Rebar Calculator | Rebar Quantity, Weight & Cost Calculator
Calculate rebar quantity, total rebar length, steel weight, spacing, and reinforcement cost for slabs, foundations, concrete floors, and construction projects.
Rebar Calculator
Rebar Calculator
A Rebar Calculator helps estimate reinforcing steel requirements for concrete slabs, foundations, driveways, footings, walls, columns, and construction projects. It calculates rebar quantity, spacing, total steel length, weight, and project cost.
What Is Rebar?
Rebar, short for reinforcing bar, is steel reinforcement placed inside concrete structures to increase tensile strength and improve structural durability.
How To Use
- Enter slab length.
- Enter slab width.
- Enter rebar spacing.
- Select bar diameter.
- Enter steel price per kilogram.
- Click Calculate.
- Review total length, weight, and cost.
Common Rebar Sizes
| Diameter | Weight (kg/m) |
|---|---|
| 8 mm | 0.395 |
| 10 mm | 0.617 |
| 12 mm | 0.888 |
| 16 mm | 1.58 |
| 20 mm | 2.47 |
| 25 mm | 3.86 |
Formula Used
Weight Per Meter = Diameter² ÷ 162
Total Weight = Total Length × Weight Per Meter
Total Cost = Total Weight × Price Per Kg
Benefits
- Accurate steel estimation
- Reduced construction waste
- Cost planning
- Structural reinforcement calculations
- Professional construction estimates
Applications
- Concrete slabs
- Driveways
- Foundations
- Footings
- Retaining walls
- Columns and beams
- Commercial construction
Final Thoughts
This Rebar Calculator provides a fast and accurate way to determine reinforcement requirements, steel weight, and project costs. It is ideal for contractors, engineers, builders, and DIY construction projects.
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