Preset density at 20 °C in kg/m³. α is linear expansion (1/K).
Material & Temperature
Mass & Volume Inputs
Results
History Table
| Mode | Preset | Temperature (°C) | α (1/K) | Void % | Mass (kg) | Volume (m³) | Density (kg/m³) | Density (g/cm³) | Density (lb/ft³) | Note |
|---|
Formula Used
- Density: ρ = m / V
- Temperature adjustment: ρ(T) ≈ ρref / [1 + 3α (T − Tref)]
- Effective density with voids: ρeff = ρ · (1 − fvoid)
- Plate volume: V = L · W · t
- Solid cylinder volume: V = π (D/2)² · L
- Tube volume: V = π [ (Do/2)² − (Di/2)² ] · L
- Sphere volume: V = (4/3) π (D/2)³
Notes: α is the linear expansion coefficient. For small ΔT, volumetric expansion ≈ 3αΔT.
How to Use
- Select Calculation Mode depending on which unknown you need.
- Choose a Glass Type Preset or keep Custom and set ρ and α.
- Set temperature values or uncheck to ignore temperature adjustment.
- Enter mass directly, and volume directly or via Geometry dimensions.
- Press Compute. Review results in SI and Imperial units.
- Use Add to Table to record scenarios. Export with CSV/PDF.
Example Data Table (Typical Values @20 °C)
| Glass Type | Density (kg/m³) | Density (g/cm³) | α (1/K) |
|---|---|---|---|
| Soda Lime | 2500 | 2.50 | 9.0×10⁻⁶ |
| Borosilicate | 2230 | 2.23 | 3.3×10⁻⁶ |
| Fused Silica | 2200 | 2.20 | 0.55×10⁻⁶ |
| Aluminosilicate | 2600 | 2.60 | 5.0×10⁻⁶ |
| Lead Glass | 3100 | 3.10 | 8.0×10⁻⁶ |
FAQs
Soda lime glass is common for windows and facades. A typical density near room temperature is about 2500 kg/m³ (2.50 g/cm³).
Slightly. Density decreases with temperature due to thermal expansion. For small ΔT, volumetric change ≈ 3αΔT. The effect is modest at common ambient temperatures.
Tempering changes residual stresses, not the bulk composition. The density remains essentially the same as the base glass of the same composition.
Approximations using simple shapes work for design estimates. For high accuracy, measure displacement volume or use CAD integration of the actual geometry.
Use it for cellular/foam glasses, laminates with interlayers, or assemblies with air gaps. It reduces effective density: ρeff = ρ · (1 − fvoid).
Yes. Choose Geometry → Plate, enter length, width, and thickness. With ρ set, the tool computes volume and mass automatically in mass mode.
Lengths: mm, cm, m, in, ft. Volume: m³, L, cm³, in³, ft³. Mass: g, kg, lb. Density outputs include kg/m³, g/cm³, and lb/ft³.
Conversions & Helpers
- 1 L = 1e−3 m³ = 1000 cm³
- 1 in = 25.4 mm; 1 ft = 0.3048 m
- 1 kg = 2.20462 lb
- 1 g/cm³ = 1000 kg/m³
- 1 lb/ft³ ≈ 16.0185 kg/m³
Tip: Use Add to Table to build a scenario log before exporting.