Accident Reconstruction Calculators

Below are some basic accident reconstruction tools. They should be used to estimate ranges of answers for common reconstruction calculations. Most problems involves more complicated factors so make sure to consult an Automotive Engineer. 

Distance Traveled at Speed

This equation is used to estimate the location of a vehicle at various points in time, if the vehicle’s speed is known. It can be used to identify where a car was 1 second, 2 seconds, 3 seconds, 4 seconds and 5 seconds before arriving at a location, or after leaving a location. 

Explanation: 


Distance = Speed x Time


And with a Conversion Factor: 


D = (1.467 x S x T)


Where: 


D = Distance traveled (feet) 
1.467 = Conversion factor (converts mph to fps) 
S = Speed (mph) 
T= Time (in intervals of 1 second)

Example Calculation: 


Vehicle 1 was traveling at 55mph when it collided with stationary vehicle 2. How far was vehicle 1 at one through five seconds before the collision? 


@ 1 Sec.: D = (1.467 x 55 x 1) = 81 feet


@ 2 Sec.: D = (1.467 x 55 x 2) = 161 feet


@ 3 Sec.: D = (1.467 x 55 x 3) = 242 feet


@ 4 Sec.: D = (1.467 x 55 x 4) = 323 feet


@ 5 Sec.: D = (1.467 x 55 x 5) = 403 feet