How fast can you legally drive on most highways?

The legal speed limit on most highways in the United States is typically around 70 mph, although this can vary by state and specific highway regulations. Many highways, especially in rural areas, set their speed limits at 70 mph to accommodate higher speeds while maintaining safety. This limit balances efficient travel with the need for safety on multi-lane roads commonly designed for faster-moving traffic.

While some states may have speed limits set at lower or higher thresholds, such as 60 mph or even 80 mph in certain regions, the 70 mph limit is prevalent and widely recognized as a standard for highway travel. Speed limits are established based on factors such as road conditions, traffic density, and accident statistics, aiming to promote safe driving standards while allowing for reasonable travel speeds.