# Hectograms to Slugs (hg to slug) Source: https://www.unitconvertercalculator.com/weight/hectograms-to-slugs/ **1 hg = 0.0068521765561961 slug** One hectogram equals approximately 0.006852 slugs. The slug is a unit of mass in the Imperial engineering system, defined as the mass that is accelerated by 1 foot per second squared when a force of one pound-force is applied. One slug weighs about 14.594 kilograms or 32.174 pounds under standard gravity. ## Formula Apply the conversion factor ## Conversion Table | Hectograms (hg) | Slugs (slug) | |---|---| | 0.5 hg | 0.0034260882780981 slug | | 1 hg | 0.0068521765561961 slug | | 2 hg | 0.013704353112392 slug | | 5 hg | 0.034260882780981 slug | | 10 hg | 0.068521765561961 slug | | 25 hg | 0.1713044139049 slug | | 50 hg | 0.34260882780981 slug | | 100 hg | 0.68521765561961 slug | | 250 hg | 1.713044139049 slug | | 500 hg | 3.4260882780981 slug | | 1000 hg | 6.8521765561961 slug | | 5000 hg | 34.260882780981 slug | | 10000 hg | 68.521765561961 slug | ## Units ### Hectogram (hg) A hectogram is 100 grams or one tenth of a kilogram. Used in Italy (as 'etto') for buying food at markets and delicatessens. ### Slug (slug) A slug is a unit of mass in the imperial system used in physics and engineering. It equals approximately 14.593903 kilograms, derived from the pound-force, standard gravity, and the foot. ## Background The slug appears almost exclusively in American engineering textbooks and physics courses that use the foot-pound-second (FPS) system. Aerospace engineers, mechanical engineering students, and structural analysts encounter slugs when working with Newton's second law in Imperial units. Outside of academic and specialized engineering contexts, the slug is virtually unknown. ## Good to Know The slug was introduced in the early 20th century by British physicist Arthur Mason Worthington to solve the awkward mismatch between force and mass in the foot-pound-second system. Before the slug, engineers had to juggle confusing conversion factors in every dynamics problem. Despite its utility in FPS calculations, the slug never gained cultural traction - it remains the least famous unit in its own system, known only to those who have suffered through its textbook problems. ## FAQ ### How many hectograms are in one slug? One slug contains approximately 145.94 hectograms (about 14.594 kilograms). The slug is defined as one pound-force second squared per foot, which works out to this mass under standard Earth gravity of 9.80665 m/s squared. ### Why was the slug created? The slug was created to make Newton's second law (F = ma) work cleanly in the foot-pound-second system. Without the slug, engineers using Imperial units would need a constant correction factor in every force calculation. The slug eliminates that factor by being defined as the mass unit that makes 1 pound-force = 1 slug times 1 ft/s squared. ### Do any countries officially use the slug? No country officially defines the slug as a standard unit. It exists as a derived unit in the Imperial engineering system used primarily in American engineering education. Even in the US, most professional engineering work has transitioned to SI units (kilograms, newtons, meters), making the slug increasingly a classroom relic. ## Non-Frequently Asked Questions ### Is the engineering slug related to the garden slug? Only in that both are slow to gain acceptance. The engineering slug was named with deliberate irony - a 'slug' of mass is heavy and inert, like the garden variety. At about 14.6 kilograms, one slug is roughly the weight of 3,000 actual garden slugs, which is more garden slugs than anyone should ever contemplate. ### If I tell someone I weigh 5 slugs, will they think I am an engineer or just strange? They will think you are strange, and they will be correct. Five slugs is about 73 kilograms or 161 pounds - a perfectly normal weight expressed in a perfectly abnormal unit. Even most engineers would need to pause and calculate before understanding what you mean, which defeats the purpose of communication. ### Has the slug ever appeared outside of a textbook? Barely. NASA used slugs in some early spacecraft calculations, and a few American bridge engineering manuals reference them. But the slug's natural habitat is the end-of-chapter problem set in a sophomore physics course, where it confuses students into either switching to metric or dropping engineering altogether. ## Related Articles - [Why We Measure: The Deepest Urge in Human Civilisation](https://www.unitconvertercalculator.com/blog/why-we-measure) - [The Map Is Not the Territory: Why Every Measurement Is Wrong](https://www.unitconvertercalculator.com/blog/the-map-is-not-the-territory) - [Zero: The Most Dangerous Number in Measurement](https://www.unitconvertercalculator.com/blog/zero-the-most-dangerous-number-in-measurement) - [The Kilogram Problem: The Object That Was Its Own Definition](https://www.unitconvertercalculator.com/blog/the-kilogram-problem) - [The Body as a Ruler: Every Measurement Unit That Came From Us](https://www.unitconvertercalculator.com/blog/the-body-as-a-ruler) - [Why Your Recipe Is Lying to You: The Chaos of Cooking Measurements](https://www.unitconvertercalculator.com/blog/why-recipe-measurements-are-unreliable) - [15 Obscure Measurement Units You've Never Heard Of (But Still Need)](https://www.unitconvertercalculator.com/blog/obscure-measurement-units-guide) - [When Measurements Go Wrong - Disasters, Blunders and Happy Accidents](https://www.unitconvertercalculator.com/blog/when-measurements-go-wrong) - [The Surprising Stories Behind Everyday Units of Measurement](https://www.unitconvertercalculator.com/blog/stories-behind-measurement-units) - [Metric vs. Imperial - The Complete Guide to the World's Two Measurement Systems](https://www.unitconvertercalculator.com/blog/metric-vs-imperial-complete-guide) - [Understanding Weight Units - Kilograms, Pounds, Stones & Ounces](https://www.unitconvertercalculator.com/blog/understanding-weight-units) - [Complete Baking Measurement Guide - Cups, Grams, Ounces](https://www.unitconvertercalculator.com/blog/baking-measurement-guide) ## See Also - [Slugs to Hectograms](https://www.unitconvertercalculator.com/weight/slugs-to-hectograms/)