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'''This is page provides a series rundown of articles on the "physics and astronomy" of the universe of Wurm Online, trying world. Below are sections individually designated to describe the structure, dynamics and “laws various elements of nature” of our in-game worldthese physics.''' 

The most basic unit of standard measurement designated to measuring distance in Wurm is defined by the size of a “tile”. Tiles are the equally sized squares that the landscape of Wurm Online is entirely composed of. In the 3D world of Wurm a tile can be either flat or inclined, so that one or more of its corners can be higher or lower than the others.

In all our calculations we used the following fundamental informationcases, given despite slope, a tile represents what in the Wurmpedia (http://www.wurmpedia.com/index.php/Tile):  '''“A tile is real-life would be a 4 meter by 4 meter square”square.''' In-gameSubsequently, 1km = '''''approx.''''' 250 tilesthen equals what would be, in real-life, 1 kilometer.

How Exact linear distance can we measure distances and heights in Wurm? Originally we tried to use easily be gleaned by using a [[spyglass]], because it displays as this tool will display the exact distance between the observer user and an any distant object pointed to by the targeted within its viewing crosshairs. See picture for example:

Using a spyglass is sufficient to verify the basic unit of measurement (1 tile = 4m x 4m) and to measure linear distances within a reasonable accuracy. However, when it comes to measuring heights it turned out that a and slopes, the spyglass is not quite accurate enough to always yield reliable results. Thus we need to use a more precise methodTriangulation is thus recommended in such situations: triangulation! This method uses basic trigonometric functions to determine the height of an object.

To use triangulation to determine the height (H ) of an object, you must first define a reference point. To do so, take a screenshot (as shown in the example) and measure the angle (α ) between the ground and the top of the object, as seen from the reference point. (As we have no means to measure angles in-game, we need to use a graphics program to determine the angle on the screenshot.) Additionally you need to measure the horizontal distance, which you obtain by counting the number of tiles T (remember: one tile corresponds to a distance of 4 meters). You then get the height H by using this formula:

Finally, talking about measuring heights, we must look at another basic unit of measurement used in the Wurm universeworld: “dirts”. Whenever we see sloped tiles defining the 3D landscape , the elevation of slopes is given in terms of the amount of “dirts dropped”" dropped. When terraforming the land you use a shovel to dig or drop dirt - you add or subtract one “unit of dirt” with each action of the shovel.

Using the method of triangulation described above , we can find out how these “units of dirt” correspond to metric units. By dropping dirt , we make elevated platforms of various heights, thus creating different slopes. We then position an observer in a pit, so that the eye level is slightly above the ground, and take screenshots:

Using this method , it is also possible to determine the height of a player character with sufficient accuracy: