Reconstitution Calculator
Free offline reconstitution, dilution and molarity calculator for the lab.
About Reconstitution Calculator
Reconstitution Calculator is a free lab math tool by Peptara Labs, available as a browser extension and an MCP server. Enter the dry powder in a vial and the diluent you add, and it gives the concentration in mg/mL and mcg/mL, plus the volume that holds the amount you want per aliquot. It also converts mass, volume and concentration units, solves C1V1 = C2V2 dilutions, works out molarity from molecular weight, plans percent (w/v) solutions and lays out a serial dilution series tube by tube. It needs no permissions, collects no data and works fully offline. The MCP server (npx -y reconstitution-calculator-mcp) lets AI assistants run the same calculations. For laboratory calculations only. Always double check results.
Key features
Reconstitution and concentration math in mg/mL and mcg/mL
C1V1 = C2V2 dilutions, molarity and percent (w/v) solutions
Works offline as a browser extension and an MCP server

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