In the last couple of years, the use of wireless networks has become more and more popular. A MANET is a collection of self-organizing mobile nodes which is infrastructure less, autonomous, and standalone networks. Each node in a MANET is free to move independently in any direction and will therefore change its links to other devices frequently. Each must forward traffic unrelated to its own use and therefore be a router. Simulation result has been obtained by a performance comparison of three routing protocols i.e. Ad hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) and Location Aided Routing (LAR1) against simulation time.