Fertilizer Calculator

Plant nutrients

Nutrigation

Rates and yield

Irrigation

Concentrations

Electrical conductivity

Flow rate

Weight

Pressure

Plant nutrients

Conversion between oxide or elemental nutrient form

P to P₂O₅

Elemental, P

Oxide, P₂O₅

K to K₂O

Elemental, K

Oxide, K₂O

Ca to CaO

Elemental, Ca

Oxide, CaO

Mg to MgO

Elemental, Mg

Oxide, MgO

S to SO₃

Elemental, S

Oxide, SO₃

S to SO₄

Elemental, S

Oxide, SO₄

N to NH₄

Elemental, N

NH₄ Amonium

N to NO₃

Elemental, N

NO₃ Nitrate

Nutrigation

Nutrient concentration in feeding solution

Nitrogen (N)

N mg/l (ppm)

N mmol/l

N Meq/l

Nitrate (NO₃ - N)

N mg/l (ppm)

N mmol/l

N Meq/l

Amonium (NH₄ - N)

N mg/l (ppm)

N mmol/l

N Meq/l

Phosphorus (P)

P mg/l (ppm)

P mmol/l

P Meq/l

Potassium (K)

K mg/l (ppm)

K mmol/l

K Meq/l

Magnesium (Mg)

Mg mg/l (ppm)

Mg mmol/l

Mg Meq/l

Calcium (Ca)

Ca mg/l (ppm)

Ca mmol/l

Ca meq/l

Sulfur (S)

S mg/l (ppm)

S mmol/l

S meq/l

Sulfite (SO₃)

SO₃ mg/l (ppm)

SO₃ mmol/l

SO₃ meq/l

Sulfate (SO₄)

SO₄ mg/l (ppm)

SO₄ mmol/l

SO₄ meq/l

Iron (Fe)

Fe mg/l (ppm)

Fe µmol/l

Zinc (Zn)

Zn mg/l (ppm)

Zn µmol/l

Manganese (Mn)

Mn mg/l (ppm)

Mn µmol/l

Copper (Cu)

Cu mg/l (ppm)

Cu µmol/l

Boron (B)

B mg/l (ppm)

B µmol/l

Silicon (Si)

Si mg/l (ppm)

Si mmol/l

Si meq/l

Chloride (Cl)

Cl mg/l (ppm)

Cl mmol/l

Cl meq/l

Sodium (Na)

Na mg/l (ppm)

Na mmol/l

Na meq/l

Bicarbonate (HCO₃)

HCO₃ mg/l (ppm)

HCO₃ mmol/l

HCO₃ meq/l

Rates and yield

Crop yield or fertilizers application by weight per area

Kilogram per hectare (kg/ha) to pound per acre (lb/ac)

Kilogram per hectare (kg/ha)

Pound per acre (lb/ac)

Tons per hectare (MT/ha) to pound per acre (lb/ac)

Tons per hectare (MT/ha)

Pound per acre (lb/ac)

Tons per hectare (MT/ha) to tons per acre (MT/ac)

Tons per hectare (MT/ha)

Tons per acre (MT/ac)

Tons per hectare (MT/ha) to short tons per acre (STN/ac)

Tons per hectare (MT/ha)

Short tons per acre (STN/ac)

Kilogram per hectare (kg/ha) to kilogram per Mu (kg/Mu)

Kilogram per hectare

Kilogram per Mu (kg/Mu)

Irrigation

Volume of water applied per given area

Millimeter (rainfall) to cubic meter per hectare (m₃/ha)

Millimeter (rainfall)

Cubic meter per hectare (m₃/ha)

Inch (rainfall) to US gallon per acre (gal/ac)

Inch (rainfall)

US gallon per acre (gal/ac)

Cubic meter per hectare (m₃/ha) to US gallon per acre (gal/ha)

Cubic meter per hectare (m₃/ha)

US gallon per acre (gal/ha)

Cubic meter per hectare (m₃/ha) to imperial gallon per acre (gal/ha)

Cubic meter per hectare (m₃/ha)

Imperial gallon per acre (gal/ha)

Liter per hectare (l/ha) to US gallon per acre (gal/ac)

Liter per hectare (l/ha)

US gallon per acre (gal/ac)

Liter per hectare (l/ha) to imperial gallon per acre (gal/ac)

Liter per hectare (l/ha)

Imperial gallon per acre (gal/ac)

Concentrations

The ratio of a substance in a solution or a mixture

Percent (%) to parts per million (ppm)

Percent (%)

Parts per million (ppm)

Kilogram per cubic meter (kg/m₃) to percent (%)

Kilogram per cubic meter (kg/m₃)

Percent (%)

Gram per kilogram (g/kg) to percent (%)

Gram per kilogram (g/kg)

Percent (%)

Gram per kilogram (g/kg) to parts per million (ppm)

Gram per kilogram (g/kg)

Parts per million (ppm)

Gram per liter (g/l) to percent (%)

Gram per liter (g/l)

Percent (%)

Milligram per kilogram (mg/kg) to parts per million (ppm)

Milligram per kilogram (mg/kg)

Parts per million (ppm)

Gram per cubic meter (g/m₃) to parts per million (ppm)

Gram per cubic meter (g/m₃)

Parts per million (ppm)

Milligram per liter (mg/l) to parts per million (ppm)

Milligram per liter (mg/l)

Parts per million (ppm)

Kilogram per liter (kg/l) to pound per US gallon (lb/gal)

Kilogram per liter (kg/l)

Pound per US gallon (lb/gal)

Gram per liter (gr/l) to pound per US gallon (lb/gal)

Gram per liter (g/l)

Pound per US gallon (lb/gal)

US ounce per US gallons (oz/gal) to milliliter per liter (ml/l)

US ounce per US gallons (oz/gal)

Milliliter per liter (ml/l)

US ounce per acre (oz/ac) to liter per hectare (l/ha)

US ounce per acre (oz/ac)

Liter per hectare (l/ha)

Electrical conductivity

Conversion between commonly used EC measurement units

Decisimens per meter (dS/m) to millisiemens per centimeter (mS/cm)

Decisimens per meter (dS/m)

Millisiemens per centimeter (mS/cm)

Microsimens per centimeter (μS/cm) to millisiemens per meter (mS/m)

Microsimens per centimeter (μS/cm)

Millisiemens per meter (mS/m)

Decisimens per meter (dS/m) to microsimens per centimeter (μS/cm)

Decisimens per meter (dS/m)

Microsimens per centimeter (μS/cm)

Flow rate

Volume of water applied in a specific time period

Liters per minute (l/min) to liters per hour (l/hr)

Liters per minute (l/min)

Liters per hour (l/hr)

Liters per hour (l/hr) to cubic meter per hour (m₃)

Liters per hour (l/hr)

Cubic meter per hour (m₃)

Liters per hour (l/hr) to cubic feet per hour (ft₃/hr)

Liters per hour (l/hr)

Cubic feet per hour (ft₃/hr)

Cubic meter per hour (m₃/hr) to cubic feet per hour (ft₃/hr)

Cubic meter per hour (m₃/hr)

Cubic feet per hour (ft₃/hr)

Liters per hour (l/hr) to US gallons per hour (gal/hr)

Liters per hour (l/hr)

US gallons per hour (gal/hr)

Liters per hour (l/hr) to imperial gallons per hour (gal/hr)

Liters per hour (l/hr)

Imperial gallons per hour (gal/hr)

Weight

Conversion between commonly used weight units

Kilogram (kg) to pound (lb)

Kilogram (kg)

Pound (lb)

Metric ton (MT) to short ton (STN)

Metric ton (MT)

Short ton (STN)

Gram (g) to ounce (oz)

Gram (g)

Ounce (oz)

Gram (g) to pound (lb)

Gram (g)

Pound (lb)

Pressure

Conversion between commonly used pressure units

Atmosphere (Atm) to bar

Atmosphere (Atm)

Bar

Megapascal (MPa) to atmosphere (Atm)

Megapascal (MPa)

Atmosphere (Atm)

Megapascal (MPa) to bar

Megapascal (MPa)

Bar

Pascal (Pa) to pound per square foot (lb-ft)

Pascal (Pa)

Pound per square foot (lb-ft)

Pascal (Pa) to pound per square inch (lb-in)

Pascal (Pa)

Pound per square inch (lb-in)

Pound per square inch (PSI) to bar

Pound per square inch (PSI)

Bar

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