About GramToMol
We believe chemistry calculations should be free, accurate, and accessible to every student and scientist on Earth.
Making Chemistry Accessible for Everyone
GramToMol was founded in 2022 with a simple goal: eliminate the friction between a chemistry student and the answer they need.
Too many students struggle with unit conversions not because the concept is hard, but because they lack a fast, trustworthy tool. We built GramToMol to be that tool — free forever, with no registration, no ads that disrupt learning, and always showing the work so students actually learn.
Today, GramToMol serves over 2.5 million calculations per month across 180+ countries, from high school students to PhD researchers.
What We Stand For
Scientific Accuracy
All atomic masses sourced from IUPAC 2021 recommendations. We take accuracy seriously — a wrong calculation in chemistry can have real consequences.
Universal Access
Chemistry education shouldn't be paywalled. Every tool on GramToMol is free, forever. No account, no credit card, no limits.
Educational First
We don't just give answers — we show the work. Step-by-step solutions help students understand the process, not just memorize results.
Meet Our Experts
A small team of chemists, educators, and developers passionate about science education.
PhD in Physical Chemistry, Stanford University. 12 years of research and teaching experience.
Associate Professor of Chemistry, MIT. Author of 3 chemistry textbooks.
PhD in Analytical Chemistry. Specializes in solution chemistry and HPLC method development.
10 years building educational web applications. Passionate about making science tools accessible.
Have a Question or Suggestion?
We'd love to hear from students, teachers, and researchers. Your feedback helps us build better tools.
Contact Us →