The first factor that affects the data usage of Google Maps is the quality of the map. Google Maps offers three map types for viewing: default, satellite, and terrain. The default map type shows the roads, buildings, and landmarks in a simple and clear way.

The satellite map type shows the aerial view of the area, with more details and colors. The terrain map type shows the physical features of the land, such as hills, mountains, and rivers. The higher the quality, the more data it consumes. 

According to WhistleOut, the Google Maps app uses anywhere from 0.67 MB up to 1.55 MB of data for a 10-mile trip, depending on the map type. Here are the data rates for each map type:

• Default: 0.67 MB per 10 miles
• Satellite: 1.33 MB per 10 miles
• Terrain: 1.55 MB per 10 miles

You can change the map type in the Google Maps app by tapping on the layers icon on the top right corner and selecting the map type you want. The default setting is “Default”, which means Google Maps will show the simplest and most efficient map type.

If you want to save data, you can choose the default map type or avoid switching between map types. If you want to see more details or features, you can choose the satellite or terrain map type, but be aware that it will use more data.