The dairy manure storage cost calculator help farms perform a partial budget of an impermeable flexible cover and flare on their dairy farm system. The farm inputs needed include the number of cows and heifers whose manure go into the storage, the surface area of the storage, and the farms manure spreading costs. The water excluded from the storage can be estimated for NYS by determining the average annual precipitation and subtracting the average annual evaporation shown on the illustration included. The current cover and flare costs will need to be estimated. An interest rate and cover life can be chosen and entered. If a grant will be used a negative additional capital cost can be entered. If carbon credits are anticipated the calculator will estimate the metric tons of carbon dioxide eq that can be captured and combusted. The calculation will provide the estimated total capital cost, the average annual cost over the lifetime, the annual average precipitation avoided, the average annual land application savings as well as an estimate of the potential carbon credits. There may be an additional benefit from nitrogen savings under the cover and protection from extreme rain events. Annual O&M costs for the cover and flare or for the verification of carbon credits are not considered.