Microliter is 0.000001 liter units.
Microliters to Femtoliters Converter — uL to fL
Convert Microliter (uL) to Femtoliter (fL) using the exact conversion factor (1 microliter = 1,000,000,000 femtoliter). See the formula, worked examples, and conversion table.
Microliters to Femtoliters 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.
Femtoliter is 1e-15 liter units.
Result = input x 1e-9 / 1e-18.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Microliters to Femtoliters
Microliter and Femtoliter 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: Microliter is 0.000001 liter units, and femtoliter is 1e-15 liter units.
Formula
femtoliters = microliters × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 microliter equals 1e-9 base units, and 1 femtoliter equals 1e-18 base units, so dividing one by the other gives the direct microliter-to-femtoliter factor of 1000000000.
Simple example
1 uL × 1000000000 = 1,000,000,000 fL
1 microliter = 1,000,000,000 femtoliters.
Real-world example
10 uL × 1000000000 = 10,000,000,000 fL
10 microliters = 10,000,000,000 femtoliters.
Conversion table
| Microliter (uL) | Femtoliter (fL) |
|---|---|
| 1 uL | 1,000,000,000 fL |
| 5 uL | 5,000,000,000 fL |
| 10 uL | 10,000,000,000 fL |
| 25 uL | 25,000,000,000 fL |
| 50 uL | 50,000,000,000 fL |
| 100 uL | 100,000,000,000 fL |
Reverse conversion: Femtoliter to Microliter
1 fL × 1e-9 = 1e-9 uL
1 femtoliter = 1e-9 microliters.
microliters = femtoliters × 1e-9
For a page dedicated to this direction, see Femtoliter to Microliter.
Understanding the Microliter (uL)
Microliter is 0.000001 liter units.
Understanding the Femtoliter (fL)
Femtoliter is 1e-15 liter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtoliters are in 1 microliter?
1 microliter equals 1,000,000,000 femtoliters, using the exact defined conversion factor rather than an estimate.
How do I convert microliter to femtoliter?
Multiply the microliter value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert femtoliter back to microliter?
Use the reverse factor: 1 femtoliter equals 1e-9 microliters. You can also use the swap control in the converter above to flip the direction instantly.
What is a microliter?
Microliter (uL) is a unit of volume.
What is a femtoliter?
Femtoliter (fL) is a unit of volume.
Is the microliter to femtoliter conversion exact?
Yes. Both microliter and femtoliter are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.