Alternatives
Products that do what ChemCalc - Chemistry Calculator does
Solve chemistry problems: mass fractions, concentrations etc
- 1
- 2IM
Hello HN! I'm happy to release this project today. It's a bidirectional calculator (hence the name bidicalc). I've been obsessed with the idea of making a spreadsheet where you can update both inputs and outputs, instead of regular spreadsheets where you can only update inputs. Please let me know what you think! Especially if you find bugs or good example use cases.
Dec 2025 · victorpoughon.github.io
- 3MC
2015 · molcalc.org
- 4
- 5AD
A new calculator software cannot really bring attention (https://chachatelier.fr/chalk/) However, I wrote a full article explaining why I had to build something "new" that does not behave like usual desktop calculator softwares : TL;DR All "small" calculator softwares I know share the same design flaws. And the GUI is not the only stumbling block in their poor efficiency. Handling correctly numerical approximations - expected or not - is crucial to trust the results. It is usually not done in lightweight tools. It should. So I prove that if I could do it, OS manufacturers…
2022
- 6
Molarity, mass & volume solver with live PubChem lookup
25d ago · toolsarena.net
- 7
- 8
- 9NNoteCalc▲267
2020 · github.com
- 10
- 11
a comprehensive zero-dependency command utility engineered
Jun 2026 · github.com
- 12
- 13AA
2022 · alexbarry.github.io
- 14
- 15
- 16
- 17
- 18CA
2015 · github.com
- 19PO
Mar 2026 · periodictableofelements.org
- 20
Complete Chemistry Toolkit for Students and Professionals
Jun 2026 · miguelfn.github.io
- 21CM
2015 · github.com
- 22
- 23
- 24
Ranked by how close each launch is in meaning, then by votes. Refine with your own description →