Search a place, switch between street and topographic map views, and click the map to inspect elevation.
Search a place to center the map there, then click anywhere on the map to sample the elevation at that point. Reset View returns to the default view if you've panned or zoomed far away. Switch between the street and topographic layers to make terrain features easier to read.
Each click looks up the elevation at that exact point, so nearby clicks can return noticeably different values in hilly or steep terrain, while flatter areas will show only small differences over the same distance. Elevation data has a margin of error and shouldn't be used for engineering or construction purposes — treat it as a general terrain reference.
Switching to the topographic view adds contour lines, and the spacing between them is the fastest way to judge terrain without clicking around point by point. Lines packed tightly together mean elevation is changing quickly over a short distance — steep terrain. Lines spread far apart mean the land is comparatively flat. This is a standard map-reading convention that applies to any topographic map, not something specific to this page, so it's a useful skill to carry over to other terrain maps too.
Meters above sea level.
That's expected in areas with steep or uneven terrain — elevation can change quickly over short distances. In flat regions like most of the Netherlands, nearby points will usually be very close in value.
No, treat the values as an approximate reference. For anything requiring precision (construction, flood planning, land surveying) use official survey data instead.
Look at the contour lines: where they run close together, elevation is changing quickly over a short distance, meaning steep terrain. Where they're spaced far apart, the land is comparatively flat. This is standard topographic map convention, so it works the same way anywhere the layer is used, not just on this page.