Femtoliter is 1e-15 liter units.
Femtoliters to Microliters Converter — fL to uL
Convert Femtoliter (fL) to Microliter (uL) using the exact conversion factor (1 femtoliter = 1e-9 microliter). See the formula, worked examples, and conversion table.
Femtoliters to Microliters 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.
Microliter is 0.000001 liter units.
Result = input x 1e-18 / 1e-9.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Femtoliters to Microliters
Femtoliter and Microliter 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: Femtoliter is 1e-15 liter units, and microliter is 0.000001 liter units.
Formula
microliters = femtoliters × 1e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 femtoliter equals 1e-18 base units, and 1 microliter equals 1e-9 base units, so dividing one by the other gives the direct femtoliter-to-microliter factor of 1e-9.
Simple example
1 fL × 1e-9 = 1e-9 uL
1 femtoliter = 1e-9 microliters.
Real-world example
10 fL × 1e-9 = 1e-8 uL
10 femtoliters = 1e-8 microliters.
Conversion table
| Femtoliter (fL) | Microliter (uL) |
|---|---|
| 1 fL | 1e-9 uL |
| 5 fL | 5e-9 uL |
| 10 fL | 1e-8 uL |
| 25 fL | 2.5e-8 uL |
| 50 fL | 5e-8 uL |
| 100 fL | 1e-7 uL |
Reverse conversion: Microliter to Femtoliter
1e-9 uL × 1000000000 = 1 fL
1e-9 microliters = 1 femtoliter.
femtoliters = microliters × 1000000000
For a page dedicated to this direction, see Microliter to Femtoliter.
Understanding the Femtoliter (fL)
Femtoliter is 1e-15 liter units.
Understanding the Microliter (uL)
Microliter is 0.000001 liter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many microliters are in 1 femtoliter?
1 femtoliter equals 1e-9 microliters, using the exact defined conversion factor rather than an estimate.
How do I convert femtoliter to microliter?
Multiply the femtoliter value by 1e-9. The converter above does this instantly to whatever precision you set.
How do I convert microliter back to femtoliter?
Use the reverse factor: 1 microliter equals 1,000,000,000 femtoliters. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtoliter?
Femtoliter (fL) is a unit of volume.
What is a microliter?
Microliter (uL) is a unit of volume.
Is the femtoliter to microliter conversion exact?
Yes. Both femtoliter and microliter are defined by fixed standards rather than physical artifacts, so the factor of 1e-9 used above is exact to as many digits as you choose to display.