Water Density and Specific Weight Calculator
This calculator computes water properties using IAPWS-95 data at 1 atm (0–150°C) with pressure corrections.

Capabilities:
- Density in multiple units (kg/m³, g/cm³, lb/ft³, etc.)
- Specific weight in multiple units (N/m³, kN/m³, lbf/ft³, etc.)
- Plots density or specific weight vs. temperature

Temperature Range: 0°C to 150°C (liquid)
Pressure Range: 0–1000 MPa (~9860 atm); accurate up to 100 MPa, approximate beyond
Limitations: Simplified pressure correction; full IAPWS-95 equations needed for high precision above 100 MPa.

Data Source:
Wagner, W., & Pruß, A. (2002). J. Phys. Chem. Ref. Data, 31(2), 387–535.