比重转换器 — 公式

Specific Gravity

Specific Gravity = Density of Substance / Density of Water

Since water density is 1 g/cm³ (or 1000 kg/m³ at 4°C), specific gravity is numerically equal to density in g/cm³.

Quick Conversions

  • kg/m³ = SG x 1,000
  • g/cm³ = SG x 1
  • lb/ft³ = SG x 62.428
  • lb/gal = SG x 8.345

    • 计算示例

    Convert SG 1.025 (seawater).

    1. kg/m³ = 1.025 x 1000 = 1025
    2. g/cm³ = 1.025
    3. lb/ft³ = 1.025 x 62.428 = 63.99
    4. lb/gal = 1.025 x 8.345 = 8.554