distancegauge

2. A display in a vehicle that shows the distance traveled.

The car's distance gauge showed we had driven two hundred miles.

3. A scale on a map used to measure real-world distances.

Use the distance gauge at the bottom of the map to figure out how far the towns are apart.

4. A device that estimates how far apart two points are, often using sound or light.

The engineer used a distance gauge to measure the gap between the bridge supports.