Scientific use note

What this tool does: scales common fixed buffer recipes, calculates stock dilution volumes, or calculates mass from molarity, volume, and molecular weight.
What this tool does not do: replace institutional protocols, validate sterility, provide clinical or manufacturing-grade validation, calculate arbitrary pH recipes in v1, or replace SDS/MSDS review.
Research-use reference only. Verify all calculations against your institutional protocol before use. Check SDS/MSDS documentation for each reagent and follow standard laboratory PPE, handling, and waste-disposal procedures.
Hydration state matters. Match the molecular weight to the exact reagent form on your bottle.

Molarity-to-mass calculator

Convert target molarity, final volume, and molecular weight into the mass required for solution preparation. All calculations run locally in your browser.

Target molarity

Molarity unit

Final volume

Volume unit

Optional chemical selector

Molecular weight (g/mol)

Required mass

0.606 g

605.7 mg

Formula explanation

Make sure the molecular weight matches the exact reagent form, including hydration state.