Oxide to Elemental NPK Conversion

Convert oxide nutrient values to their elemental equivalents

NPKS — Primary nutrients

N — Nitrogen (oxide %)

Nitrogen (elemental) % —

P₂O₅ — Phosphorus (oxide %)

Phosphorus (elemental) % —

K₂O — Potassium (oxide %)

Potassium (elemental) % —

SO₂ — Sulfur dioxide (oxide %)

Sulfur (elemental) % —

SO₃ — Sulfur trioxide (oxide %)

Sulfur (elemental) % —

SO₄ — Sulphate (oxide %)

Sulfur (elemental) % —

Trace elements

B₂O₃ — Boron (oxide %)

Boron (elemental) % —

CaO — Calcium (oxide %)

Calcium (elemental) % —

CuO — Copper (oxide %)

Copper (elemental) % —

Cu₂O — Copper (oxide %)

Copper (elemental) % —

FeO — Iron (oxide %)

Iron (elemental) % —

Fe₂O₃ — Iron (oxide %)

Iron (elemental) % —

Fe₃O₄ — Iron (oxide %)

Iron (elemental) % —

MgO — Magnesium (oxide %)

Magnesium (elemental) % —

MnO — Manganese (oxide %)

Manganese (elemental) % —

MnO₂ — Manganese (oxide %)

Manganese (elemental) % —

Mn₂O₃ — Manganese (oxide %)

Manganese (elemental) % —

MoO₃ — Molybdenum (oxide %)

Molybdenum (elemental) % —

ZnO — Zinc (oxide %)

Zinc (elemental) % —

Enter the oxide value from the product label — the elemental equivalent updates as you type. A guide only.