1 attoliter?
1 attoliter equals 1e-20 hectoliters, using the exact defined conversion factor rather than an estimate.
How do I convert attoliter to hectoliter?
Multiply the attoliter value by 1e-20. The converter above does this instantly to whatever precision you set.
How do I convert hectoliter back to attoliter?
Use the reverse factor: 1 hectoliter equals 1e+20 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 hectoliter?
Hectoliter (hL) is a unit of volume.
Is the attoliter to hectoliter conversion exact?
Yes. Both attoliter and hectoliter are defined by fixed standards rather than physical artifacts, so the factor of 1e-20 used above is exact to as many digits as you choose to display.