| Nominative | kilohertz |
| Genitive | kilohertzu |
| Dative | kilohertzu |
| Accusative | kilohertz |
| Vocative | kilohertze |
| Locative | kilohertzu |
| Instrumental | kilohertzem |
| Nominative | kilohertzy |
| Genitive | kilohertzů |
| Dative | kilohertzům |
| Accusative | kilohertzy |
| Vocative | kilohertzy |
| Locative | kilohertzech; kilohertzích |
| Instrumental | kilohertzy |