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  2. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. According to Schadow and McDonald, [1] metric units, in general, are those units "defined 'in the spirit' of the metric system, that emerged in late 18th century France and was rapidly adopted by scientists and engineers.

  3. Gram - Wikipedia

    en.wikipedia.org/wiki/Gram

    The gram (originally gramme; [1] SI unit symbol g) is a unit of mass in the International System of Units (SI) equal to one thousandth of a kilogram.. Originally defined in 1795 as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre [1 cm 3], and at the temperature of melting ice", [2] the defining temperature (≈0 °C) was later changed to 4 °C ...

  4. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    ~8 × 10 −3 kg Coins of one euro (7.5 grams), [63] one U.S. dollar (8.1 grams) [64] and one Canadian loonie (7 grams [pre-2012], 6.27 grams [2012-]) [65] 10 −2 decagram (dag) 1.2 × 10 −2 kg Mass of one mole (6.02214 × 10 23 atoms) of carbon-12 (12 grams) 1.37 × 10 −2 kg Amount of ethanol defined as one standard drink in the U.S. (13. ...

  5. TNT equivalent - Wikipedia

    en.wikipedia.org/wiki/TNT_equivalent

    The complete conversion of 1 kg of matter into pure energy would yield the theoretical maximum (E = mc 2) of 89.8 petajoules, which is equivalent to 21.5 megatons of TNT. No such method of total conversion as combining 500 grams of matter with 500 grams of antimatter has yet been achieved.

  6. Units of textile measurement - Wikipedia

    en.wikipedia.org/wiki/Units_of_textile_measurement

    The fabric weight is measured in grams. In the metric system, the mass per unit area of all types of textiles is expressed in grams per square metre (g/m 2). The gram (alternative spelling: gramme; SI unit symbol: g) is a metric system unit of mass. A gram is defined as one thousandth of the SI base unit, the kilogram, or 1 × 10 −3 kg.

  7. Gravitational metric system - Wikipedia

    en.wikipedia.org/wiki/Gravitational_metric_system

    The unit, long obsolete, [5] has also been used as the unit of mass in a metre–gram-force–second (mgfs) system. [6] 1 TME = 1 kp / 1 m/s 2 = 1 kp⋅s 2 /m = 9.806 65 kg 1 hyl = 1 kp⋅s 2 /m = 9.806 65 kg or 1 hyl (alternate definition – mgfs) = 1 p⋅s 2 /m = 9.806 65 g

  8. Quintal - Wikipedia

    en.wikipedia.org/wiki/Quintal

    In France it used to be defined as 100 livres (pounds), about 48.95 kg (108 lb), and has been redefined as 100 kg (mesures usuelles), thus called metric quintal with symbol qq. In Spain , the quintal is still defined as 100 libras , or about 46 kg (101 lb), but the metric quintal is also defined as 100 kg; [ 3 ] In Portugal a quintal is 128 ...

  9. Yield (wine) - Wikipedia

    en.wikipedia.org/wiki/Yield_(wine)

    Representative figures for the amount of grapes needed for 100 L of wine are 160 kg for white wine, 130 kg for red wine, and 140 kg for a mixture of red and white wine. [1] Thus: [2] for white wine, 100 hl/ha ≈ 16,000 kg/ha (16 t/ha) = 6.5 tons per acre. 1 ton per acre = 2470 kg/ha ≈ 15 hl/ha