Angle Weight Calculator
This tool helps calculate the weight of steel angles based on their dimensions and material density.
How to Use:
- Enter the angle leg dimensions (A and B in mm)
- Enter the angle thickness (t in mm)
- Enter the angle length (L in meters)
- Enter the material density (default is 7850 kg/m³ for steel)
- Click “Calculate” to get the weight
Formula:
Weight = [(A + B – t) × t × L] × density
Where:
- A = first leg length (mm)
- B = second leg length (mm)
- t = thickness (mm)
- L = length (m)
- density = kg/m³
Example Calculation:
For a 50×50×5mm angle, 6m long:
[(50 + 50 – 5) × 5 × 6] × 0.000001 × 7850 = 22.39 kg
Would you like me to create an actual calculator with input fields that you can use? Or do you need this for a specific angle size calculation?
Angle Weight Calculator: How to Calculate Steel Angle Weight (Free Tool & Formulas)
Introduction
Steel angles are among the most commonly used structural materials in construction, fabrication, and engineering projects. Whether you’re a civil engineer, metal fabricator, or DIY enthusiast, knowing how to calculate the weight of steel angles is crucial for cost estimation, load calculations, and material procurement.
In this comprehensive guide, we’ll cover:
✅ What is a steel angle?
✅ Why calculate angle weight?
✅ Manual calculation methods
✅ Angle weight formulas
✅ Free online angle weight calculator
✅ Common steel angle sizes & weights
✅ FAQs about angle weight calculation
By the end, you’ll be able to quickly determine the weight of any steel angle using manual formulas or our free calculator.
1. What is a Steel Angle?
A steel angle (or angle iron) is an L-shaped structural steel bar with two legs of equal or unequal lengths. It is widely used in:
✔ Construction (beams, frames, supports)
✔ Machinery & equipment fabrication
✔ Bridges and infrastructure
✔ Shelving and storage systems
Types of Steel Angles:
- Equal Angles (ISA) – Both legs are the same length (e.g., 50×50×5 mm).
- Unequal Angles – Legs are different lengths (e.g., 100×75×6 mm).
2. Why Calculate the Weight of Steel Angles?
Knowing the exact weight of steel angles helps with:
✔ Material cost estimation (steel is priced per kg/ton)
✔ Structural load calculations (ensuring safety & compliance)
✔ Transportation & handling planning (crane capacity, logistics)
✔ Inventory management (stock tracking for suppliers)
A small error in weight calculation can lead to cost overruns or structural risks, so accuracy is essential.
3. How to Calculate Steel Angle Weight (Manual Method)
The weight of a steel angle depends on:
- Leg dimensions (A & B in mm)
- Thickness (t in mm)
- Length (L in meters)
- Density of steel (usually 7850 kg/m³)
Formula for Angle Weight Calculation
The standard formula is:
[
\text{Weight (kg)} = \left( \frac{(A + B – t) \times t \times L \times \text{Density}}{1000} \right)
]
Where:
- A = First leg length (mm)
- B = Second leg length (mm)
- t = Thickness (mm)
- L = Length (meters)
- Density = 7850 kg/m³ (for mild steel)
4. Free Online Angle Weight Calculator
To make calculations easier, use our free Angle Weight Calculator:
[🔗 Click Here to Use the Angle Weight Calculator]
Simply enter:
- Leg A (mm)
- Leg B (mm)
- Thickness (mm)
- Length (m)
- Material (steel, aluminum, etc.)
The calculator instantly provides the weight in kg or lbs.
5. Common Steel Angle Sizes & Weights (Reference Table)
| Angle Size (mm) | Thickness (mm) | Weight per Meter (kg/m) |
|---|---|---|
| 20×20 | 3 | 0.90 |
| 25×25 | 3 | 1.10 |
| 30×30 | 3 | 1.36 |
| 40×40 | 4 | 2.42 |
| 50×50 | 5 | 3.77 |
| 75×75 | 6 | 6.80 |
| 100×100 | 8 | 12.20 |
| 150×150 | 12 | 27.30 |
(Note: Weights may vary slightly based on steel density and manufacturing tolerances.)
6. Factors Affecting Angle Weight
- Material Density (Steel = 7850 kg/m³, Aluminum = 2700 kg/m³)
- Manufacturing Tolerances (Actual thickness may vary slightly)
- Surface Treatment (Galvanizing adds ~5% extra weight)
7. FAQs About Angle Weight Calculation
Q1. How do you calculate the weight of an unequal angle?
Use the same formula but with different A and B values.
Example:
For a 100×75×6 mm angle, 5m long:
[
\text{Weight} = \frac{(100 + 75 – 6) \times 6 \times 5 \times 7850}{1000} = 39.85 \, \text{kg}
]
Q2. How much does a 6-meter steel angle weigh?
Depends on dimensions. A 50×50×5 mm angle weighs ~22.37 kg, while a 100×100×10 mm angle weighs ~46.50 kg.
Q3. Does galvanizing affect angle weight?
Yes, galvanizing adds ~3-5% extra weight due to the zinc coating.
Q4. What is the weight of a 1-meter steel angle?
Check the table above or use the formula with L = 1 meter.
Q5. Can I calculate angle weight in pounds (lbs)?
Yes! Multiply the kg weight by 2.20462 to convert to lbs.
8. Conclusion
Calculating the weight of steel angles is essential for engineers, fabricators, and builders. You can use manual formulas or our free online Angle Weight Calculator for quick results.
Key Takeaways:
✔ Use Weight = [(A + B – t) × t × L × Density] / 1000
✔ Steel density = 7850 kg/m³
✔ Online calculators save time & reduce errors
✔ Always verify with manufacturer specs for precision
