| Cover | Nov. 11, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 11, 2021 |
| Entity File Number | 001-34611 |
| Entity Registrant Name | CELSIUS HOLDINGS, INC. |
| Entity Central Index Key | 0001341766 |
| Entity Tax Identification Number | 20-2745790 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 2424 N Federal Highway |
| Entity Address, Address Line Two | Suite 208 |
| Entity Address, City or Town | Boca Raton |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33431 |
| City Area Code | 561 |
| Local Phone Number | 276-2239 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Trading Symbol | CELH |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
