Steel Unit Weight
Table
Unit weight values (kg/m) for round, hexagon, square, and flat steel bars.
Weight Reference
Select Profile Type & Find Weight
| Diameter (mm) | kg/m | kg / 6m bar |
|---|---|---|
| 6 | 0.222 | 1.33 |
| 8 | 0.395 | 2.37 |
| 10 | 0.617 | 3.70 |
| 12 | 0.888 | 5.33 |
| 14 | 1.210 | 7.26 |
| 16 | 1.580 | 9.48 |
| 18 | 2.000 | 12.00 |
| 20 | 2.470 | 14.82 |
| 22 | 2.980 | 17.88 |
| 25 | 3.850 | 23.10 |
| 28 | 4.830 | 28.98 |
| 30 | 5.550 | 33.30 |
| 32 | 6.310 | 37.86 |
| 35 | 7.550 | 45.30 |
| 38 | 8.900 | 53.40 |
| 40 | 9.860 | 59.16 |
| 42 | 10.880 | 65.28 |
| 45 | 12.480 | 74.88 |
| 50 | 15.410 | 92.46 |
| 55 | 18.650 | 111.90 |
| 60 | 22.190 | 133.14 |
| 65 | 26.050 | 156.30 |
| 70 | 30.210 | 181.26 |
| 75 | 34.680 | 208.08 |
| 80 | 39.460 | 236.76 |
| 90 | 49.940 | 299.64 |
| 100 | 61.650 | 369.90 |
| 110 | 74.600 | 447.60 |
| 120 | 88.780 | 532.68 |
| 130 | 104.200 | 625.20 |
| 140 | 120.800 | 724.80 |
| 150 | 138.700 | 832.20 |
Calculation Formulas
Round Bar
W = d² x 0.006165
or W = (π/4) x d² x ρ / 1000
Hexagon
W = d² x 0.006798
Round weight x 1.103
Square Bar
W = d² x 0.00785
d = side length (mm)
Flat Bar
W = a x b x 0.00785
a = width, b = thickness (mm)
* All formulas calculated based on steel density ρ = 7.85 g/cm³. W = kg/m, d = mm
* Values calculated per EN 10060 with 7.85 g/cm³ density. Actual weights may vary ±3% depending on tolerances.
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