Uzito wa nondo kwa kipande cha mita moja = d² / 162

[mm 6]
Uzito wa mita moja = 6*6/162
= 36/162
= 0.222 kg

Uzito wa mita 12(nondo nzima)
= 0.222*12
= 2.664 kg

:::

[mm 8]
Uzito wa mita moja = 8*8/162
= 64/162
= 0.395 kg

Uzito wa mita 12(nondo nzima)
= 0.395*12
= 4.74 kg

:::

[mm 10]
Uzito wa mita moja = 10*10/162
= 100/162
= 0.617 kg

Uzito wa mita 12(nondo nzima)
= 0.617*12
= 7.404 kg

:::

[mm 12]
Uzito wa mita moja = 12*12/162
= 144/162
= 0.889 kg

Uzito wa mita 12(nondo nzima)
= 0.889*12
= 10.668 kg

:::

[mm 16]
Uzito wa mita moja = 16*16/162
= 256/162
= 1.580 kg

Uzito wa mita 12(nondo nzima)
= 1.580*12
= 18.96 kg

:::

[mm 20]
Uzito wa mita moja = 20*20/162
= 400/162
= 2.469 kg

Uzito wa mita 12(nondo nzima)
= 2.469*12
= 29.628 kg

:::

[mm 25]
Uzito wa mita moja = 25*25/162
= 625/162
= 3.858 kg

Uzito wa mita 12(nondo nzima)
= 3.858*12
= 46.296 kg

:::

[mm 30]
Uzito wa mita moja = 30*30/162
= 900/162
= 5.556 kg

Uzito wa mita 12(nondo nzima)
= 5.556*12
= 66.672 kg

:::

[mm 32]
Uzito wa mita moja = 32*32/162
= 1024/162
= 6.321 kg

Uzito wa mita 12(nondo nzima)
= 6.321*12
= 75.852 kg

:::

[mm 40]
Uzito wa mita moja = 40*40/162
= 1600/162
= 9.877 kg

Uzito wa mita 12(nondo nzima)
= 9.877*12
= 118.524 kg