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dalton (atomic unit of mass)
 Symbol: u, uma, Da Category: Mass SI Equivalent: 1.66054×10-27 kg Dimension: M Notes Named after J. Dalton (1766-1844), one dalton is equal to 1/12 of the mass of the carbon 12 atom.
Convert     u, uma, Da
1 u, uma, Da =
 Mass Symbol Unit Name 1822.89 m0, me a.u. of mass (electron rest mass) 5.69322×10-26 assay ton 1 u, uma, Da(12C), AMU atomic unit of mass (12C) 1.00032 u, uma, Da(16O), AMU atomic unit of mass (16O) 0.992238 u, uma, Da(1H), AMU atomic unit of mass (1H) 1.66054×10-6 ag attogram 1.00011×10-3 avogram 3.89453×10-29 bag (UK, cement) 8.3027×10-24 ct. carat (metric) 8.09242×10-24 ct (troy) carat (troy) 3.66087×10-29 cH, cwt cental 1.66054×10-22 cg centigram 1.66054×10-25 dag decagram 1.66054×10-23 dg decigram 4.27101×10-25 dr (troy) dram (troy) 4.27101×10-25 dr (ap.), dr (apoth.) dram or drachm (apothecary) 9.37179×10-25 dr (av.), dr (avdp) dram or drachm (avoirdupois) 1822.89 m0, me electron rest mass (a.u. of mass) 1.66054×10-42 Eg exagram 1.66054×10-9 fg femtogram 1.66054×10-18 g gamma (mass) 1.13783×10-28 slug geepound (slug) 1.66054×10-33 Gg gigagram 2.56261×10-23 gr (apoth.), gr (ap.) grain (apothecary) 2.56261×10-23 gr (avdp.), gr (av.) grain (avoirdupois) 2.56261×10-23 gr (troy) grain (troy) 1.66054×10-24 g gram 1.66054×10-26 hg hectogram 3.26863×10-29 cH, cwt, lg cwt hundredweight (gross or long) 3.66087×10-29 sh. cwt hundredweight (net or short) 3.26863×10-29 cwt (av.) hundredweight (UK, avoirdupois) 1.69328×10-28 Hyl, hyl hyl 1.66054×10-27 kg kilogram 3.66087×10-30 kip kilopound (kip) 2.82474×10-30 load (UK) 1.74327×10-30 load (UK, wool) 1.63431×10-30 lg ton (UK) long ton (UK) 1.66054×10-30 Mg megagram 1.69328×10-28 mug metric slug (hyl) 1.66054×10-18 µg microgram 1.66054×10-21 mg milligram 1.69328×10-28 MKpS unit of mass 1.69328×10-28 mug mug (hyl, metric clug, par, TME) 1.66054×10-15 ng nanogram 5.33876×10-26 oz (apoth.), oz (ap.) ounce (apothecary) 5.85739×10-26 oz (advp.), oz (av.) ounce (avoirdupois) 5.33876×10-26 oz (troy) ounce (troy) 1.69328×10-28 par par (hyl, mug, metric slug) 1.06775×10-24 dwt (troy) pennyweight (troy) 1.66054×10-39 Pg petagram 1.66054×10-12 pg picogram 3.66087×10-27 lb pound 3.66087×10-27 lb (av.) pound (avoirdupois) 4.44896×10-27 lb (troy), lb (tr.) pound (troy) 6.10145×10-27 lb (UK, new hay) pound (UK, new hay) 5.69468×10-27 lb (UK, obsolete hay) pound (UK, obsolete hay) 3.66087×10-27 lb (UK, straw) pound (UK, straw) 3.66087×10-27 lb (US) pound (US) 1.30745×10-28 quarter (UK, mass) 6.53725×10-30 quarter (US, long) 7.32173×10-30 quarter (US, short) 1.66054×10-29 q quintal (metric) 3.66087×10-29 quint. (US, UK) quintal (US, UK) 1.04596×10-29 sack (UK, weight) 1.2813×10-24 s, scr (ap.) scruple (UK, US, apoth.) 1.83043×10-30 sh. Ton short ton (US, ton) 1.13783×10-28 slug (geepound) 2.6149×10-28 st (UK) stone (UK) 2.92869×10-28 st (UK, wool) stone (UK, wool) 1.66054×10-36 Tg teragram 1.66054×10-30 ton (metric) 1.63431×10-30 UK ton, lg ton ton (UK, long) 1.83043×10-30 ton (US, short) 1.66054×10-30 t tonne (metric) 1.01691×10-28 truss 1.66054 yg yoctogram 1.66054×10-48 Yg yottagram 1.66054×10-3 zg zeptogram 1.66054×10-45 Zg zettagram