Microliter (µL)
One millionth of a liter, equal to one cubic millimeter. Used for very small liquid volumes.
1 microliter = 0.000001 liters (exactly).
About the microliter
Older laboratory papers often call this volume a lambda, written with the Greek letter, and that name has been discouraged since 2014 in favor of the microliter. The prefix micro, meaning one millionth, entered the metric prefix list in 1873, when the symbol mu was eventually chosen because the capital M was already taken by mega. The unit therefore combines a nineteenth-century prefix with the liter.
One microliter is 10 to the minus 6 liter, which is the same volume as one cubic millimeter and one thousandth of a milliliter. Some medical test results print it as mcL instead of using the Greek letter. Small volumes like this matter wherever tiny samples are pipetted or reported, and the figure used here is exactly 0.000001 liter.
Sources: Wikipedia: Litre; Wikipedia: Metric prefix
Microliter conversion chart
1 microliter expressed in every other volume unit:
| Unit | 1 microliter |
|---|---|
| Liters | 0.000001 |
| Milliliters | 0.001 |
| US Gallons | 2.641720524×10⁻⁷ |
| US Cups | 0.000004226752838 |
| US Fluid Ounces | 0.0000338140227 |
| Cubic Meters | 1×10⁻⁹ |
| Cubic Centimeters | 0.001 |
| US Quarts | 0.000001056688209 |
| US Pints | 0.000002113376419 |
| US Tablespoons | 0.0000676280454 |
| US Teaspoons | 0.0002028841362 |
| Metric Cups | 0.000004 |
| Metric Tablespoons | 0.00006666666667 |
| Metric Teaspoons | 0.0002 |
| Imperial Gallons | 2.199692483×10⁻⁷ |
| Imperial Pints | 0.000001759753986 |
| Imperial Fluid Ounces | 0.00003519507973 |
| Cubic Inches | 0.00006102374409 |
| Cubic Feet | 3.531466672×10⁻⁸ |
| Cubic Yards | 1.307950619×10⁻⁹ |
| Oil Barrels | 6.28981077×10⁻⁹ |
| Cubic Millimeters | 1 |
| Centiliters | 0.0001 |
| Deciliters | 0.00001 |
| Hectoliters | 1×10⁻⁸ |
| Cubic Kilometers | 1×10⁻¹⁸ |
| Australian Tablespoons | 0.00005 |
| US Legal Cups | 0.000004166666667 |
| Imperial Quarts | 8.798769932×10⁻⁷ |
| Cubic Miles | 2.399127586×10⁻¹⁹ |
| Wine Bottles | 0.000001333333333 |
| Magnums | 6.666666667×10⁻⁷ |
| Jeroboams | 3.333333333×10⁻⁷ |
| Methuselahs | 1.666666667×10⁻⁷ |
| Nebuchadnezzars | 6.666666667×10⁻⁸ |
| US Gills | 0.000008453505675 |
| US Fluid Drams | 0.0002705121816 |
| US Minims | 0.0162307309 |
| Jiggers | 0.0000225426818 |
| Pinches | 0.003246146179 |
| Dashes | 0.00162307309 |
| Imperial Gills | 0.000007039015946 |
| US Bushels | 2.837759326×10⁻⁸ |
| US Pecks | 1.13510373×10⁻⁷ |
| US Dry Quarts | 9.080829843×10⁻⁷ |
| US Dry Pints | 0.000001816165969 |
| US Dry Barrels | 8.648489809×10⁻⁹ |
| US Liquid Barrels | 8.386414361×10⁻⁹ |
| UK Beer Barrels | 6.110256897×10⁻⁹ |
| Firkins | 2.444102759×10⁻⁸ |
| Kilderkins | 1.222051379×10⁻⁸ |
| Hogsheads (ale) | 4.073504598×10⁻⁹ |
| Tierces | 6.28981077×10⁻⁹ |
| Hogsheads (wine) | 4.19320718×10⁻⁹ |
| Puncheons | 3.144905385×10⁻⁹ |
| Butts (pipe) | 2.09660359×10⁻⁹ |
| Tuns | 1.048301795×10⁻⁹ |
| Acre-feet | 8.107131938×10⁻¹³ |
| Cords | 2.758958338×10⁻¹⁰ |
| Board Feet | 4.237760007×10⁻⁷ |
| Cyathi | 0.00002198473282 |
| Sextarii | 0.000001832061069 |
| Congii | 3.053435115×10⁻⁷ |
| Modii | 1.145038168×10⁻⁷ |
| Amphorae | 3.816793893×10⁻⁸ |
| Omers | 4.545454545×10⁻⁷ |
| Hin | 2.727272727×10⁻⁷ |
| Baths (biblical) | 4.545454545×10⁻⁸ |
| Homers | 4.545454545×10⁻⁹ |
| Gō | 0.000005543523532 |
| Shō | 5.543523532×10⁻⁷ |
| Tō | 5.543523532×10⁻⁸ |
| Koku | 5.543523532×10⁻⁹ |
| Charkas | 0.000008130471299 |
| Shtofs | 8.130471299×10⁻⁷ |
| Vedros | 8.130471299×10⁻⁸ |
More Metric (SI) units
- liter (volume)
- milliliter (volume)
- cubic meter (volume)
- cubic centimeter (volume)
- cubic millimeter (volume)
- centiliter (volume)
- deciliter (volume)
- hectoliter (volume)
- meter (length)
- kilometer (length)
- centimeter (length)
- millimeter (length)
- micrometer (length)
- nanometer (length)
- picometer (length)
- decimeter (length)
Browse all volume units.