Anchor Bolt Weight Calculator
Here’s a detailed table that provides all the essential information you need to know about calculating the weight of anchor bolts, including dimensions, material density, and formulas.
| Factor | Details |
|---|---|
| Formula for Weight Calculation | Weight (kg) = Volume (m³) × Density (kg/m³) |
| Volume of Bolt (Cylindrical Shape) | Volume (m³) = π × (Radius)² × Length (cylindrical volume) |
| Diameter of Bolt | Typically ranges from 6 mm to 100 mm or more (depending on application) |
| Length of Bolt | Can range from 50 mm to 1,000 mm or more |
| Radius Calculation | Radius = Diameter ÷ 2 (must convert diameter from mm to meters for volume calculation) |
| Material Density (kg/m³) | Steel: 7850 kg/m³ Aluminum: 2700 kg/m³ Copper: 8960 kg/m³ Brass: 8500 kg/m³ Titanium: 4500 kg/m³ |
| Units Used | Diameter and Length: millimeters (mm) Density: kilograms per cubic meter (kg/m³) |
| Common Materials Used | Steel: Most common for anchor bolts due to strength. Aluminum: Lighter but less strong. |
| Applications | Steel Bolts: Heavy-duty, construction applications. Aluminum Bolts: Used where weight savings are critical (aircraft, vehicles). |
| Example Bolt Sizes | M12 Steel Bolt (12mm Diameter, 100mm Length) M16 Steel Bolt (16mm Diameter, 150mm Length) |
| Approximate Weights of Common Bolts | M12 Steel Bolt (100mm Length): ~0.76 kg M16 Steel Bolt (150mm Length): ~1.6 kg |
| Other Factors Affecting Weight | Threading: Minor weight reduction due to material removed for threading. Moisture: May affect weight slightly in some environments. |
| Conversion of Units | 1 cubic meter = 1,000,000 cubic millimeters 1 kg = 2.20462 lb (to convert weight to pounds) |
Common Anchor Bolt Sizes and Weight Calculation:
| Bolt Size | Length (mm) | Diameter (mm) | Volume (m³) | Density (kg/m³) | Weight (kg) |
|---|---|---|---|---|---|
| M12 Steel | 100 mm | 12 mm | 0.000001131 m³ | 7850 kg/m³ | ~0.76 kg |
| M16 Steel | 150 mm | 16 mm | 0.000003015 m³ | 7850 kg/m³ | ~1.6 kg |
| M20 Steel | 200 mm | 20 mm | 0.000006283 m³ | 7850 kg/m³ | ~4.93 kg |
| M12 Aluminum | 100 mm | 12 mm | 0.000001131 m³ | 2700 kg/m³ | ~0.31 kg |
| M16 Aluminum | 150 mm | 16 mm | 0.000003015 m³ | 2700 kg/m³ | ~0.81 kg |
Explanation of Terms:
- Diameter: The thickness of the anchor bolt (measured across the cross-section), typically specified in millimeters (mm).
- Length: The total length of the bolt, also typically specified in millimeters (mm).
- Radius: Half the diameter. Used to calculate the volume of the bolt.
- Volume: The space occupied by the bolt, calculated as the volume of a cylinder.
- Density: The mass per unit volume of the material used to make the bolt. This varies depending on whether the bolt is made from steel, aluminum, brass, etc.
- Weight: The total mass of the bolt, derived by multiplying the volume of the bolt by the material's density.