Convert Dekameter (dam) to Fathom (US Survey) (fath (US)) instantly.
About these units
Dekameter (dam)
A dekameter (sometimes spelled "decameter"), equal to ten meters, is another unit in the metric system that is infrequently used in everyday life. Its primary applications arise in surveying, topographic mapping, and environmental science. When measuring the heights of waves, depth increments in lakes, or widths of natural features like river channels, the dekameter provides a convenient scale—large enough to avoid cumbersome numbers yet small enough to maintain meaningful detail. While modern GPS and digital mapping tools often use meters directly, the dekameter persists in specialty fields that value standardized interval measurements. For example, contour intervals on geographic maps may be expressed in dekameters for uniformity. The unit's relative obscurity reflects the public's preference for units with intuitive relevance (like meters and kilometers), but its presence is nonetheless important in systematic metric progression.
Fathom (US Survey) (fath (US))
The US Survey Fathom is defined as 6 US Survey Feet (~1.8288 meters), identical in proportion to the traditional fathom but scaled to the US Survey Foot. Maritime surveys, early river navigation, and hydrographic measurements relied on this unit for determining depths and plotting charts. In terrestrial applications, the fathom occasionally served as a practical measure for large structures or obstacles. Although less relevant in contemporary usage, understanding the US survey fathom is crucial for interpreting historical navigation data, nautical charts, and engineering projects using older measurement systems.