Yes, in the United Kingdom, speed limits are typically expressed in miles per hour (mph). The speed limit signs on roads and highways in the UK indicate the maximum speed at which vehicles are allowed to travel in miles per hour. For example, you might see signs displaying limits such as "30 mph" in built-up areas, "60 mph" on single-carriageway roads, or "70 mph" on dual carriageways and motorways. The use of miles per hour is the standard unit of measurement for speed limits in the UK.