Wolfram|Alpha has oceanographic calculators. Solve problems related to ocean properties, the δ-13-C or δ-18-O value, the δ-18-O change vs. temperature change, the δD value, the Froude–Krylov force, sound absorption in seawater, the freezing point or index of refraction of seawater, periodic wave energy density, random wave energy density, wave power, oxygen saturation and the Ekman number.
