Libreng Kasanayan sa Inhinyero
Kalkulador ng Density / Mass / Volume
Malutas ang anumang isa sa density, mass, o volume. 30+ material presets, shape-based volume calculator, buoyancy check, at multi-unit output.
ρ = m / V
30+ Materials
Shape Volume
Buoyancy
Results
Density ρ
—
Mass m
—
Volume V
—
Timbang (maraming yunit)
—
Tiyak na Gravity
—
Buoyancy sa Tubig
—
Mga Pangunahing Formula
Mga Formula ng Dami ng Hugis
Buoyancy
Isang object ay lumulutang kung ρ_object < ρ_fluid. Ang net submerged weight = m×g − ρ_fluid×V×g.
Praktikal na Halimbawa
Halimbawa — Steel hollow cylinder (pipa)
Given: OD=100mm, ID=80mm, Length=500mm, ρ=7850 kg/m³
V = π×(50²−40²)×500 = π×(2500−1600)×500 = 1,413,717 mm³ = 0.001414 m³
m = 7850 × 0.001414 = 11.1 kg = 24.4 lb
Weight in water: F_b = 1000 × 0.001414 × 9.81 = 13.87 N → submerged weight = 95.0 N
Database ng Density ng Materyales
| Material | kg/m³ | g/cm³ | lb/ft³ |
|---|---|---|---|
| Carbon Steel | 7,850 | 7.85 | 490 |
| Stainless 304 | 7,930 | 7.93 | 495 |
| Stainless 316 | 8,000 | 8.00 | 499 |
| Cast Iron (Gray) | 7,200 | 7.20 | 449 |
| Aluminum 6061 | 2,700 | 2.70 | 169 |
| Aluminum 7075 | 2,810 | 2.81 | 175 |
| Copper | 8,900 | 8.90 | 556 |
| Brass | 8,500 | 8.50 | 531 |
| Bronze | 8,800 | 8.80 | 549 |
| Titanium | 4,510 | 4.51 | 282 |
| Magnesium | 1,740 | 1.74 | 109 |
| Lead | 11,340 | 11.34 | 708 |
| Nickel | 8,908 | 8.91 | 556 |
| Gold | 19,300 | 19.30 | 1,205 |
| HDPE | 920 | 0.92 | 57 |
| PVC | 1,400 | 1.40 | 87 |
| PTFE (Teflon) | 2,200 | 2.20 | 137 |
| Concrete | 2,500 | 2.50 | 156 |
| Glass | 2,200 | 2.20 | 137 |
| Oak Wood | 600 | 0.60 | 37 |
| Water (20°C) | 1,000 | 1.00 | 62.4 |
| Seawater | 1,025 | 1.025 | 64.0 |
| Diesel Fuel | 870 | 0.87 | 54.3 |
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