Understanding Slugs to Troy Ounces Conversion
The slug is the British gravitational unit of mass, about 14.5939 kg, from imperial dynamics. The troy ounce is the standard unit for weighing precious metals such as gold, silver, and platinum, equal to about 31.1035 grams. Converting slugs to troy ounces is an unusual but valid bridge between an engineering mass unit and the bullion-trade weighing system.
Conversion Formula
To convert Slugs to Troy Ounces, multiply by this factor:
Step-by-Step Example
Convert 25 Slugs to Troy Ounces.
How to Convert Slugs to Troy Ounces
Convert a slug mass into troy ounces with one multiplication.
- Start with slugs: For example, 25 slugs.
- Multiply by 469.2049: This is the number of troy ounces in one slug.
- Calculate the product: .
- State the result: 25 slugs equals about 11,730.1 troy ounces.
Slugs to Troy Ounces conversion table
| Slugs (slug) | Troy Ounces (ozt) |
|---|---|
| 0 | 0 |
| 1 | 469.2049 |
| 2 | 938.4097 |
| 3 | 1407.615 |
| 4 | 1876.819 |
| 5 | 2346.024 |
| 6 | 2815.229 |
| 7 | 3284.434 |
| 8 | 3753.639 |
| 9 | 4222.844 |
| 10 | 4692.049 |
| 15 | 7038.073 |
| 20 | 9384.097 |
| 25 | 11730.12 |
| 30 | 14076.15 |
| 40 | 18768.19 |
| 50 | 23460.24 |
| 60 | 28152.29 |
| 70 | 32844.34 |
| 80 | 37536.39 |
| 90 | 42228.44 |
| 100 | 46920.49 |
| 150 | 70380.73 |
| 200 | 93840.97 |
| 250 | 117301.2 |
| 300 | 140761.5 |
| 400 | 187681.9 |
| 500 | 234602.4 |
| 600 | 281522.9 |
| 700 | 328443.4 |
| 800 | 375363.9 |
| 900 | 422284.4 |
| 1000 | 469204.9 |
| 2000 | 938409.7 |
| 3000 | 1407615 |
| 4000 | 1876819 |
| 5000 | 2346024 |
| 10000 | 4692049 |
| 25000 | 11730120 |
| 50000 | 23460240 |
| 100000 | 46920490 |
| 250000 | 117301200 |
| 500000 | 234602400 |
| 1000000 | 469204900 |
What is the Slug?
The slug is the unit of mass in the British Gravitational (foot–pound–second) system of units, used chiefly in engineering and physics involving imperial units.
Definition
The slug is the mass that accelerates at 1 foot per second squared when a force of one pound-force is applied:
It follows from , giving exactly 14.593902937206 kg. A one-slug mass therefore weighs about 32.174 pounds-force under standard gravity.
Origin and History
The slug was introduced in the early 20th century to give the imperial system a coherent mass unit consistent with Newton's second law, avoiding confusion between the pound as a unit of mass and the pound-force as a unit of force. The name was popularized by British physicist Arthur Mason Worthington.
Law and Notable Facts
The slug is not part of SI but remains in use in some U.S. and British engineering fields, especially aeronautics and ballistics. Its counterpart is the "slinch" (pound·s²/inch), which is exactly 12 times larger.
Real-World Examples and Conversions
An object weighing 32.174 lbf at standard gravity has a mass of exactly 1 slug (≈14.59 kg). A 160-pound person has a mass of roughly 4.97 slugs. One slug is close to the mass of a typical bowling-ball-and-a-half, about 14.6 kg.
What is the Troy Ounce?
The troy ounce is a unit of mass used almost exclusively for precious metals such as gold, silver, platinum, and palladium. It is the standard weight quoted on global bullion markets.
Definition
The troy ounce is defined as exactly 480 grains, which equals 31.1034768 grams:
By definition, 1 troy ounce = 480 grains = 31.1034768 g exactly, and 12 troy ounces make one troy pound (≈373.242 g). Note that the troy ounce is heavier than the more familiar avoirdupois ounce (≈28.3495 g).
Origin and History
The troy system takes its name from the French market town of Troyes, a major medieval trading hub. It descends from the Roman monetary system and was standardized in England for coinage and precious metals, later adopted across Europe and the English-speaking world.
Law and Notable Facts
The troy ounce remains the legal basis for bullion trading and coinage weights; in the United States it is codified for precious-metal transactions. A curious consequence is that a pound of gold (troy, ~373 g) actually weighs less than a pound of feathers (avoirdupois, ~454 g).
Real-World Examples and Conversions
A standard Good Delivery gold bar weighs about 400 troy ounces (≈12.4 kg). A 1 oz American Gold Eagle contains one troy ounce (31.1 g) of gold. When gold is quoted at "$2,000 per ounce," that means per troy ounce, not the avoirdupois ounce.
Frequently Asked Questions
How many troy ounces are in one slug?
One slug equals about 469.205 troy ounces, since a slug is roughly 14.5939 kg and a troy ounce is about 31.1035 g.
How do I convert slugs to troy ounces?
Multiply the slug value by 469.2049. For example, 2 slugs is about 938.410 troy ounces.
How many slugs are in one troy ounce?
About 0.00213127 slugs, the reciprocal of 469.2049.
How does a troy ounce differ from a regular ounce?
A troy ounce (about 31.10 g) is heavier than an avoirdupois ounce (about 28.35 g); troy weight is reserved for precious metals and gemstones.
When would this conversion be relevant?
It is niche, but it can express a large engineering-scale mass in the bullion-weighing units used by the precious-metals trade.
People also convert
Complete Slugs conversion table
| Unit | Result |
|---|---|
| Micrograms (mcg) | 14593900000 mcg |
| Milligrams (mg) | 14593900 mg |
| Grams (g) | 14593.9 g |
| Kilograms (kg) | 14.5939 kg |
| Metric Tonnes (mt) | 0.0145939 mt |
| Carats (ct) | 72969.51 ct |
| Ounces (oz) | 514.7848 oz |
| Pounds (lb) | 32.17405 lb |
| Stones (st) | 2.298146 st |
| Tons (t) | 0.01608702 t |
| Long Tons (long-ton) | 0.01436341 long-ton |
| Troy Ounces (ozt) | 469.2049 ozt |
| Grains (gr) | 225218.3 gr |
| US Hundredweights (cwt-us) | 0.3217405 cwt-us |
| UK Hundredweights (cwt-uk) | 0.2872683 cwt-uk |