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1 Kilograms

= 2.2046244201838 Pounds

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In physics, mass is a property of a physical body. It is the measure of an object's resistance to acceleration (a change in its state of motion) when a force is applied. It also determines the strength of its mutual gravitational attraction to other bodies. In the theory of relativity a related concept is the mass–energy content of a system. The SI unit of mass is the kilogram (kg).

Mass is not the same as weight, even though we often calculate an object's mass by measuring its weight with a spring scale, rather than comparing it directly with known masses. An object on the Moon would weigh less than it does on Earth because of the lower gravity, but it would still have the same mass. This is because weight is a force, while mass is the property that (along with gravity) determines the strength of this force.

The standard International System of Units (SI) unit of mass is the kilogram (kg). The kilogram is 1000 grams (g), first defined in 1795 as one cubic decimeter of water at the melting point of ice. Then in 1889, the kilogram was redefined as the mass of the international prototype kilogram, and as such is independent of the meter, or the properties of water. As of January 2013, there are several proposals for redefining the kilogram yet again, including a proposal for defining it in terms of the Planck constant.

- Atomic Mass Unit (u)
- Attograms (ag)
- Blobs (blob)
- British Tonnes (t [British])
- Carats (ct)
- Carats Troy (ct [troy])
- Centigrams (cg)
- Cloves UK (clove)
- Daltons (Da)
- Decagrams (da g)
- Decigrams (dg)
- Dekagrams (dag)
- Deuteron Mass (D)
- Drams (dr)
- Drams Apothecaries (dr [apothecaries])
- Drams Avoirdupois (dr [avoirdupois])
- Drams Troy (dr [troy])
- Earth Mass (M∅)
- Electron Mass (me)
- Exagrams (Eg)
- Femtograms (fg)
- Gigagrams (Gg)
- Grains (gr)
- Grams (g)
- Hectograms (hg)
- Hundredweight UK (cwt UK)
- Hundredweight US (cwt US)
- Hyl (hyl)
- Imperial Tons (t [Imperial])
- Kilograms (kg)
- Kilopounds (kip)
- Long Tons UK (t [UK])
- Megagrams (Mg)
- Metric Tons (t [Metric])
- Micrograms (μg)
- Milligrams (mg)
- Muon Mass (mu)
- Nanograms (ng)
- Neutron Mass (n0)
- Newtons[Earth Gravity] (N)
- Ounces (oz)
- Pennyweights (pwt)
- Petagrams (Pg)
- Picograms (pg)
- Planck Mass (mp)
- Pounds (lbs)
- Proton Mass (p+)
- Quarters UK (1/4[UK])
- Quarters US (1/4[US])
- Quintals (q)
- Sacks (sack)
- Scruples (℈)
- Short Tons US (t)
- Slinches (sln)
- Slugs (slug)
- Solar Mass (Mo)
- Stones (st)
- Stones UK (st [UK])
- Stones US (st [US])
- Sun Mass (M☉)
- Teragrams (Tg)
- Tods (tod)
- Tonnes UK (t [tonnes-UK])
- Tons IMPERIAL (t [IMPERIAL])
- Tons LONG UK (t [LONG UK])
- Tons METRIC (t [METRIC])
- Tons SHORT US (t [SHORT-US])

- Tods -> Proton Mass
- Proton Mass -> Tods
- Tons METRIC -> Earth Mass
- Earth Mass -> Tons METRIC
- Electron Mass -> Planck Mass
- Planck Mass -> Electron Mass
- Ounces -> Decagrams
- Decagrams -> Ounces
- Short Tons US -> Newtons[Earth Gravity]
- Newtons[Earth Gravity] -> Short Tons US
- Tons LONG UK -> Slinches
- Slinches -> Tons LONG UK
- Stones -> Picograms
- Picograms -> Stones
- Imperial Tons -> Daltons
- Daltons -> Imperial Tons
- Centigrams -> Exagrams
- Exagrams -> Centigrams
- Tonnes UK -> Micrograms
- Micrograms -> Tonnes UK