Live Demo — Material Cost Calculator
Enter the lamppost and battery box geometry and steel grade to get weight and estimated material cost instantly.
Material Cost Calculator
Free professional calculator for solar street light material costs. Input the lamppost (length, top/bottom diameter, wall thickness, flange size and thickness) and battery box (length, width, height, wall thickness) geometry, choose a material grade, and instantly compute the component weight in lb and kg together with the estimated material cost in USD. An interactive 3D preview of the lamppost and battery box is included.
Key Features
Lamppost Geometry Input
Enter length, top and bottom diameter, wall thickness, flange size and flange thickness in ft/in with automatic mm conversion.
Battery Box Geometry Input
Input battery box length, width, height and wall thickness in inches (mm auto-converted) to compute its metal volume.
Material Grade Selection
Pick from GR65, Q235, Q345, 304 Stainless Steel and Aluminum Alloy, each with the correct built-in material density.
Live Material Pricing
Automatic USD per ton material price reference that updates when you change the grade - ready for your supplier quote.
Weight & Cost Calculation
Compute pole and flange volumes, total weight (lb & kg) and the estimated material cost in USD for each component.
3D System Preview
View the lamppost and battery box structure in an interactive Three.js WebGL scene while reviewing your dimensions.
Technical Specifications
| Platform | HTML5 Web App | Android (via WebView) |
| Core Calculation | W = V × ρ; Cost = W × price (USD/ton); V_pole = π·L·((D₁+D₂)/2)·t |
| Input Units | ft / in (primary), mm (auto-converted) |
| Materials | GR65, Q235, Q345, 304 Stainless Steel, Aluminum Alloy |
| Material Density | 7.85 g/cm³ (carbon steel), 7.93 (304SS), 2.7 (aluminum) |
| Price Reference | $800 - $3,500 /ton (USD), grade-dependent |
| Components | Lamppost (pole + flange), battery box |
| Output | Weight (lb & kg) + Material Cost (USD) per component |
| Visualization | Three.js WebGL 3D scene |
| Industry Standards | EN 10025-2 / ASTM steel grades, glTF 2.0 |
Frequently Asked Questions
How is the lamppost weight calculated?
The pole is treated as a tapered hollow section with volume V_pole = π·L·((D_top+D_bottom)/2)·t, plus the flange plate V_flange = size² × flange thickness. Total volume multiplied by the material density gives the weight, then multiplied by the unit price gives the material cost.
What do the material prices represent?
They are built-in reference unit prices (USD/ton) for each grade: GR65 $1,000, Q235 $800, Q345 $900, 304 Stainless Steel $3,500 and Aluminum Alloy $3,000. Replace them with your latest supplier quotation for accurate estimates.
Can I enter metric dimensions?
Yes. Every dimension has a secondary mm input field that auto-converts from the imperial field (1 ft = 304.8 mm, 1 in = 25.4 mm). Either field can be edited and the other updates automatically.
Does it estimate the cost of the whole street light?
It calculates the lamppost and battery box material costs only. Other components such as the solar panel, luminaire and controller are not priced, so add their costs separately to build a full system BOM.
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