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r/AskChemistry↗

We are chemists and scientists who help demystify molecular behavior and apply discipline to naughty, wayward reactions, with a dash of wit & humor. From basic principles to advanced topics, we welcome discussion of all levels of chemistry & related fields (eg. pharmacology, biology, physics). Share links, images, and citations to enhance discussions. Expect science-fueled answers, colorful discussion, and perhaps a touch of electron-bullying.

53k subscribers274 posts / mo in Sep 2026234 authors / mosince 2021

r/AskChemistry has 53k members (+48% over the last 12 months). It gets about 274 posts a month from 234 people. Top topics: Crystal Growing, Copper Projects & Techniques and Chemistry Exams & Notes.

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Size and growth

How r/AskChemistry has grown

r/AskChemistry

Subscriber growth

Subscribers over time

+48%in 12 months · +9.8% in 3 months · +2.5% in 1 month
Oct 202653k
Growing53k subscribers
  • no data — drawn from 0 at creation (Jul 2021)
Live · through Oct 2026
r/AskChemistry

Monthly activity

Posts, comments and authors per month

−7.1%vs Sep 2025 · +5.5% last 3 months vs the 3 before
Sep 2026274
QuieterPeaked at 321 in Dec 2024
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/AskChemistry

Top topics

Share of the subreddit's posts

  1. Crystal Growing0.5%
  2. Copper Projects & Techniques0.4%
  3. Chemistry Exams & Notes0.4%
  4. Seeking Answers0.4%
  5. Chemistry Nuggets0.3%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. Doi
  2. ScienceDirect
  3. ResearchGate
  4. iupac.org
  5. Wiley

The full report

Everything else about r/AskChemistry

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research