A measuring wheel is a hand-held device used for measuring distances, typically on a flat surface such as a road or pavement. The device consists of a wheel, typically with a diameter of between 1 and 3 feet, mounted on a handle. The wheel is connected to a counter mechanism that records the number of revolutions made by the wheel as it is rolled along the ground.
The measuring wheel is commonly used in a variety of applications, including construction, engineering, surveying, and landscaping. It is especially useful for measuring long distances quickly and accurately, where traditional measuring methods such as tape measures or rulers would be impractical or time-consuming. Measuring wheels are also useful for measuring curved or irregular surfaces, where other measuring tools may not be suitable.