Convert Millimeter (mm) to Aln (aln) instantly.
About these units
Millimeter (mm)
A millimeter is one-thousandth of a meter and is used extensively in fields that require fine control and precision. Engineers and machinists frequently rely on millimeters in technical drawings and machining specifications, since the unit supports very precise tolerances without resorting to decimals. In construction, millimeters provide clarity for component dimensions, door and window fittings, and joinery work. Millimeters are also critical in medical imaging (such as CT or MRI slice thickness), entomology, electronics, and automotive design. Many mechanical failures or malfunctions arise from deviations of only a few millimeters—highlighting the importance of precision. On a more everyday level, rainfall measurements and snow depth reports often use millimeters for accuracy.
Aln (aln)
The aln was a traditional Swedish unit of length equal to roughly 59.4 cm, though its exact value varied slightly by region and period. It belongs to the broader family of "ell" measurements used across Europe, originally based on the length of a human forearm. The aln played a crucial role in Swedish commerce, especially in the textile industry, where cloth was measured by stretching it along standardized rods or boards marked in aln lengths. Because such goods were often woven locally and traded regionally, the aln helped regulate and unify commercial practices before the adoption of the metric system. Although obsolete today, the aln survives in historical texts, architectural references, and Scandinavian museum records. Understanding the aln helps scholars interpret pre-modern construction records, land measurements, and traditional clothing industries, revealing a great deal about everyday life in early Sweden.