Formulas used
- Mass and volume conversions use a shared base unit inside each category.
- Concentration = amount in mcg / volume in mL.
- Moles = grams / molecular weight in g/mol.
- Molar units convert through nM as the category base.
Tools
Unit Converter
Convert common lab units and concentration formats without mixing up mg, mcg, uL, mL, nM, uM, or mM.
Unit conversion
Result
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Choose units from the same category.
Concentration
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Mass to moles
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Calculator notes
Unit conversion reference
This converter handles direct conversions within matching categories: mass, volume, amount of substance, mass concentration, and molar concentration. It also calculates concentration from amount and volume, and moles from mass plus molecular weight.
Direct conversion is only possible inside the same category. Converting mass to moles requires molecular weight.
Common inputs
Supported entries include ng, mcg, mg, uL, mL, nM, uM, and mM.
Related terms
See concentration, mcg/mL, mg/mL, molar, and molecular weight.
Related tools
Pair this page with the reconstitution calculator for concentration and syringe math, or the peptide builder when molecular weight needs to come from a sequence.