| Nominative | rubl |
| Genitive | rublu; ruble |
| Dative | rublu; rubli |
| Accusative | rubl |
| Vocative | ruble; rubli |
| Locative | rublu; ruble; rubli |
| Instrumental | rublem |
| Nominative | rubly; ruble |
| Genitive | rublů |
| Dative | rublům |
| Accusative | rubly; ruble |
| Vocative | rubly; ruble |
| Locative | rublech; rublích |
| Instrumental | rubly; rubli |