The calculation of evaporation is required from a variey of water pools including swimming pools, water storage tanks and vessels, spent fuel pools in nuclear power plants, etc. The author has previously published formulas for the calculation of evaporation from occupied and unoccupied indoor swimming pools, which were shown to agree with all available test data. In this paper, evaporation frommany types of water pools and vessels is discussed and formulas are provided for calculating evaporation from them. These include indoor and outdoor swimming pools (occupied and unoccupied), spent nuclear fuel pools, decorative pools, water tanks, and spills. Look-up tables are provided for simplifying manual calculations.