Slug
About 14.594 kg. The US engineering unit of mass: the mass that accelerates at 1 ft/s² under a force of 1 pound-force.
1 slug = 14.59390294 kilograms (approximately).
About the slug
Physics teachers in feet-and-pounds countries face an awkward fact: the pound is used both as a unit of mass and as a unit of force. The slug removes the ambiguity. It is the mass that a force of one pound-force accelerates at one foot per second squared, so that one slug equals one lbf s squared per foot. The British physicist Arthur Mason Worthington is credited with coining the name before 1900, taking it in the sense of a block of metal rather than the mollusc. An older name for it was the geepound.
One slug is about 14.594 kg, which is roughly 32.17 avoirdupois pounds, and the figure used here follows standard gravity, the international foot and the avoirdupois pound. An object of one slug weighs about 143.1 newtons at the Earth's surface. The unit belongs to the gravitational foot-pound-second system and stayed mostly in American engineering while a 1928 textbook noted that no special name was really needed. Its inch-based cousin, 12 slugs, is jokingly called a blob or slinch.
Sources: Wikipedia: Slug (unit); NIST Guide to the SI, Appendix B.8: conversion factors
Slug conversion chart
1 slug expressed in every other weight & mass unit:
| Unit | 1 slug |
|---|---|
| Kilograms | 14.59390294 |
| Grams | 14,593.90294 |
| Metric Tons | 0.01459390294 |
| Pounds | 32.17404856 |
| Ounces | 514.7847769 |
| Milligrams | 14,593,902.94 |
| Micrograms | 14,593,902,937 |
| Carats | 72,969.51469 |
| Stone | 2.298146325 |
| Short Tons | 0.01608702428 |
| Long Tons | 0.01436341453 |
| Troy Ounces | 469.2048748 |
| Daltons | 8.788653763×10²⁷ |
| Earth Masses | 2.443639352×10⁻²⁴ |
| Solar Masses | 7.339262316×10⁻³⁰ |
| Quintals | 0.1459390294 |
| Grains | 225,218.3399 |
| Drams | 8,236.55643 |
| Hundredweight (US) | 0.3217404856 |
| Hundredweight (UK) | 0.2872682907 |
| Quarters (UK) | 1.149073163 |
| Troy Pounds | 39.10040623 |
| Pennyweights | 9,384.097496 |
| Scruples | 11,260.91699 |
| Apothecaries' Drams | 3,753.638998 |
| Roman Pounds | 44.37185448 |
| Roman Ounces | 532.6241948 |
| Attic Talents | 0.5571042502 |
| Attic Minas | 33.42625501 |
| Attic Drachmas | 3,342.625501 |
| Obols | 20,055.75301 |
| Shekels (biblical) | 1,269.035038 |
| Hebrew Talents | 0.5067327409 |
| Monme | 3,891.70745 |
| Kin | 24.32317156 |
| Kan | 3.89170745 |
| Qian (Chinese) | 2,918.780587 |
| Liang (Chinese) | 291.8780587 |
| Jin (Chinese) | 29.18780587 |
| Dan (Chinese) | 0.2918780587 |
| Catties (Hong Kong) | 24.13053642 |
| Taels (Hong Kong) | 386.0885827 |
| Tola | 1,251.212999 |
| Seers | 15.64016249 |
| Maunds | 0.3910040623 |
| Zolotniks | 3,421.137746 |
| Funts | 35.63685152 |
| Poods | 0.8909212879 |
| Libras (Castilian) | 31.7194631 |
| Arrobas (Spanish) | 1.268778524 |
| Arrobas (Brazilian) | 0.9729268625 |
More US customary units
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