The 2021 FIA Formula 3 Championship will consist of 7 rounds and a total of 21 races.
2021 Races
| Round | Grand Prix | Circuit | Event Title | Date | Winner | Team | Laps | Race Time |
|---|---|---|---|---|---|---|---|---|
| 1 | Spain | Barcelona | Race 1 | 8 May 2021 | Alexander Smolyar | ART Grand Prix | 21 | 36:23.523 |
| 1 | Spain | Barcelona | Race 2 | 8 May 2021 | Olli Caldwell | PREMA Racing | 22 | 40:42.623 |
| 1 | Spain | Barcelona | Race 3 | 9 May 2021 | Dennis Hauger | PREMA Racing | 22 | 35:47.216 |
| 2 | France | Le Castellet | Race 1 | 19 June 2021 | Alexander Smolyar | ART Grand Prix | 20 | 38:26.581 |
| 2 | France | Le Castellet | Race 2 | 19 June 2021 | Arthur Leclerc | PREMA Racing | 20 | 37:46.891 |
| 2 | France | Le Castellet | Race 3 | 20 June 2021 | Jack Doohan | Trident | 20 | 43:19.510 |
| 3 | Austria | Spielberg | Race 1 | 3 July 2021 | Dennis Hauger | PREMA Racing | 24 | 33:39.140 |
| 3 | Austria | Spielberg | Race 2 | 3 July 2021 | David Schumacher | Trident | 24 | 35:26.498 |
| 3 | Austria | Spielberg | Race 3 | 4 July 2021 | Frederik Vesti | ART Grand Prix | 24 | 36:17.937 |
| 4 | Hungary | Budapest | Race 1 | 31 July 2021 | ||||
| 4 | Hungary | Budapest | Race 2 | 31 July 2021 | ||||
| 4 | Hungary | Budapest | Race 3 | 1 August 2021 | ||||
| 5 | Belgium | Spa-Francorchamps | Race 1 | 28 August 2021 | ||||
| 5 | Belgium | Spa-Francorchamps | Race 2 | 28 August 2021 | ||||
| 5 | Belgium | Spa-Francorchamps | Race 3 | 29 August 2021 | ||||
| 6 | Netherlands | Zandvoort | Race 1 | 4 September 2021 | ||||
| 6 | Netherlands | Zandvoort | Race 2 | 4 September 2021 | ||||
| 6 | Netherlands | Zandvoort | Race 3 | 5 September 2021 | ||||
| 7 | United States | Austin | Race 1 | 23 October 2021 | ||||
| 7 | United States | Austin | Race 2 | 23 October 2021 | ||||
| 7 | United States | Austin | Race 3 | 24 October 2021 |