USA is part of North America with main city at Washington, D.C.. It's usually -5.66 °C in USA with a rainfall of 47.95 mm. Tipping is expected in United States since staff depend on tips to supplement their often minimum wages. Internet speed in United States is on average 14.2 Mbps. In United States you drive on the right side. Its Developed country with a population of 324M people. The main currency is US Dollar. The languages spoken are English. Automatic teller machines (local name: ATM) are everywhere in United States. Get other useful information like socket plugs, SIM cards and emergency numbers.