| Cover | Jul. 24, 2024 |
| Cover [Abstract] | |
| Document Type | S-1 |
| Amendment Flag | false |
| Entity Registrant Name | EXPION360 INC. |
| Entity Central Index Key | 0001894954 |
| Entity Tax Identification Number | 81-2701049 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 2025 SW Deerhound Ave. |
| Entity Address, City or Town | Redmond |
| Entity Address, State or Province | OR |
| Entity Address, Postal Zip Code | 97756 |
| City Area Code | (541) |
| Local Phone Number | 797-6714 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Small Business | true |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
