Binding Wire Calculator (Rebar Tying)
Kilograms of 18-gauge binding wire from the tonnage of reinforcement steel being tied.
Slabs and rafts eat the most wire — many small bars means many intersections. Soft annealed 18 SWG (~1.2 mm) is the site standard; every crossing on a slab gets tied, not alternate ones, near edges.
Formula
Binding Wire Calculator (Rebar Tying) is a free binding wire calculator for civil engineers, contractors and quantity surveyors — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Binding Wire Calculator (Rebar Tying)
Kilograms of 18-gauge binding wire from the tonnage of reinforcement steel being tied. The calculation implements wire = steel tonnage × rate (8–13 kg/t by bar mix) (CPWD analysis of rates — reinforcement items). Slabs and rafts eat the most wire — many small bars means many intersections. Soft annealed 18 SWG (~1.2 mm) is the site standard; every crossing on a slab gets tied, not alternate ones, near edges.
How to use Binding Wire Calculator (Rebar Tying)
- 1Enter Reinforcement steel in t.
- 2Enter Wire per tonne of steel in kg/t (8 kg/t heavy bars · 12+ kg/t slabs with small bars).
- 3Read Binding wire, 25 kg coils instantly — no submit button needed.
- 4Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Binding Wire Calculator (Rebar Tying)?
- ✓Implements the standard formula — wire = steel tonnage × rate (8–13 kg/t by bar mix)
- ✓Reference cited on-page: CPWD analysis of rates — reinforcement items
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Binding Wire Calculator (Rebar Tying) use?+
It computes wire = steel tonnage × rate (8–13 kg/t by bar mix), per CPWD analysis of rates — reinforcement items. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Slabs and rafts eat the most wire — many small bars means many intersections. Soft annealed 18 SWG (~1.2 mm) is the site standard; every crossing on a slab gets tied, not alternate ones, near edges.
Does it include wastage?+
Yes — standard wastage/bulking factors are built in and stated in the formula line, so the quantity is an orderable number, not a bare geometric volume.
Is the Binding Wire Calculator (Rebar Tying) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
Related Engineering tools
Reynolds Number Calculator
Compute Re from density, velocity, pipe diameter and viscosity — with instant laminar/turbulent classification.
● LiveLaminar vs Turbulent Flow Classifier
Classify hydraulic-oil or process-fluid flow regime from kinematic viscosity, line velocity and tube bore.
● LiveBernoulli Equation Solver
Solve downstream pressure between two points from velocities, elevations and fluid density (ideal, lossless).
● Live