Multiply diameter of bar by 4. Square the result and divide by 6.

For example:

Size 3” round

3 X 4 = 12

12 X 12 = 144

144 ÷ 6 = 24 lbs. per foot

Square the section and add a zero. This will give the weight per yard. Divide by 3 to get the weight per foot. For example:

Size 4” square

4 X 4 = 16

Add a zero = 160 lbs. per yard

160 ÷ 3 = 53.33 lbs. per foot

Multiply the width by the thickness. Add a zero and divide by 3.

For example:

Size 4” X 1”

4 X 1 = 4

Add a zero = 40

40 ÷ 3 = 13.33 lbs. per foot

*NOTE:** For Molybdenum High Speed grades, multiply tool steel weights by 1.03. For Tungsten High Speed grades, multiply steel weights by 1.11 *

SHAPE |
POUNDS PER FOOT |
FEET PER POUND |

Round |
2.667 X d² |
.3749 ÷ d² |

Flat |
3.396 X wt |
.2945 ÷ wt |

Square |
3.396 X d² |
.2945 ÷ d² |

Hexagonal |
2.942 X d² |
.3398 ÷ d² |

Half Round |
1.334 X d² |
.7498 ÷ d² |

Half Oval |
2.647 X wt |
.3778 ÷ wt |