Use the form below to calculate your pond’s size Shape of PondSquare / RectangleCircle / OvalLength of Longest Side (# of feet)Length of Shortest Side (# of feet)Diameter of Pond (# of feet)Measure the distance across the pond. If your pond is not an even circle, take measurements from multiple spots and average them together. Average Depth of Pond (#of feet)Measure the depth in at least 3 places. For deeper ponds, try using a weighted plum line to take measurements from a boat. Circular Pond Volume in GallonsRectangular Pond Volume in GallonsRecommended Dosage of Nualgi Ponds in MillilitersRecommended Volume of Water to Dilute With (in Liters)Recommended Volume of Water to Dilute With (in Ounces)Send yourself an email with this info? Enter your email address to have your dosage instructions sent to your inbox.Less than 4ml per week cost per weekIf less then 4ml per week we recommend the 60 ml.Less than 8ml per week cost per weekif less then 8ml per week we recommend the 125 ml.8ml - 16 ml per week cost per weekif 8ml - 16 ml per week we recommend the 250 ml.Greater than 16 ml < 32 per week cost per week16 ml -32ml per week we recommend the 500 ml.Greater than 32 ml per week cost per weekif greater than - 32 ml per week we recommend the 1000 ml.125ML125ml variation ID250ML250ml variation ID500ML500 ml variation ID60ML60 ml variation ID1L variation ID1LCommentsThis field is for validation purposes and should be left unchanged. Search Our Site Search for: Pond Management ResourcesSpring Pond Opening Tips Summer Pond Care Guide Winter Pond Care Guide Remove String Algae in Pond Prevent New Pond Syndrome Koi Care for Summer Blue Green Algae Signs UV Pond Filter Pros & Cons Pond Plants for Algae Control Categories Algae Control Case Study Koi & Water Garden Events Nualgi Community Pond Maintenance Resources & Advice Pond Poll