Marine Calculators
Boating, sailing, fishing and marine systems
4 calculators in this category
Anchor Chain Calculator
Calculate the required anchor rode length from water depth, tide range, and weather conditions. Get scope ratios and chain-to-rope mix for safe anchoring.
Nautical Distance Calculator
Calculate the great-circle distance in nautical miles between two coordinates using the Haversine formula. Plan ocean passages with accurate route distances.
Fish Pond Stocking Calculator
Calculate how many fish to stock in your pond based on surface area and carrying capacity. Get species mix ratios for bass, bluegill, catfish, and trout ponds.
Boat Winterization Calculator
Calculate antifreeze volumes for engine, water systems, and tanks for boat winterization. Estimate shrink wrap material and total winter storage costs.