Fertilizer Cost per Nutrient Calculator
Turn package price, package weight and nutrient analysis into cost per kilogram of the selected nutrient.
Compare fertilizer cost per unit of nutrient
Turn package price, package weight and nutrient analysis into cost per kilogram of the selected nutrient.
How the fertilizer cost per nutrient calculator works
The nutrient contained in a package equals package weight multiplied by the nutrient analysis percentage. Package price divided by nutrient kilograms gives cost per kilogram of nutrient. The target section reverses the same relationship to estimate product quantity and cost for a chosen nutrient requirement.
When to use this farm calculation
This is useful when two fertilizer products have different concentrations or package sizes and shelf price alone is misleading. Comparing cost per kilogram of the nutrient you actually need gives a more consistent economic view.
Inputs, units and assumptions
Fertilizer labels may report nitrogen as N but phosphorus and potassium as P₂O₅ and K₂O equivalents depending on the market. Compare like with like, and do not treat a blended fertilizer as if the other nutrients have zero value.
Practical example
A 50 kg bag at 46% nutrient contains 23 kg of that nutrient. If the bag costs ₹1,800, the nutrient cost is about ₹78.26 per kg before application or transport costs.