Laboratory solution concentration calculator
Unit arithmetic for laboratory solutions. You enter every number; nothing is pre-filled or suggested. Use a decimal point (2.5, not 2,5).
Sample mass and solvent volume to concentration.
Result
Enter your numbers and choose Calculate.
Formulas
- Concentration: mg/mL = mass (mg) ÷ volume (mL). µg/mL = mg/mL × 1000.
- Solvent volume: volume (mL) = mass (mg) ÷ target concentration (mg/mL).
- Aliquot volume: volume (mL) = mass wanted (mg) ÷ solution concentration (mg/mL). µL = mL × 1000.
- Molar: mM = mg/mL ÷ molecular weight (g/mol) × 1000.
- Units: 1 mg = 1000 µg. 1 mL = 1000 µL.
Background reading
The arithmetic on this page is explained, with its assumptions, in these guides.
Guides
- Reconstitution Math: How to Work Out Solution Concentration
- How to Measure Peptide Concentration: UV Absorbance, Amino Acid Analysis and Dye Assays
- Sterile Filtration of Peptide Solutions: Membranes, Peptide Losses and Integrity
- Peptide Purity Versus Net Peptide Content
- Freeze-Thaw Cycles and Aliquoting: Protecting Peptide Stock Solutions
- Peptide Adsorption to Labware: Why Dilute Solutions Lose Peptide
Glossary terms
Research use only. For laboratory research use only. Not for human or veterinary use. This page performs unit arithmetic on the numbers you enter and gives no recommendations about amounts. Check results against your own protocol and records. Molecular weights in the product list are the values shown on each product page.
