| Cover | Nov. 03, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 03, 2023 |
| Current Fiscal Year End Date | --06-30 |
| Entity File Number | 000-54853 |
| Entity Registrant Name | SmartMetric, Inc. |
| Entity Central Index Key | 0001301991 |
| Entity Tax Identification Number | 05-0543557 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 3960 Howard Hughes Parkway |
| Entity Address, Address Line Two | Suite 500 |
| Entity Address, City or Town | Las Vegas |
| Entity Address, State or Province | NV |
| Entity Address, Postal Zip Code | 89109 |
| City Area Code | (702) |
| Local Phone Number | 990-3687 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
