Steel Ball Weight Sheet  
Conversion of weight & pieces
Diameter Per 1000 pcs Per 1kg Diameter per1000 pcs Per 1kg Diameter Per1000  pcs Per 1kg
mm （kg） (pcs) mm （kg） (pcs) mm （kg） (pcs)
0.5 0.00051 1960780 8 2.09 478 20.637 35.8 27.9
0.68 0.00128 781250 8.5 2.5 400 21 37.75 26.49
0.8 0.00209 478470 8.731 2.71 369 21.4313 40.1 24.9
1 0.00408 245100 9 2.97 337 22.225 44.8 22.3
1.2 0.00705 141840 9.525 3.52 284 23 49.59 20.17
1.3 0.00893 111980 10 4.08 245 23.0188 49.8 20.1
1.45 0.0124 80645 10.3188 4.48 223 23.8125 55.1 18.2
1.588 0.016 62350 11 5.42 185 24 56.34 17.75
1.75 0.0218 45871 11.1125 5.6 179 24.6063 60.8 16.5
2 0.0326 30700 11.5 6.22 161 25 63.68 15.7
2.3812 0.055 18182 11.5094 6.22 161 25.4 66.8 15
2.5 0.0637 15698 11.9062 6.88 145 26.1938 73.3 13.64
3 0.11 9091 12 7.04 142 26.9875 80.2 12.47
3.175 0.131 7634 12.3031 7.6 132 27.7812 87.4 11.4
3.5 0.175 5717 12.7 8.35 120 28 89.47 11.18
3.9690 0.255 3922 13.4938 10 100 28.575 95.2 10.5
4 0.261 3831 14 11.18 89 30.1625 112 8.93
4.7625 0.441 2268 14.2875 11.9 84 31.75 130.6 7.66
5 0.51 1961 15.0812 14 71.4 33.3375 151.1 6.62
5.1594 0.56 1786 15.875 16.3 61.3 34.925 173.8 5.75
5.5562 0.699 1431 16 1 6.69 59.9 36.5125 198.6 5.04
5.9531 0.86 1163 16.6688 18.9 52.9 38.1    225.6 4.43
6 0.881 1136 17 20.02 50 40 261.1 3.83
6.35 1.04 962 17.4625 21.7 46.1 41.275  286.8 3.49
6.5 1.119 894 18.2562 24.8 40.3 42.8625 321.2 3.11
6.7469 1.25 800 19 27.96 35.77 44.45   358.2 2.79
7.1438 1.49 671 19.05 28.2 35.5 47.625  440.6 2.27
7.9375 2.04 490 19.9438 31.9 31.4 50.8 534.7 1.87