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<a name="Units"></a>
<a name="Drawing Units"></a>
<a name="20_5"></a><h2>Drawing Units</h2>
<p>
LibreCAD supports various units for length and angles. Craftsmen from different
professions are used to different ways of displaying numbers. LibreCAD supports
the most commonly used formats for displaying lengths and angles and allows
you to adjust the precision as required.<br>
Please refer also to chapter <a href="drawingoptions.html">Drawing Options</a>
to learn how to change the unit of a drawing.
</p>
<a name="20_5_1"></a><h3>Supported Length Units</h3>
<p>
<b>Metric Units</b></p>
<p>
Angstrom (10 E-10m),<br>
Nanometers (10 E-09m),<br>
Microns (10 E-06m),<br>
Millimeters (0.001m), <br>
Centimeters (0.01m), <br>
Decimeters (0.1m), <br>
Meters (1m), <br>
Decameters (10m), <br>
Hectometers (100m), <br>
Kilometers (1000m), <br>
Gigameters (10 E06m)
</p>
<p>
<b>Imperial Units</b></p>
<p>
Microinches (1/1 000 000 Inch), <br>
Mil (1/1000 Inch), <br>
Inch, <br>
Feet (12 Inches), <br>
Yards (3 Feet), <br>
Mile (1 760 Yards)
</p>
<p>
<b>Other Length Units</b></p>
<p>
Astro (1.49600 * 10 E11 Meters),<br>
Lightyear (9.4605 * 10 E15 Meters),<br>
Parsec (3.0857 * 10 E16 Meters)
</p>
<a name="20_5_2"></a><h3>Display Formats for Lengths</h3>
<p>
<b>Formats for All Length</b></p>
<p>
Decimal (e.g. 3.5)<br>
Scientific (e.g. 3.5E+01)<br>
Fractional (e.g. 3 1/2)
</p>
<p>
<b>Additional Formats for Lengths in Inches</b></p>
<p>
Engineering (e.g. 2'-3.56")<br>
Architectural (e.g. 2'-3 5/64")
</p>
<a name="20_5_3"></a><h3>Supported Angle Units</h3>
<p>
Degrees (full circle = 360°)<br>
Radians (full circle = 2 π)<br>
Gradians (full circle = 400g)<br>
</p>
<a name="20_5_4"></a><h3>Display Formats for Angles</h3>
<p>
Decimal Degrees (e.g. 36.26°)<br>
Degrees / Minutes / Seconds (e.g. 36°15'24")<br>
Radians (e.g. 0.785r)<br>
Gradians (e.g. 100g)<br>
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