Anyone who watches a Formula 1 race closely will have noticed: as soon as they climb out of the car, before they even take off their helmet, the drivers step onto a scale in front of the officials. It is not a regulatory curiosity: the driver’s weight is part of the car’s weight, and one kilo too few can mean a disqualification instead of a win. Here is why Formula 1 drivers get weighed, how the procedure works in 2026 and what it says about a sport where every gram counts.

Updated September 2026.

In short: drivers are weighed because the car’s minimum weight, 768 kilograms in 2026, is measured with the driver on board, complete with race suit, helmet and seat. Weighing the driver separately allows the FIA to check that the car is legal even if the driver gets out straight away for the podium or interviews. There is also a medical reason: in a race a driver can lose 2 to 3 kilos of fluid, up to 4 in the hottest races. Since 2019 driver and seat together must weigh at least 80 kilos, with ballast for anyone lighter; from 2026 the minimum has risen to 82 kilos.

Why talent is not enough: how drivers prepare

Formula 1 drivers are among the fittest athletes in the world. In corners and under braking their bodies are subjected to accelerations above 5G, a force of more than five times their own weight: in 2024 the most demanding corner on the calendar, according to Mercedes, was the first one at Suzuka. The neck has to hold up the helmet under these forces for the whole race, which is why drivers train it with dedicated equipment such as the GS Harness from Gatherer Systems, used by drivers including Carlos Sainz and Lando Norris.

A typical day alternates endurance work, with cycling, running, rowing and swimming, with strength and high-intensity exercises, plus training for reflexes, coordination and concentration under stress. Steering and braking require far more strength than in a road car, and every race is also a prolonged cardiovascular effort.

Full kit, every time

The driver races covered from head to toe: fireproof suit, underwear, socks, gloves and balaclava, helmet and HANS, the device that protects the head and neck. The suit must meet the FIA 8856-2018 standard, mandatory in Formula 1 since 2020, which increased heat protection by 20% compared with the previous one; the helmet must meet the FIA 8860-2018 standard, in force since 2019. Romain Grosjean’s crash in Bahrain in 2020, when he escaped from a burning car after a 67G impact, showed how much this equipment can save a life.

The flip side is the heat. In the cockpit, in the most extreme conditions, temperatures exceed 50 degrees: at the 2023 Qatar Grand Prix Logan Sargeant retired with dehydration, Esteban Ocon was sick in his helmet and other drivers needed medical treatment. Since then the FIA has introduced the “Heat Hazard” declaration: when the forecast heat index exceeds 31 degrees, cars must be fitted with a driver cooling system, the driver can choose whether to wear the cooling vest, and the car’s minimum weight increases by 5 kilos to compensate. It was declared for the first time in Singapore in 2025; in 2026 it happened in Austria and at Monza.

Why Formula 1 drivers are weighed

There are two reasons: technical and medical.

The technical reason: the driver is part of the car’s weight

The regulations set a minimum weight for the car, and that weight includes the driver with all their equipment, the seat and any ballast, without fuel. In 2026 the minimum is 768 kilograms, 32 fewer than the 800 of 2025: the technical regulations express it as 724 kilograms plus the nominal tyre mass, with two extra kilos during qualifying.

So as not to favour lighter drivers, since 2019 the regulations have also set a minimum weight for the driver: driver and seat had to weigh at least 80 kilos, and anyone lighter had to add ballast, sealed by the FIA and fixed in the cockpit. In 2026 the minimum for the driver, including seat and ballast, has risen to 82 kilos. Each driver’s reference weight is established by the FIA at the first race of the season.

During practice and qualifying cars are called to the weighbridge at random, and at the end of qualifying the FIA technical delegate weighs every driver. After the race every classified car can be weighed: if the driver gets out first, to go to the podium or interviews, they are weighed separately with all their equipment, helmet and gloves included, and their weight is added to that of the car. A car below the minimum weight is disqualified. It happened to George Russell at the 2024 Belgian Grand Prix: he had won, but his Mercedes was 1.5 kilos under the limit and victory went to Lewis Hamilton. His own weight loss during the race also contributed to the problem.

Skipping the weighbridge is itself a breach. In Baku in 2019 Pierre Gasly did not stop when called to the weighbridge and had to start from the pit lane; since 2020 the penalty has been decided by the stewards.

The medical reason: how much weight is lost in a race

In a normal race a driver loses 2 to 3 kilos of sweat, up to 4 in the hottest and most humid races, such as Singapore, and especially for taller drivers. Knowing the weight before and after the race helps doctors and trainers manage hydration and recovery in the following days.

How much weight matters in Formula 1

In a sport decided by thousandths, every kilo affects lap time. Nico Rosberg, world champion in 2016, has said that he stopped cycling during the summer of that year to lose muscle mass in his legs: one kilo less was worth about three hundredths of a second per lap at a track like Suzuka.

Mercedes’ history is also tied to a weight legend: the story goes that in 1934 the mechanics scraped the white paint off the car to bring it within the weight limit, revealing the aluminium underneath and giving rise to the nickname Silver Arrows. Historians, however, consider this story, told by team manager Alfred Neubauer many years later, more a myth than a documented fact.

Why Formula 1 cars kept getting heavier, and now weigh less

For almost ten years car weight kept rising: from 691 kilograms in 2014, with the arrival of hybrid engines, to 798 in 2022 and 800 in 2025. The causes were safety, from the Halo to crash structures, and technology, from batteries to bigger tyres. With the 2026 rules the trend has reversed for the first time: shorter and narrower cars, 32 kilos lighter, and a new focus on agility.

For anyone looking at Formula 1 as a sponsor, these details tell the story of the platform’s value: a sport in which technology, athletic preparation and safety are pushed to the limit, and in which every detail makes the news. If you want to understand how to associate your brand with this world, start from our page on Formula 1 sponsorship or read our Formula 1 glossary. For a tailor-made project, contact us.

Sources: FIA, 2026 sporting regulations; FIA, 2026 technical regulations; Motorsport.com, why drivers get weighed; Formula 1, the 2026 rules; RaceFans, the 2022 minimum weight; Formula 1, Russell’s disqualification at Spa; Sky Sports, Russell’s weight loss; Formula 1, Gasly’s missed weighbridge; Autosport, the weighbridge rule from 2020; CNN, the heat in Qatar 2023; Formula 1, the Monza 2026 Heat Hazard; ESPN, the Singapore heat; Mercedes, G-forces in Formula 1; Formula 1, the helmet standard; FIA, the race suit standard; FIA, the investigation into Grosjean’s crash; Gatherer Systems, the GS Harness; GPFans, Rosberg and weight; Motorsport.com, the Silver Arrows myth.