Elevation Above Sea Level at Any Point on the Map

This tool shows the elevation above sea level at any point on the map, and does more than give a single number: in profile mode you mark a route with clicks and get an elevation chart, total ascent and descent, minimum and maximum, plus the maximum and average slope in both percent and degrees. Coordinates appear next to the height in decimal degrees and in degrees-minutes-seconds. Everything is computed in your browser, so route length and the number of points are unlimited.

How to use it

1
Find a point

In "Point" mode tap the map — the elevation in metres and feet appears along with the coordinates. "Near me" moves the map to your position.

2
Draw a route

Switch to "Route profile" and mark points with clicks. After the second point the chart and the statistics appear.

3
Read the slope

Maximum slope is the steepest stretch of the route; average slope is the total drop divided by the length. Both are given in percent and degrees.

4
Start over

The "Clear" button removes the line and the statistics without moving the map.

Build an elevation profile along a route and compute the slope

Elevation at the point

—
Latitude—
Longitude—

What this number is. It is the elevation of the TERRAIN from a model with roughly 30-metre spacing: buildings, bridges, embankments and trees are not included, and the vertical error is usually a few metres, growing in the mountains. Good enough for hiking, construction and reading the landscape — not for surveying.

Terrain from Terrarium tiles (AWS Open Data, public domain) based on SRTM and national surveys. The elevation is read straight from a tile pixel in your browser, so the number of points in a profile is unlimited.

What makes it different

An elevation profile along a route rather than a single point: ascent, descent, minimum and maximum across the whole line
Slope in percent and in degrees at once — road engineers use percent, everyone else asks "how many degrees"
Coordinates in two formats next to the elevation: decimal degrees and degrees-minutes-seconds
GPS altitude is shown on its own line and labelled as such — it is measured from the ellipsoid and is usually coarser than the terrain model
It states plainly that the figure refers to the TERRAIN: buildings, bridges and trees are not part of the model
The computation runs in your browser from terrain tiles, so there is no queue and no cap on the number of points

Frequently asked questions

How do I find the elevation of my town?

Press "Near me" or simply click the point you want on the map. The elevation appears in metres and feet, with the coordinates of that point in two formats next to it.

How accurate is this elevation?

The terrain model has roughly 30-metre horizontal spacing, and the vertical error is usually a few metres, increasing in mountains and on steep slopes. That is enough for hiking, cycling, construction and general orientation. Surveying work needs a survey, not a global model.

Why does GPS altitude differ from yours?

They are two different quantities. GPS reports height above a mathematical ellipsoid rather than above sea level, and the difference between the two reaches tens of metres depending on location. On top of that, a phone’s vertical accuracy is usually worse than its horizontal accuracy. That is why we show both values separately and label which is which.

Does it include the height of the building I am in?

No. The model describes the surface of the ground, not the structures on it. On the ninth floor the tool still reports the height of the ground beneath the building. The same applies to bridges, flyovers and tall trees.

What does slope in percent mean?

A 10 % slope means rising 10 metres vertically for every 100 metres horizontally, which is about 5.7 degrees. Percent is standard in road engineering and cycling, degrees are more intuitive in everyday use, so we show both.

How many points can a route have?

There is no limit. The profile is computed in the browser: terrain tiles are downloaded once and cached, and the route between marked points is divided into equal segments so the chart stays smooth.

Does it work everywhere?

The data covers almost all land. In polar regions, over the ocean and in a few unsurveyed places elevation may be missing — the tool then says "no data" honestly instead of substituting zero.

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Who is this tool for?
🏃 Sports & Athletics ✈️ Travelers & Tourists
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