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ounce (troy)
Symbol:  oz (troy) 
Category:  Mass 
SI Equivalent:  3.11035×10-2 kg
Dimension:  M 
System:  UK, US 
 
Notes
This unit was used for weighing precious metals, precious stones and gems.
1 oz (troy)= 1/12 lb (troy)
 = 20 pennyweights (troy)
 = 480 grains (troy)
Convert     oz (troy)  
1 oz (troy) =
Mass
  Symbol Unit Name
3.41444×1028  m0, me  a.u. of mass (electron rest mass) 
1.06639    assay ton 
1.87309×1025  u, uma, Da(12C), AMU  atomic unit of mass (12C) 
1.87369×1025  u, uma, Da(16O), AMU  atomic unit of mass (16O) 
1.85855×1025  u, uma, Da(1H), AMU  atomic unit of mass (1H) 
3.11035×1019  ag  attogram 
1.8733×1022    avogram 
7.29483×10-4    bag (UK, cement) 
155.517  ct.  carat (metric) 
151.579  ct (troy)  carat (troy) 
6.85714×10-4  cH, cwt  cental 
3110.35  cg  centigram 
1.87309×1025  u, uma, Da  dalton (atomic unit of mass) 
3.11035  dag  decagram 
311.035  dg  decigram 
8  dr (troy)  dram (troy) 
8  dr (ap.), dr (apoth.)  dram or drachm (apothecary) 
17.5543  dr (av.), dr (avdp)  dram or drachm (avoirdupois) 
3.41444×1028  m0, me  electron rest mass (a.u. of mass) 
3.11035×10-17  Eg  exagram 
3.11035×1016  fg  femtogram 
3.11035×107  g  gamma (mass) 
2.13127×10-3  slug  geepound (slug) 
3.11035×10-8  Gg  gigagram 
480  gr (apoth.), gr (ap.)  grain (apothecary) 
480  gr (avdp.), gr (av.)  grain (avoirdupois) 
480  gr (troy)  grain (troy) 
31.1035  g  gram 
0.311035  hg  hectogram 
6.12245×10-4  cH, cwt, lg cwt  hundredweight (gross or long) 
6.85714×10-4  sh. cwt  hundredweight (net or short) 
6.12245×10-4  cwt (av.)  hundredweight (UK, avoirdupois) 
3.17167×10-3  Hyl, hyl  hyl 
3.11035×10-2  kg  kilogram 
6.85714×10-5  kip  kilopound (kip) 
5.29101×10-5    load (UK) 
3.26531×10-5    load (UK, wool) 
3.06122×10-5  lg ton (UK)  long ton (UK) 
3.11035×10-5  Mg  megagram 
3.17167×10-3  mug  metric slug (hyl) 
3.11035×107  µg  microgram 
3.11035×104  mg  milligram 
3.17167×10-3    MKpS unit of mass 
3.17167×10-3  mug  mug (hyl, metric clug, par, TME) 
3.11035×1010  ng  nanogram 
1  oz (apoth.), oz (ap.)  ounce (apothecary) 
1.09714  oz (advp.), oz (av.)  ounce (avoirdupois) 
3.17167×10-3  par  par (hyl, mug, metric slug) 
20  dwt (troy)  pennyweight (troy) 
3.11035×10-14  Pg  petagram 
3.11035×1013  pg  picogram 
6.85714×10-2  lb  pound 
6.85714×10-2  lb (av.)  pound (avoirdupois) 
8.33333×10-2  lb (troy), lb (tr.)  pound (troy) 
0.114286  lb (UK, new hay)  pound (UK, new hay) 
0.106667  lb (UK, obsolete hay)  pound (UK, obsolete hay) 
6.85714×10-2  lb (UK, straw)  pound (UK, straw) 
6.85714×10-2  lb (US)  pound (US) 
2.44898×10-3    quarter (UK, mass) 
1.22449×10-4    quarter (US, long) 
1.37143×10-4    quarter (US, short) 
3.11035×10-4  q  quintal (metric) 
6.85714×10-4  quint. (US, UK)  quintal (US, UK) 
1.95918×10-4    sack (UK, weight) 
24  s, scr (ap.)  scruple (UK, US, apoth.) 
3.42857×10-5  sh. Ton  short ton (US, ton) 
2.13127×10-3    slug (geepound) 
4.89796×10-3  st (UK)  stone (UK) 
5.48571×10-3  st (UK, wool)  stone (UK, wool) 
3.11035×10-11  Tg  teragram 
3.11035×10-5    ton (metric) 
3.06122×10-5  UK ton, lg ton  ton (UK, long) 
3.42857×10-5    ton (US, short) 
3.11035×10-5  t  tonne (metric) 
1.90476×10-3    truss 
3.11035×1025  yg  yoctogram 
3.11035×10-23  Yg  yottagram 
3.11035×1022  zg  zeptogram 
3.11035×10-20  Zg  zettagram 
Glossary
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STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

more publications