Enter the rebar radius (in) and the rebar length (ft) into the Rebar Weight Calculator. The calculator will evaluate the Rebar Weight.

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## Rebar Weight Formula

The following two example problems outline the steps and information needed to calculate the Rebar Weight.

**RW = pi*(r/12)^2*L *490**

Variables:

- RW is the Rebar Weight (lb)
- r is the rebar radius (in)
- L is the rebar length (ft)

## How to Calculate Rebar Weight?

The following steps outline how to calculate the Rebar Weight.

- First, determine the rebar radius (in).
- Next, determine the rebar length (ft).
- Next, gather the formula from above = RW = pi*(r/12)^2*L *490.
- Finally, calculate the Rebar Weight.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

rebar radius (in) = 4

rebar length (ft) = 150

RW = pi*(r/12)^2*L *490** **= ?