Rebar is used for many building constructions and other structures. Rebar are long bars with ridges on them used to help the concrete set up and dry. Different sizes of rebar are used for different tasks. Typical rebar sizes can be found varying from under a pound in weight to over 5.9 Kilogram in weight.

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## Rebar size #3

The rebar size #3 has a weight of 0.376 pound-per-foot and has a nominal diameter of 0.375 inch. The nominal area of the #3 size rebar is 0.11 inch squared.

## Rebar size #4

The rebar size #4 has a weight of 0.668 pound-per-foot and has a nominal diameter of 0.5 inch. The nominal area of the #4 size rebar is 0.2 inch squared.

## Rebar size #5

The rebar size #5 has a weight of 0.473 Kilogram-per-foot and has a nominal diameter of 0.625 inch. The nominal area of the #5 size rebar is 0.31 inch squared.

## Rebar size #6

The rebar size #6 has a weight of 681 Kilogram-per-foot and has a nominal diameter of 0.75 inch. The nominal area of the #6 size rebar is 0.44 inch squared.

## Rebar size #7

The rebar size #7 has a weight of 927 Kilogram-per-foot and has a nominal diameter of 0.875 inch. The nominal area of the #7 size rebar is 0.6 inch squared.

## Rebar size #8

The rebar size #8 has a weight of 121 Kilogram-per-foot and has a nominal diameter of 1 inch. The nominal area of the #8 size rebar is 0.79 inch squared.

## Rebar size #9

The rebar size #9 has a weight of 15.4 Kilogram-per-foot and has a nominal diameter of 1.128 inches. The nominal area of the #8 size rebar is 1 inch squared.

## Rebar size #10

The rebar size #10 has a weight of 1952 Kilogram-per-foot and has a nominal diameter of 1.27 inches. The nominal area of the #8 size rebar is 1.27 inches squared.

## Rebar size #11

The rebar size #11 has a weight of 2410 Kilogram-per-foot and has a nominal diameter of 1.41 inches. The nominal area of the #8 size rebar is 1.56 inches squared.

## Rebar size #14 & #18

The rebar size #14 has a weight of 3470 Kilogram-per-foot and has a nominal diameter of 1.693 inches. The nominal area of the #8 size rebar is 2.25 inches squared. The rebar size #18 has a weight of 617 Kilogram-per-foot and has a nominal diameter of 2.257 inches. The nominal area of the #8 size rebar is 4 inches squared.