Feet of Water to KSM Calculator Feet of Water to KSM Calculator Convert pressure from feet of water to kilogram-force per square meter using: \[ 1\,\text{ftH}_2\text{O} \approx 303.9\,\text{kgf/m}^2 \] * Enter the pressure in feet of water. Pressure in Feet of Water (ftH₂O): Convert to kgf/m² (KSM) Conversion Result— kgf/m² Reset
