| Shareholder Report | 6 Months Ended |
| Aug. 31, 2024 USD ($) Holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Federated Hermes ETF Trust |
| Entity Central Index Key | 0001849998 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| C000231759 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Short Duration High Yield ETF |
| Trading Symbol | FHYS |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Short Duration High Yield ETF (the "Fund") for the period of March 1, 2024 to August 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Federated Hermes Short Duration High Yield ETF $26 0.50% |
| Expenses Paid, Amount | $ 26 |
| Expense Ratio, Percent | 0.50% |
| AssetsNet | $ 25,653,931 |
| Holdings Count | Holding | 185 |
| InvestmentCompanyPortfolioTurnover | 32% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $25,653,931 Number of Investments 185 Portfolio Turnover 32% |
| Holdings [Text Block] | Top Index Classifications (% of Net Assets) Value Value Chemicals 3.8% Automotive 4.2% Consumer Cyclical Services 4.2% Independent Energy 4.7% Building Materials 4.8% Health Care 4.9% Insurance - P&C 6.1% Midstream 6.4% Gaming 6.4% Technology 11.0% |
| Material Fund Change [Text Block] | |
