Construction
Rebar Weight Calculator
Estimate reinforcing-steel weight from bar diameter, total length, and steel density.
- Free to use
- Runs in your browser
- Level B · Industry formula
- Last reviewed 2026-08-16
Calculator guide
How to use the Rebar Weight Calculator
Estimate reinforcing-steel weight from bar diameter, total length, and steel density. Enter the requested values and select Calculate. The result and supporting values are produced locally in your browser.
Formula
Worked example
500 ft of approximately 5/8-inch solid steel bar weighs about 522 lb.
What to keep in mind
- This is a geometric steel-weight estimate using typical steel density. Nominal rebar weights can differ slightly by standard and manufacturer.
- Use project specifications and applicable structural standards for ordering and design.
Methodology
This calculator uses deterministic arithmetic and performs the calculation locally in your browser. Verify assumptions, units, and source values for your specific use case.
Review standard: Level B · Industry formula. How calculator reviews work.
Frequently asked questions
What does this calculator calculate?
Estimate reinforcing-steel weight from bar diameter, total length, and steel density.
How is the result calculated?
Weight ≈ Total Length × 2.6729 × Diameter² (lb, diameter in inches).
Can I use the result for an important decision?
Use the result as a calculation aid and verify the inputs, assumptions, and applicable professional or regulatory requirements before relying on it for an important decision.
Does CalculateMeasure store the values I enter?
The calculator performs its arithmetic in your browser. The calculator itself does not need to send your entered values to a server to produce the result.