Tip: choose "ft-in" to enter feet and inches separately.
Choose material preset or enter custom density. (Default: Copper = 8.96 g/cm³)
Currency affects formatting; numbers won't be auto-converted between currencies.
Accurate wire weight measurement is crucial for industries ranging from construction to electronics. Knowing the exact weight allows you to estimate transport costs, plan installations, and predict structural loads.
This guide explores every detail you need to calculate wire weight with confidence. Whether you are a hobbyist or a professional, understanding these calculations helps in both cost planning and safety.
Wire weight is determined by the wire’s length, diameter, and material density. These three parameters combine to define the volume and, consequently, the overall mass of the wire.
A thicker wire with higher density material will always weigh more than a thinner wire of the same length.
The weight of a cylindrical wire can be derived using its geometric properties. The following formula provides a direct method to calculate it:
Weight = π × (Diameter / 2)² × Length × Density
Here, the diameter and length must be in consistent units, and the density should match the unit system for accurate results.
Below are five examples illustrating real-world calculations using different materials and measurements.
Even small changes in measurement units can lead to significant differences in the result. Always double-check your units before entering them into the calculator.
Temperature can slightly expand or contract wire dimensions, though in most cases this is negligible for everyday applications.
The table below lists popular materials and their average densities used in wire production.
| Material | Density (g/cm³) | Application |
|---|---|---|
| Copper | 8.96 | Electrical wiring |
| Aluminum | 2.70 | Power cables |
| Steel | 7.85 | Construction |
| Brass | 8.40 | Decorative wiring |
| Silver | 10.49 | High-end electronics |
| Gold | 19.30 | Luxury electronics |
| Titanium | 4.50 | Aerospace |
These densities are averages and may vary slightly depending on purity and manufacturing processes.
Converting between units is essential for accurate calculations. The following table provides quick references for common conversions.
| From | To | Factor |
|---|---|---|
| 1 m | cm | 100 |
| 1 m | mm | 1000 |
| 1 ft | m | 0.3048 |
| 1 in | m | 0.0254 |
| 1 kg | lb | 2.20462 |
| 1 g/cm³ | kg/m³ | 1000 |
| 1 lb/ft³ | kg/m³ | 16.018 |
Always ensure that you convert all inputs into the same measurement system before applying the formula.
Estimating the cost requires knowing the price per kilogram. The table below shows sample costs for various materials assuming $5 per kilogram.
| Material | Weight (kg) | Cost ($) |
|---|---|---|
| Copper | 1 | 5 |
| Aluminum | 1 | 5 |
| Steel | 1 | 5 |
| Brass | 1 | 5 |
| Silver | 1 | 5 |
| Gold | 1 | 5 |
| Titanium | 1 | 5 |
Always measure wire length after cutting to ensure accuracy. A small miscalculation can lead to unexpected cost overruns.
When calculating cost, include a small allowance for waste material, especially when purchasing large quantities.