Standard Rebar Sizes

U.S. STANDARD REINFORCING STEEL BARS Area Weight Diameter Bar Size squar Designatio e square inche lb/ft kg/m mm m n inche meters s s 0.000070 0.009 #3 0.11 97 0.376 0.56 0.375 9.53 5 0.000129 0.012 #4 0.20 03 0.668 0.99 0.500 12.70 7 0.000200 0.015 #5 0.31 00 1.043 1.55 0.625 15.88 9 0.000283 0.019 #6 0.44 87 1.502 2.24 0.750 19.05 1 0.000387 0.022 #7 0.60 10 2.044 3.04 0.875 22.23 2 0.000509 0.025 #8 0.79 68 2.670 3.97 1.000 25.40 4 0.000645 0.028 #9 1.00 16 3.400 5.06 1.128 28.65 7 0.000819 0.032 #10 1.27 35 4.303 6.40 1.270 32.26 3 0.001006 0.035 #11 1.56 45 5.313 7.91 1.410 35.81 8 0.001451 0.043 #14 2.25 61 7.650 11.38 1.693 4 43 3.00 0 0.002580 13.60 0.057 #18 4.00 64 0 20.24 2.257 57.33 3

Bar Size Designatio n

METRIC REINFORCING BARS Area Weight Diameter squar e square lb/ft kg/m inches mm inche meters s

10m

0.16

0.0001

0.527

0.784

0.445

11.3

15m 20m

0.31 0.47

0.0002 0.0003

1.054 1.563

1.569 2.326

0.630 0.768

16.0 19.5

m 0.011 3 0.016 0 0.019

25m

0.78

0.0005

2.606

3.878

0.992

25.2

30m

1.09

0.0007

3.649

5.430

1.177

29.9

35m

1.55

0.0010

5.213

7.758

1.406

35.7

45m

2.33

0.0015

7.820

11.637

1.710

43.4

55m

3.88

0.0025

13.034

19 19.397

2.220

56.4

5 0.025 2 0.029 9 0.035 7 0.043 4 0.056 4