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Calcimator

Rebar Weight Calculator

Calculate rebar weight by bar size, length, and quantity using ASTM A615 standard weights per foot.

Inputs

Results

Weight per Foot (lbs)

0.668

Total Weight (lbs)

133.6

Total Length (ft)200
Diameter (inches)0.5
Diameter (mm)12.7
Cross Section (sq in)0.196
Total Weight (kg)60.6
Estimated Cost$86.84
Total Length M60.96
How to Use This Calculator
  1. Enter the bar size number (#3 through #18) — the bar number equals the diameter in eighths of an inch.
  2. Set the bar length in feet (standard mill length is 20 ft, but enter cut lengths if known).
  3. Enter the quantity — total number of individual rebar pieces for this size and length.
  4. Read Weight per Foot (lbs) and Total Weight (lbs) for material takeoff and load calculations.
  5. Use Total Weight (kg) if your supplier quotes in metric tons.
  6. Check Estimated Cost for budget purposes; adjust using your local market price per pound.

What each input means

Bar Size (#3-#18)
Rebar bar number (diameter in 1/8 inch; #4 = 0.5 in)
Bar Length (ft)
Length of each rebar in feet (standard: 20 ft)
Number of Bars
Total number of rebar pieces needed

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Bar Size (#3-#18) = 4, Bar Length (ft) = 20, Number of Bars = 10 = 3 input(s) provided
  2. Calculate Weight per Foot
    Weight per Foot
    0.668 = 0.668
  3. Calculate Total Weight
    Total Weight
    133.6 = 133.6
  4. Calculate Total Length
    Total Length
    200 = 200
  5. Calculate Diameter
    Diameter
    0.5 = 0.5

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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