Molecular Mass

chemcalc.org

Online calculator for molecular formula, molecular weight, elemental composition, and isotopic distribution. Java recommended.

239 visits May 31, 2024 Details

formol.sourceforge.net

Open source command-line molar weight calculator. C++ source code and Linux packages available.

412 visits Jan 3, 2026 Details

defoort.free.fr

Free software for Windows for the calculation of molecular weights. Also available in French.

309 visits Feb 27, 2026 Details

chemie.fu-berlin.de

Very simple web-based utility for finding the molecular mass, elemental composition, and degree of unsaturation given a chemical formula.

214 visits Mar 1, 2025 Details