Compute specific weight γ = ρg from density and gravitational acceleration for gravity load estimation in geotechnical and structural work.
单位体积的重量(重度)。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Specific weight | gamma = rho · g, where rho is density and g the acceleration of free fall | ISO 80000-4:2019, Quantities and units - Part 4: Mechanics |
| Units | The unit of specific weight is N/m^3 | ISO 80000-4:2019, Quantities and units - Part 4: Mechanics |
| Standard acceleration of free fall | g_n = 9.80665 m/s^2, the conventional international value | BIPM, The International System of Units (SI Brochure, 9th ed., 2019) |
| Distinction from density | Specific weight includes gravity and varies with location; density is intrinsic | ISO 80000-4:2019, Quantities and units - Part 4: Mechanics |