Rebar Weight Calculator
Rebar Weight Chart
| Item | Model | Unit | Weight |
|---|---|---|---|
| Rebar | Φ6 | kg/m | 0.222 |
| Rebar | Φ8 | kg/m | 0.395 |
| Rebar | Φ10 | kg/m | 0.6169 |
| Rebar | Φ12 | kg/m | 0.888 |
| Rebar | Φ14 | kg/m | 1.21 |
| Rebar | Φ16 | kg/m | 1.58 |
| Rebar | Φ18 | kg/m | two |
| Rebar | Φ20 | kg/m | 2.47 |
| Rebar | Φ22 | kg/m | 2.98 |
| Rebar | Φ25 | kg/m | 3.85 |
| Rebar | Φ28 | kg/m | 4.83 |
| Rebar | Φ32 | kg/m | 6.31 |
| Rebar | Φ36 | kg/m | 7.99 |
| Rebar | Φ40 | kg/m | 9.87 |
| Rebar | Φ50 | kg/m | 15.42 |
| MS HR round wire rod | Φ5.5 | kg/m | 0.187 |
| MS HR round wire rod | Φ6.0 | kg/m | 0.222 |
| MS HR round wire rod | Φ6.5 | kg/m | 0.26 |
| MS HR round wire rod | Φ7.0 | kg/m | 0.3019 |
| MS HR round wire rod | Φ7.5 | kg/m | 0.3469 |
| Steel strand for prestressed concrete（1×2） | 10 | kg/km | 310 |
| Steel strand for prestressed concrete（1×2） | 12 | kg/km | 447 |
| Steel strand for prestressed concrete（1×3） | 10.8 | kg/km | 465 |
| Steel strand for prestressed concrete（1×3） | 12.9 | kg/km | 671 |
| Steel strand for prestressed concrete（1×7）Standard | 9.5 | kg/km | 432 |
| Steel strand for prestressed concrete（1×7）Standard | 11.1 | kg/km | 580 |
| Steel strand for prestressed concrete（1×7）Standard | 12.7 | kg/km | 774 |
| Steel strand for prestressed concrete（1×7）Standard | 15.2 | kg/km | 1101 |
| Prestressed concrete steel strand（1×7） Drawing type | 12.7 | kg/km | 890 |
| Prestressed concrete steel strand（1×7） Drawing type | 15.2 | kg/km | 1295 |
| Cut wire | 5 | kg/km | 0.016 |
Observation:
(1) Formula for calculating the theoretical weight of rebar: theoretical weight (kg/m) = 0.00617 × D² (where D is the section diameter, unit: mm)
(2) Density is calculated as 7.85g/cm³;
(3) The theoretical weight of hot-rolled ribbed bars, cold-rolled ribbed bars, HRB335, HRB400, HRB500 and other deformed bars of different grades is the same.
(4) The theoretical weight calculated by the formula is different from the actual weight, and the error is generally about 0.2% ~ 0.7%, which can only be used as a reference for estimation.
Reinforcement weight with common specifications
(weight per meter)
For example:
- Φ6=0.222Kg
- Φ8=0.395Kg
- Φ10=0.617Kg
- Φ12=0.888Kg
- Φ14=1.21Kg
- Φ16=1.58Kg
- Φ18=2Kg
- Φ20=2.47Kg
- Φ22=3Kg
- Φ25=3.86Kg
- Φ28=4.83Kg
- Φ32=6.31Kg
- Φ36=7.99Kg
- Φ40=9.87Kg
Rebar Specification
Rebar specifications must typically be listed in commercial import and export contracts.
Typically, rebar specifications should include standard class, nominal diameter, nominal weight, specified length, and allowable differences from the above indicators.
Standard nominal diameters for rebar are 6, 8, 10, 12, 16, 20, 25, 32, 40 and 50 mm.
The supplied length of rebar can be fixed length or multiple lengths.
The fixed length range of rebar exported from China is 6 to 12 m, while that of rebar exported from Japan is 3.5 to 10 m. If there is no requirement specified in the contract for domestic rebar, its length is generally 9m or 12m.
