MoldChem Tools

What it does

MoldChem Tools is a free suite of 63+ professional-grade chemistry calculators and lookups — molar mass, molarity, dilutions, pH and buffers, NFPA and GHS labels, the periodic table, and more. Every calculation runs client-side in your browser. No login, no paywall, no tracking, no ads. Methods are transparent and cited.

Free chemistry calculators and lookups from MoldChem: molecular weight, dilutions, pH, NFPA, the periodic table and 75 more. No login, no paywall.

Calculators and lookups for everyday chemistry — molar mass, dilutions, pH, NFPA, the periodic table, and 75 more. No login, no paywall. The calculators do their work locally, with no server round-trip. Type a value and the answer updates as you go. Each tool spells out the formula it uses — Henderson-Hasselbalch, Beer-Lambert, Arrhenius and the rest — with sources, so you can check the result. NFPA diamonds, GHS labels, exposure limits and compatibility checks are here too — with a clear note that they don't replace an official SDS. NFPA diamonds, GHS labels and prep cards are all printable. Hand the page to your team or pin it on the cabinet. Yes. All 80 chemistry calculators and lookups…from tools.moldchem.com

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