Fun and quirky Education
Mole Day
A chemistry celebration held on 23 October from 6.02am to 6.02pm, marking Avogadro's number, 6.02 x 10^23.
- UK (not marked)
- USA
- International (not marked)
OrganiserNational Mole Day Foundation
ListingAdded by us from official sources
Last checked19 October 2026
First heldNot known
About the day
The National Mole Day Foundation, a non-profit run by chemistry teachers, promotes the day. Schools use it to spark interest in chemistry.
Dates for the next three years
| Year | Date | Where | Status |
|---|---|---|---|
| 2026 | Friday 23 October 2026 | USA | Same date every year |
| 2027 | Saturday 23 October 2027 | USA | Same date every year |
| 2028 | Monday 23 October 2028 | USA | Same date every year |
Where this information comes from
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