How much do have to weigh sit in the front of a car Richmond IN?

There's no weight limit for sitting in the front seat of a car in Richmond, Indiana, or anywhere else in the United States. Weight limits for vehicle occupants are determined by the vehicle's safety features and overall structural integrity, not by a specific law regarding passenger weight. However, if someone is so large that they interfere with the safe operation of the vehicle (e.g., obstructing airbags, pedals, or vision), it could be considered unsafe driving and subject to penalties.