Units
Selecting a gauge auto-fills diameter. You can still override.
mm
Common tie wire: 14 AWG ≈ 1.628 mm, 16 AWG ≈ 1.291 mm, 18 AWG ≈ 1.024 mm.
Length input mode
m
m
Example: 0.30 m ≈ 12 inches per tie.
%
Galvanized typically ~0.5–2% extra by weight.
%
Roll / bundle planning
kg
Typical rebar tie wire roll ≈ 1.6 kg (~3.5 lb).
m
If both weight and length are set, length takes priority for roll count.
Results summary
Cross‑sectional area—
Computed from diameter: A = π·d²/4
Weight per meter—
Includes density and coating add‑on
Weight per foot—
Total length—
Total weight—
Waste / overage applied
Estimated rolls needed—
Ties per roll (if roll length set)—
Example data table
| AWG | Diameter (mm) | Length (m) | Weight (kg) | Weight (lb) |
|---|
Examples assume density from selection and current coating and waste settings.
Formula used
The calculator uses fundamental geometry and material density:
- Cross‑sectional area:
A = π·d²/4wheredis diameter (meters). - Weight per length:
Wm = A · ρwhereρis density (kg/m³). - Coating add‑on: multiply by
(1 + c/100), wherecis coating percent. - Waste / overage: multiply totals by
(1 + w/100), wherewis waste percent.
For roll planning by length, roll count is ceil(Ltotal / Lroll).
For roll planning by weight, count is ceil(Wtotal / Wroll).
How to use this calculator
- Select units, then choose an AWG gauge or enter a diameter.
- Pick the length mode: either total length, or ties × per‑tie length.
- Choose material density; apply coating add‑on and waste if needed.
- Optionally enter a roll weight or length for planning.
- Click Calculate to update results and the example table.
- Use Copy shareable link to preserve and share your inputs.
- Download a CSV or PDF report for takeoffs and ordering.
FAQs
14–18 AWG are widely used. 16 AWG and 18 AWG are typical on residential and light commercial projects; 14 AWG is stiffer and used where extra strength is preferred.
Annealed low‑carbon steel at about 7,850 kg/m³ is standard. Stainless is ~8,000 kg/m³. Galvanized wire is essentially steel with a small zinc coating add‑on (~0.5–2%).
This calculator treats coating as a small weight multiplier only. Coatings may affect corrosion resistance and handling, but structural capacity is dominated by the steel core.
AWG provides nominal diameters. Actual products may vary slightly by manufacturing tolerance and coating thickness. Where critical, measure with calipers and enter the measured diameter.
A common planning value is 12 in (≈0.30 m) per tie, but it depends on bar size, tie style, and installer preference. Enter your own typical length for better accuracy.
Enter either the roll length or roll weight. The calculator will divide project totals by the roll property and round up to the next whole roll.
Yes. Use Copy shareable link to encode all inputs into the URL so teammates can open and recalculate the same scenario quickly.
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