What is the safe distance between two vehicles?
John Hall
Updated on June 02, 2026
The rule of thumb is to maintain at least a three-second following distance, giving you time to react and avoid potentially dangerous situations. You can calculate this by using a fixed object, such as a pole or an overpass to determine how far in front of you the car is.
What is the distance between two vehicles?
Many drivers follow the “three-second rule.” In other words, you should keep three seconds' worth of space between your car and the car in front of you in order to maintain a safe following distance.How many car lengths should be between cars?
Rule #1: Do Not Tailgate"Here's the deal. Figure one car length for every ten miles an hour," Barndt said. "So if you're doing 55 miles an hour you should have six car lengths between you so that if something happens to the car in front of you, you have time to stop or react."