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The kg is defined as being equal to the mass of the International Prototype of the Kilogram (IPK), a block of platinum-iridium alloy manufactured in 1889 and stored at the International Bureau of Weights and Measures in Sèvres, France.
It is the only SI unit that is defined by a physical object rather than a fundamental physical property that can be reproduced in laboratories.
The stone is a unit of weight in the imperial system used informally in the UK and Ireland, almost exclusively as a measure of body weight. Although sanctioned by the EU for use as a supplementary unit it is essentially obsolete outside the UK and Ireland.
| -20.000kg | -3st -2.0925lb |
| -19.000kg | -2st -13.888lb |
| -18.000kg | -2st -11.683lb |
| -17.000kg | -2st -9.4786lb |
| -16.000kg | -2st -7.2740lb |
| -15.000kg | -2st -5.0693lb |
| -14.000kg | -2st -2.8647lb |
| -13.000kg | -2st -0.66009lb |
| -12.000kg | -1st -12.455lb |
| -11.000kg | -1st -10.251lb |
| -10.000kg | -1st -8.0462lb |
| -9.0000kg | -1st -5.8416lb |
| -8.0000kg | -1st -3.6370lb |
| -7.0000kg | -1st -1.4324lb |
| -6.0000kg | 0st -13.228lb |
| -5.0000kg | 0st -11.023lb |
| -4.0000kg | 0st -8.8185lb |
| -3.0000kg | 0st -6.6139lb |
| -2.0000kg | 0st -4.4092lb |
| -1.0000kg | 0st -2.2046lb |
| Kilograms | Stones |
|---|---|
| 0.0000kg | 0st 0.0000lb |
| 1.0000kg | 0st 2.2046lb |
| 2.0000kg | 0st 4.4092lb |
| 3.0000kg | 0st 6.6139lb |
| 4.0000kg | 0st 8.8185lb |
| 5.0000kg | 0st 11.023lb |
| 6.0000kg | 0st 13.228lb |
| 7.0000kg | 1st 1.4324lb |
| 8.0000kg | 1st 3.6370lb |
| 9.0000kg | 1st 5.8416lb |
| 10.000kg | 1st 8.0462lb |
| 11.000kg | 1st 10.251lb |
| 12.000kg | 1st 12.455lb |
| 13.000kg | 2st 0.66009lb |
| 14.000kg | 2st 2.8647lb |
| 15.000kg | 2st 5.0693lb |
| 16.000kg | 2st 7.2740lb |
| 17.000kg | 2st 9.4786lb |
| 18.000kg | 2st 11.683lb |
| 19.000kg | 2st 13.888lb |
| Kilograms | Stones |
|---|---|
| 20.000kg | 3st 2.0925lb |
| 21.000kg | 3st 4.2971lb |
| 22.000kg | 3st 6.5017lb |
| 23.000kg | 3st 8.7063lb |
| 24.000kg | 3st 10.911lb |
| 25.000kg | 3st 13.116lb |
| 26.000kg | 4st 1.3202lb |
| 27.000kg | 4st 3.5248lb |
| 28.000kg | 4st 5.7294lb |
| 29.000kg | 4st 7.9341lb |
| 30.000kg | 4st 10.139lb |
| 31.000kg | 4st 12.343lb |
| 32.000kg | 5st 0.54792lb |
| 33.000kg | 5st 2.7525lb |
| 34.000kg | 5st 4.9572lb |
| 35.000kg | 5st 7.1618lb |
| 36.000kg | 5st 9.3664lb |
| 37.000kg | 5st 11.571lb |
| 38.000kg | 5st 13.776lb |
| 39.000kg | 6st 1.9803lb |
| Kilograms | Stones |
|---|---|
| 40.000kg | 6st 4.1849lb |
| 41.000kg | 6st 6.3895lb |
| 42.000kg | 6st 8.5941lb |
| 43.000kg | 6st 10.799lb |
| 44.000kg | 6st 13.003lb |
| 45.000kg | 7st 1.2080lb |
| 46.000kg | 7st 3.4126lb |
| 47.000kg | 7st 5.6173lb |
| 48.000kg | 7st 7.8219lb |
| 49.000kg | 7st 10.027lb |
| 50.000kg | 7st 12.231lb |
| 51.000kg | 8st 0.43575lb |
| 52.000kg | 8st 2.6404lb |
| 53.000kg | 8st 4.8450lb |
| 54.000kg | 8st 7.0496lb |
| 55.000kg | 8st 9.2542lb |
| 56.000kg | 8st 11.459lb |
| 57.000kg | 8st 13.663lb |
| 58.000kg | 9st 1.8681lb |
| 59.000kg | 9st 4.0727lb |
| 60.000kg | 9st 6.2774lb |
| 61.000kg | 9st 8.4820lb |
| 62.000kg | 9st 10.687lb |
| 63.000kg | 9st 12.891lb |
| 64.000kg | 10st 1.0958lb |
| 65.000kg | 10st 3.3005lb |
| 66.000kg | 10st 5.5051lb |
| 67.000kg | 10st 7.7097lb |
| 68.000kg | 10st 9.9143lb |
| 69.000kg | 10st 12.119lb |
| 70.000kg | 11st 0.32358lb |
| 71.000kg | 11st 2.5282lb |
| 72.000kg | 11st 4.7328lb |
| 73.000kg | 11st 6.9374lb |
| 74.000kg | 11st 9.1421lb |
| 75.000kg | 11st 11.347lb |
| 76.000kg | 11st 13.551lb |
| 77.000kg | 12st 1.7559lb |
| 78.000kg | 12st 3.9606lb |
| 79.000kg | 12st 6.1652lb |