By car: Burj Khalifa is located in The Dubai Mall and is easily accessible by car. You can easily park your car in the Dubai Mall parking garage.
By public transport: The mall is easily accessible by public transport. If you're taking the metro, you can get off at the Dubai Mall/Burj Khalifa station and walk to the mall via an air-conditioned footbridge. Once you arrive at The Dubai Mall, you'll need to walk across the mall to the lower ground floor (also referred to as the LG).
By Taxi: You can also take a taxi to the mall from anywhere in Dubai. It's a popular destination, and most taxi drivers will be familiar with the location.