Microliters (µL)

The microliter is one millionth of a liter, the same as a cubic millimeter.

Convert microliters to any volume unit

1 microliter = 0.000001 liters

Quick facts

Unit
Microliter (plural: microliters)
Symbol
µL
Measures
Volume / Capacity
System
Metric
Equals
0.000001 liters
Definition
One millionth of a liter, exactly one cubic millimeter.
Also written
microlitre, uL, µl, mcL

1 microliter in other units

Liters0.000001 L
Gallons2.6417205 × 10-7 gal
Milliliters0.001 mL
Cups0.000004226753 cup
Fluid ounces0.000033814023 fl oz
Tablespoons0.000067628045 tbsp
Teaspoons0.000202884136 tsp
Cubic meters1 × 10-9 m³

What is a microliter?

The microliter is one millionth of a liter, the same as a cubic millimeter. It is the standard unit in laboratories, where pipettes measure from about 0.1 µL to 1,000 µL, and in medicine for blood tests.

Where the microliter sits among volume units

The microliter is number 5 of 234 on our scale of volume units, ordered from smallest to largest.

What microliters are used for

  • Laboratory pipetting
  • Blood glucose test strips (under 1 µL of blood)
  • Blood cell counts (cells per µL)

Microliters in real life

  • A drop of water is about 50 µL
  • A glucose meter needs about 0.5 µL of blood

Top microliter conversions

Common amounts of microliters

Convert microliters to all 233 other units

Metric

US liquid

US dry

Imperial (UK)

Wine & spirits

Cooking (metric & informal)

Oil, gas & shipping

Scientific

Ancient

East & Southeast Asian

European (pre-metric)

Everyday comparisons

Convert to microliters

Frequently asked questions

What is a microliter?

The microliter is one millionth of a liter, the same as a cubic millimeter.

How is the microliter defined?

One millionth of a liter, exactly one cubic millimeter.

How many liters are in a microliter?

One microliter equals 0.000001 liters.

How many gallons are in a microliter?

One microliter equals 2.6417205e-7 gallons.

How many milliliters are in a microliter?

One microliter equals 0.001 milliliters.