Looking for an easy way to calculate the weight of square steel bars? Look no further than the square bar weight calculator!
Whether you’re a metalworker or just someone who needs to know the weight of square bars for a project, this handy tool makes it easy to get accurate weight measurements.
With a range of sizes and weights to choose from, you can quickly and easily find the information you need to get the job done right.
So why wait? Try the square bar weight calculator today and see how easy it is to get the information you need!
What is square bar?
Square steel refers to square solid steel. Similar bars are round steel, hexagonal steel and octagonal steel.

Square Bar Weight Calculator
According to dimension, shape, weight and allowable deviation of hot rolled steel bar (GB / t702-2008), the side length of hot rolled square bar is 5.5mm ~ 200mm.
Generally, it can be delivered according to actual weight or theoretical weight in the market.
You can use the square steel weight calculator below to calculate the weight of square steel.
Related Tool: Steel Weight Calculator
Square Bar Weight Chart
Side length (mm) | Sectional area (cm2) | Weight (kg/m) |
5mm | 0.25 | 0.196 |
6mm | 0.36 | 0.283 |
7mm | 0.49 | 0.385 |
8mm | 0.64 | 0.502 |
9mm | 0.81 | 0.636 |
10mm | 1 | 0.785 |
11mm | 1.21 | 0.95 |
12mm | 1.44 | 1.13 |
13mm | 1.69 | 1.33 |
14mm | 1.96 | 1.54 |
15mm | 2.25 | 1.77 |
16mm | 2.56 | 2.01 |
17mm | 2.89 | 2.27 |
18mm | 3.24 | 2.54 |
19mm | 3.61 | 2.82 |
20mm | 4 | 3.14 |
21mm | 4.41 | 3.46 |
22mm | 4.84 | 3.8 |
24mm | 5.76 | 4.52 |
25mm | 6.25 | 4.91 |
26mm | 6.76 | 5.3 |
28mm | 7.84 | 6.15 |
30mm | 9 | 7.06 |
32mm | 10.24 | 8.04 |
34mm | 11.56 | 9.07 |
36mm | 12.96 | 10.17 |
38mm | 14.44 | 11.24 |
40mm | 16 | 12.56 |
42mm | 17.64 | 13.85 |
45mm | 20.25 | 15.9 |
48mm | 23.04 | 18.09 |
50mm | 25 | 19.63 |
53mm | 28.09 | 22.05 |
56mm | 31.36 | 24.61 |
60mm | 36 | 28.26 |
63mm | 39.69 | 31.16 |
65mm | 42.25 | 33.17 |
70mm | 49 | 38.49 |
75mm | 56.25 | 44.16 |
80mm | 64 | 50.24 |
85mm | 72.25 | 56.72 |
90mm | 81 | 63.59 |
95mm | 90.25 | 70.85 |
100mm | 100 | 78.5 |