| 1 | Argentine Grand Prix | 1978-01-15 | Autódromo Juan y Oscar Gálvez
Buenos Aires, Argentina | Mario Andretti (Team Lotus) |
| 2 | Brazilian Grand Prix | 1978-01-29 | Autódromo Internacional Nelson Piquet
Rio de Janeiro, Brazil | Carlos Reutemann (Ferrari) |
| 3 | South African Grand Prix | 1978-03-04 | Kyalami
Midrand, South Africa | Ronnie Peterson (Team Lotus) |
| 4 | United States Grand Prix West | 1978-04-02 | Long Beach
California, USA | Carlos Reutemann (Ferrari) |
| 5 | Monaco Grand Prix | 1978-05-07 | Circuit de Monaco
Monte-Carlo, Monaco | Patrick Depailler (Tyrrell) |
| 6 | Belgian Grand Prix | 1978-05-21 | Zolder
Heusden-Zolder, Belgium | Mario Andretti (Team Lotus) |
| 7 | Spanish Grand Prix | 1978-06-04 | Jarama
Madrid, Spain | Mario Andretti (Team Lotus) |
| 8 | Swedish Grand Prix | 1978-06-17 | Scandinavian Raceway
Anderstorp, Sweden | Niki Lauda (Brabham) |
| 9 | French Grand Prix | 1978-07-02 | Circuit Paul Ricard
Le Castellet, France | Mario Andretti (Team Lotus) |
| 10 | British Grand Prix | 1978-07-16 | Brands Hatch
Kent, UK | Carlos Reutemann (Ferrari) |
| 11 | German Grand Prix | 1978-07-30 | Hockenheimring
Hockenheim, Germany | Mario Andretti (Team Lotus) |
| 12 | Austrian Grand Prix | 1978-08-13 | Red Bull Ring
Spielberg, Austria | Ronnie Peterson (Team Lotus) |
| 13 | Dutch Grand Prix | 1978-08-27 | Circuit Park Zandvoort
Zandvoort, Netherlands | Mario Andretti (Team Lotus) |
| 14 | Italian Grand Prix | 1978-09-10 | Autodromo Nazionale di Monza
Monza, Italy | Niki Lauda (Brabham) |
| 15 | United States Grand Prix | 1978-10-01 | Watkins Glen
New York State, USA | Carlos Reutemann (Ferrari) |
| 16 | Canadian Grand Prix | 1978-10-08 | Circuit Gilles Villeneuve
Montreal, Canada | Gilles Villeneuve (Ferrari) |