Difference Between F1, F2 and F3 Explained
The difference between F1, F2 and F3 comes down to power, downforce, cost and purpose. Formula 1 is the top of the sport, while Formula 2 and Formula 3 are the junior series that prepare drivers for it.
What is F1, F2 and F3 racing
Formula 1, Formula 2 and Formula 3 are open-wheel single-seater championships run under FIA rules, and all three race on Formula 1 weekends. That shared paddock is the main reason fans confuse them. The difference is in purpose. Formula 1 is a world championship for teams that design and build their own cars. Formula 2 and Formula 3 are feeder series, also called junior formulae, where every team uses the same car and the main job is to find and train drivers.
The numbers in the names follow the order of the ladder. A driver usually comes through Formula 3 first, then Formula 2, then Formula 1. Below them sit Formula Regional and Formula 4, which are explained on the F1 driver pathway page.
Engines and power
The engines are the clearest difference between F1, F2 and F3:
- Formula 1: a 1.6 litre turbocharged V6 hybrid power unit, combined with electric motors and an energy store
- Formula 2: a 3.4 litre single turbocharged V6 from Mecachrome, rated at 620 hp at 8,750 rpm
- Formula 3: a 3.4 litre naturally aspirated V6 from Mecachrome, rated at 380 hp at 8,000 rpm
Formula 2 and Formula 3 use closely related engines, but the turbocharger in F2 adds a large amount of power. Formula 1's hybrid unit is a different technology altogether and produces far more total output than either junior engine.
F1 vs F2 vs F3 speed
Which car is faster, F1 or F2? Formula 1, clearly. FIA Formula 3 quotes a top speed of about 300 km/h for its car, and Formula 2 is quicker again thanks to its turbocharged engine and greater downforce. Formula 1 cars are faster still.
Top speed, though, tells only part of the story. When the three categories race at the same circuit, the gap per lap is large, and most of it is made in corners and braking zones, where Formula 1's aerodynamics and brakes are far ahead. A Formula 3 car pulls up to 2.6 G sideways according to the FIA; a Formula 1 car pulls considerably more. That is why drivers describe each step up as a shock, even when they arrive with titles.
Car size and design
Formula 1 cars are the longest, widest and most complex of the three. Each Formula 1 team designs its own chassis, aerodynamics and many components, within strict technical rules. Formula 2 and Formula 3 cars are designed by Dallara and are the same for every team. F2 runs the Dallara F2 2024, which weighs 795 kg including driver and fuel, and F3 runs the Dallara F3 2025.
All three carry the halo, the titanium bar over the cockpit that protects the driver's head. All three run on Pirelli tyres, which helps young drivers understand tyre behaviour before they reach Formula 1. For a closer look at the junior car, see Formula 3 car explained.
Who races where
Formula 1 teams pick their drivers on talent, results, experience and often commercial backing. Formula 2 and Formula 3 teams are separate racing teams, and many of their drivers belong to the junior academies of Formula 1 teams. Super licence points connect the levels: the F2 champion receives 40 points and the F3 champion 30, while 40 points over three seasons are needed to race in Formula 1.
In short, F3 is where drivers prove they can race at an international level, F2 is where they prove they are ready, and F1 is where they compete for the world championship.
Where F4 fits
The difference between F1, F2, F3 and F4 is mostly one of scale. Formula 4 is the entry level that the FIA launched in 2014 as the first step out of karting, with simple cars and national or regional championships, usually from the age of 15. It does not race on Formula 1 weekends as a world series, and it is meant to keep costs as low as single-seater racing allows. Formula Regional sits between F4 and F3. To find out how to begin at that level, read how to start single-seater racing.
There is no Formula 5 in the FIA ladder. The name has been used by a few national and club series, but it is not part of the route to Formula 1.
Sources: FIA Formula 2 and FIA Formula 3 car pages; Formula 1 beginner's guides; FIA information on Formula 4.