Rebar specific weight: weight per linear meter
Very often both the customer and the foreman need to know the exact weight of rebar used for various works. The formula for calculating rebar weight is very simple: the length of the rebar multiplied by the weight of one linear meter of rebar. Everything is quite straightforward. For clarity, below is a short table of rebar specific weight for different diameters, which will help determine such a parameter as the weight of one linear meter of rebar.
| Rebar diameter, mm | Weight, kg/meter | Meters in 1 tonne |
|---|---|---|
| 5.5 | 0.187 | 5347 |
| 6 | 0.222 | 4504 |
| 8 | 0.395 | 2531 |
| 10 | 0.617 | 1620 |
| 12 | 0.888 | 1126 |
| 14 | 1.210 | 826 |
| 16 | 1.580 | 633 |
| 18 | 2.000 | 500 |
| 20 | 2.470 | 405 |
| 22 | 2.980 | 335 |
| 25 | 3.850 | 260 |
| 28 | 4.830 | 207 |
| 32 | 6.310 | 158 |
| 36 | 7.990 | 125 |
| 40 | 9.870 | 101 |
| 45 | 12.480 | 80 |
| 50 | 15.410 | 65 |
Detailed table of the weight of 1 meter of rebar
Weight of 5 mm rebar ~ 0.186 kg/m
Weight of 6 mm rebar ~ 0.222 kg/m
Weight of 8 mm rebar ~ 0.395 kg/m
Weight of 10 mm rebar ~ 0.617 kg/m
Weight of 12 mm rebar ~ 0.888 kg/m
Weight of 14 mm rebar ~ 1.210 kg/m
Weight of 16 mm rebar ~ 1.580 kg/m
Weight of 18 mm rebar ~ 2.000 kg/m
Weight of 20 mm rebar ~ 2.470 kg/m
Weight of 22 mm rebar ~ 2.980 kg/m
Weight of 25 mm rebar ~ 3.850 kg/m
Weight of 28 mm rebar ~ 4.830 kg/m
Weight of 32 mm rebar ~ 6.310 kg/m
Weight of 36 mm rebar ~ 7.990 kg/m
Weight of 40 mm rebar ~ 9.870 kg/m
Weight of 45 mm rebar ~ 12.480 kg/m
Weight of 50 mm rebar ~ 15.410 kg/m
Example of calculating linear meter rebar weight
The formula for calculating the number of meters of rebar in 1 tonne is also very simple. It is enough to divide 1 t, or 1000 kg, by the weight of 1 meter of rebar. Below are several examples of calculating the number of meters in 1 tonne of rebar.
1000 kg / 0.222 kg/m = 4504 m in one tonne of 6 mm diameter rebar. In the same way, you can determine the number of meters in one tonne of rebar for any other diameter.
In the article, the weight of one meter of rebar is indicated approximately for each manufacturer. For more accurate rebar weight calculations, request documents and product specifications from the seller.
Knowing approximate figures, you can already calmly determine whether the seller is trying to deceive you on the weight or length of the rebar.
All information is taken from the USSR State Standard GOST 5781-82 for rebar weight.
Frequently Asked Questions
Can the density of rebar of all diameters be used for precise calculations?
The density and weight values for rebar of all diameters in this article are reference values. They are suitable for preliminary estimates, but design, construction, production and other critical calculations should be checked against standards, material datasheets or measurement results.
Why can the actual weight of rebar of all diameters differ from the table?
The actual weight of rebar of all diameters depends on composition, moisture, temperature, porosity, fraction size, material grade and measurement conditions. Because of this, real values may differ from the average table data.
How do you calculate the mass of rebar of all diameters from density?
For an approximate calculation, use the formula: mass = density × volume. If the density of rebar of all diameters is given in kg/m³ and the volume is in m³, the result will be in kilograms.