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Laboratory Unit Converter
Convert common laboratory mass and volume units quickly and accurately.
Mass Converter
Convert between grams (g), milligrams (mg), and micrograms (mcg).
Volume Converter
Convert between litres (L), millilitres (mL), and microlitres (µL).
Laboratory Quick Reference
How the Converter Works
A simple way to convert between common laboratory mass and volume units.
Convert mass units
Convert between grams, milligrams, and micrograms using metric relationships that scale by factors of 1,000.
1 g = 1,000 mg
1 mg = 1,000 mcg
1 g = 1,000,000 mcg
Convert volume units
Convert between litres, millilitres, and microlitres using the same metric scaling.
1 L = 1,000 mL
1 mL = 1,000 µL
1 L = 1,000,000 µL
Quick Conversion Examples
Here are some common examples to show how the converter works.
1 gram
1 gram equals 1,000 milligrams.
1 g = 1,000 mg
What happened: The value increased because milligrams are a smaller unit than grams.
2.5 milligrams
2.5 milligrams equals 2,500 micrograms.
2.5 mg = 2,500 mcg
What happened: Converting from milligrams to micrograms multiplies the value by 1,000.
0.5 millilitres
0.5 millilitres equals 500 microlitres.
0.5 mL = 500 µL
What happened: One millilitre contains 1,000 microlitres, so 0.5 mL equals 500 µL.
Frequently Asked Questions
Quick answers to common questions about laboratory unit conversion.
There are 1,000 micrograms in 1 milligram. A microgram is therefore a much smaller unit of mass. For example, 0.5 mg = 500 mcg.
There are 1,000 microlitres in 1 millilitre. For example, 0.25 mL = 250 µL.
Not by unit conversion alone. Milligrams measure mass, while millilitres measure volume. To convert between them, you need additional information such as the concentration of the solution or the density of the material.
Mass describes how much material is present and is commonly measured in grams, milligrams, or micrograms. Volume describes how much space a liquid occupies and is commonly measured in litres, millilitres, or microlitres.
No. A microlitre is a unit of volume, while syringe units depend on the syringe scale. On a U-100 syringe, for example, 1 unit = 0.01 mL = 10 µL.
No. This tool only converts known laboratory units. It does not recommend, determine, or evaluate an appropriate research amount.
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