Rebar Weight Calculator User Guide
In construction, rebar cutting, material procurement, quickly calculating rebar (deformed steel bar) weight is essential for cost control and material verification. Use our free online rebar weight calculator for instant results.
Supported Rebar Types
- ✅ Common Diameters: Φ6, Φ8, Φ10, Φ12, Φ14, Φ16, Φ18, Φ20, Φ22, Φ25, Φ28, Φ32
- ✅ Rebar Grades: HRB400, HRB500, HPB300 (same theoretical weight)
- ✅ Calculation Modes: Single bar weight / Total weight with quantity
Rebar Weight Formula
Weight per meter (kg/m) = 0.00617 × Diameter² (mm)
Where:
- d: Rebar nominal diameter (mm)
- 7.85: Steel density (g/cm³)
Common Rebar Theoretical Weight Table
| Diameter (mm) | Weight per Meter (kg/m) | 9m Bar Weight (kg) | 12m Bar Weight (kg) |
|---|---|---|---|
| Φ12 | 0.888 | 7.992 | 10.656 |
| Φ14 | 1.21 | 10.89 | 14.52 |
| Φ16 | 1.58 | 14.22 | 18.96 |
| Φ18 | 2.00 | 18.00 | 24.00 |
| Φ20 | 2.47 | 22.23 | 29.64 |
| Φ22 | 2.98 | 26.82 | 35.76 |
| Φ25 | 3.85 | 34.65 | 46.20 |
| Φ28 | 4.83 | 43.47 | 57.96 |
| Φ32 | 6.31 | 56.79 | 75.72 |
Use Cases
- Construction site: Quick rebar quantity estimation
- Cost estimators: Material budgeting and quotes
- Steel processing: Cutting and packaging management
- Suppliers: Customer quotes and shipping verification
Use our professional rebar weight calculator for accurate procurement and cost savings!
