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Amounts & concentration

Understand the relationship between mg, mL, and mg/mL.

Concentration calculator

Use an amount and a final volume, or choose your own target concentration.

What would you like to find?
Use the mass of one identified material.
What does this mean?

Final solution volume is the total volume after the material and liquid have been combined.

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Enter numbers only. A comma is treated as a decimal point, not a thousands separator.

Final solution volume is not automatically the amount of liquid added. This arithmetic does not establish a suitable solvent, stability, compatibility, container capacity, or a personal-use protocol.

Units and other product forms

1 mg = 1,000 mcg. mL measures volume. mg/mL measures concentration. There is no generic conversion from IU to mg.

For a blend, each identified component needs its own mass and calculation. A liquid product has an existing concentration and total volume; this tool does not provide dilution instructions.

Do not multiply an already quantified amount by purity again. A chromatographic purity percentage is not the fraction of all powder by weight.

Read the unit definitions