The UK Chemistry Olympiad, run by the Royal Society of Chemistry, is Britain’s largest school chemistry competition, drawing well over ten thousand UK entrants a year while also opening Round 1 to qualifying overseas schools. Its defining feature is the question style: almost nothing is pure recall.
Each problem builds a long, unfamiliar context — drug synthesis, materials, environmental or energy chemistry, food science — then walks candidates through derivations, calculations and explanations using A Level principles they already hold. It measures thinking with chemistry rather than memorised conclusions, which often unsettles students trained mainly on drilled question banks.
Round 1 is a two-hour paper sat in the student’s own school, invigilated and marked there against the RSC mark scheme; for the 2027 season it falls on Thursday 21 January 2027, with school registration open from 16 September 2026 to 11 January 2027. About two-thirds of entrants earn a gold, silver or bronze certificate, with thresholds reset annually — bronze is accessible, gold genuinely selective.
Roughly 30 of the highest UK scorers go to Round 2 over Easter at a university chemistry department for practical training and testing, advanced lectures and a theory exam, from which four are chosen for the UK team. They train in May and again in late June before competing at the International Chemistry Olympiad.
Entry is free in the British Isles; overseas schools pay via ASEEDER China or directly to the RSC, and overseas entrants sit Round 1 only.



