A fast, elegant periodic table and molecular weight calculator for macOS. Built for students, educators, and researchers.
Download on the Mac App StoreAll 118 elements with atomic weight, category, group, and period. Color-coded by element type for quick reference.
Enter any chemical formula and instantly calculate the molecular weight. Supports complex formulas like C6H12O6.
Find elements by name, symbol, or atomic number. Filter by category, period, or group.
Built with SwiftUI for a clean, native experience. Supports dark mode and Retina displays.
All data stays on your device. No accounts, no tracking, no analytics. Just science.
Under 5MB. Launches instantly. No internet required for core functionality.
Electrum is named after the naturally occurring alloy of gold and silver, used since antiquity for coinage and jewelry. The name reflects our commitment to combining precision with elegance in scientific tools.
Whether you're a chemistry student preparing for exams, a researcher double-checking molecular weights, or an educator looking for a quick reference tool, Electrum provides the data you need in a clean, distraction-free interface.
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Electrum