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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.
1/7000 pound; equals a troy grain or 64.799 milligrams
| Kilograms | Grains |
|---|---|
| 0kg | 0.00gr |
| 1kg | 15432.36gr |
| 2kg | 30864.72gr |
| 3kg | 46297.07gr |
| 4kg | 61729.43gr |
| 5kg | 77161.79gr |
| 6kg | 92594.15gr |
| 7kg | 108026.51gr |
| 8kg | 123458.86gr |
| 9kg | 138891.22gr |
| 10kg | 154323.58gr |
| 11kg | 169755.94gr |
| 12kg | 185188.30gr |
| 13kg | 200620.65gr |
| 14kg | 216053.01gr |
| 15kg | 231485.37gr |
| 16kg | 246917.73gr |
| 17kg | 262350.09gr |
| 18kg | 277782.44gr |
| 19kg | 293214.80gr |
| Kilograms | Grains |
|---|---|
| 20kg | 308647.16gr |
| 21kg | 324079.52gr |
| 22kg | 339511.88gr |
| 23kg | 354944.23gr |
| 24kg | 370376.59gr |
| 25kg | 385808.95gr |
| 26kg | 401241.31gr |
| 27kg | 416673.67gr |
| 28kg | 432106.02gr |
| 29kg | 447538.38gr |
| 30kg | 462970.74gr |
| 31kg | 478403.10gr |
| 32kg | 493835.46gr |
| 33kg | 509267.81gr |
| 34kg | 524700.17gr |
| 35kg | 540132.53gr |
| 36kg | 555564.89gr |
| 37kg | 570997.25gr |
| 38kg | 586429.60gr |
| 39kg | 601861.96gr |
| Kilograms | Grains |
|---|---|
| 40kg | 617294.32gr |
| 41kg | 632726.68gr |
| 42kg | 648159.04gr |
| 43kg | 663591.39gr |
| 44kg | 679023.75gr |
| 45kg | 694456.11gr |
| 46kg | 709888.47gr |
| 47kg | 725320.83gr |
| 48kg | 740753.18gr |
| 49kg | 756185.54gr |
| 50kg | 771617.90gr |
| 51kg | 787050.26gr |
| 52kg | 802482.62gr |
| 53kg | 817914.97gr |
| 54kg | 833347.33gr |
| 55kg | 848779.69gr |
| 56kg | 864212.05gr |
| 57kg | 879644.41gr |
| 58kg | 895076.76gr |
| 59kg | 910509.12gr |