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carat (metric)
 Symbol: ct. Category: Mass SI Equivalent: 2×10-4 kg Dimension: M System: INT Notes Metric unit of mass employed in the jewelry industry for weighing precious metals and precious stones. Carat is derived from the Sanskrit word 'quirrat', the seeds of the carob tree which were used to weigh precious metals due to their small sizes and uniformity in weight. 1 carat (metric) = 200 mg
Convert     ct.
1 ct. =
 Mass Symbol Unit Name 2.19554×1026 m0, me a.u. of mass (electron rest mass) 6.85706×10-3 assay ton 1.20443×1023 u, uma, Da(12C), AMU atomic unit of mass (12C) 1.20481×1023 u, uma, Da(16O), AMU atomic unit of mass (16O) 1.19508×1023 u, uma, Da(1H), AMU atomic unit of mass (1H) 2×1017 ag attogram 1.20456×1020 avogram 4.69069×10-6 bag (UK, cement) 0.974673 ct (troy) carat (troy) 4.40925×10-6 cH, cwt cental 20 cg centigram 1.20443×1023 u, uma, Da dalton (atomic unit of mass) 2×10-2 dag decagram 2 dg decigram 5.14412×10-2 dr (troy) dram (troy) 5.14412×10-2 dr (ap.), dr (apoth.) dram or drachm (apothecary) 0.112877 dr (av.), dr (avdp) dram or drachm (avoirdupois) 2.19554×1026 m0, me electron rest mass (a.u. of mass) 2×10-19 Eg exagram 2×1014 fg femtogram 2×105 g gamma (mass) 1.37044×10-5 slug geepound (slug) 2×10-10 Gg gigagram 3.08647 gr (apoth.), gr (ap.) grain (apothecary) 3.08647 gr (avdp.), gr (av.) grain (avoirdupois) 3.08647 gr (troy) grain (troy) 0.2 g gram 2×10-3 hg hectogram 3.93683×10-6 cH, cwt, lg cwt hundredweight (gross or long) 4.40925×10-6 sh. cwt hundredweight (net or short) 3.93683×10-6 cwt (av.) hundredweight (UK, avoirdupois) 2.03943×10-5 Hyl, hyl hyl 2×10-4 kg kilogram 4.40925×10-7 kip kilopound (kip) 3.4022×10-7 load (UK) 2.09964×10-7 load (UK, wool) 1.96841×10-7 lg ton (UK) long ton (UK) 2×10-7 Mg megagram 2.03943×10-5 mug metric slug (hyl) 2×105 µg microgram 200 mg milligram 2.03943×10-5 MKpS unit of mass 2.03943×10-5 mug mug (hyl, metric clug, par, TME) 2×108 ng nanogram 6.43015×10-3 oz (apoth.), oz (ap.) ounce (apothecary) 7.05479×10-3 oz (advp.), oz (av.) ounce (avoirdupois) 6.43015×10-3 oz (troy) ounce (troy) 2.03943×10-5 par par (hyl, mug, metric slug) 0.128603 dwt (troy) pennyweight (troy) 2×10-16 Pg petagram 2×1011 pg picogram 4.40925×10-4 lb pound 4.40925×10-4 lb (av.) pound (avoirdupois) 5.35846×10-4 lb (troy), lb (tr.) pound (troy) 7.34874×10-4 lb (UK, new hay) pound (UK, new hay) 6.85883×10-4 lb (UK, obsolete hay) pound (UK, obsolete hay) 4.40925×10-4 lb (UK, straw) pound (UK, straw) 4.40925×10-4 lb (US) pound (US) 1.57473×10-5 quarter (UK, mass) 7.87365×10-7 quarter (US, long) 8.81849×10-7 quarter (US, short) 2×10-6 q quintal (metric) 4.40925×10-6 quint. (US, UK) quintal (US, UK) 1.25978×10-6 sack (UK, weight) 0.154324 s, scr (ap.) scruple (UK, US, apoth.) 2.20462×10-7 sh. Ton short ton (US, ton) 1.37044×10-5 slug (geepound) 3.14946×10-5 st (UK) stone (UK) 3.5274×10-5 st (UK, wool) stone (UK, wool) 2×10-13 Tg teragram 2×10-7 ton (metric) 1.96841×10-7 UK ton, lg ton ton (UK, long) 2.20462×10-7 ton (US, short) 2×10-7 t tonne (metric) 1.22479×10-5 truss 2×1023 yg yoctogram 2×10-25 Yg yottagram 2×1020 zg zeptogram 2×10-22 Zg zettagram
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