Molecular Mass

ChemCalc

chemcalc.org

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

239 visits May 31, 2024 Details

Formol

formol.sourceforge.net

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

411 visits Jan 3, 2026 Details

McDalton

hem.fyristorg.com

Free formula mass calculator for Windows, uses the latest values of atomic weights as recommended by IUPAC. For educational purposes, shows calculations as well as the uncertainty …

161 visits Apr 24, 2025 Details

Mole Calc

defoort.free.fr

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

308 visits Feb 27, 2026 Details

Molecular weight and elemental analysis calculator

st.hirosaki-u.ac.jp

This unix program calculates the formula weight and the element distribution for a given chemical formula.

410 visits Oct 14, 2024 Details

Molecular Weight Calculation

chemie.fu-berlin.de

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

213 visits Mar 1, 2025 Details

Molecular Weight Calculator

jjorg.chem.unc.edu

Calculate the molecular weight and percent composition.

32 visits Mar 30, 2024 Details

Molecular Weight Calculator

humboldt1.com

A web-based program that calculates the number of constituent atoms, molecular weight, and percent composition based on a molecular formula.

341 visits Apr 17, 2026 Details

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