Conversion calculator

Plant nutrient Fertigation Yield and rate Water Concentrations Mass Pressure Temperature

Plant nutrient

P from/to P2O5

K from/to K2O

Ca from/to CaO

Mg from/to MgO

S from/to SO3

Ca from/to CaCO3

Na from/to Na2O

Na from/to NaCl

Fertigation

Nitrate (N)

Ammonium (N)

Phosphorus (P)

Potassium (K)

Calcium (Ca)

Magnesium (Mg)

Sulphur (S)

Boron (B)

Copper (Cu)

Iron (Fe)

Manganese (Mn)

Molybdenum (Mo)

Sodium (Na)

Zinc (Zn)

Chloride (Cl)

Bicarbonate (HCO3)

Yield and rate

kg-ha from/to lb-acre

kg-m3 from/to lb-bu

kg-ha from/to 60lb

kg-ha from/to 56lb

kg-ha from/to 48lb

kg-ha from/to cwt-acre

kg-ha from/to units-acre

kg-ha from/to bags-acre

L-ha from/to gallon-acre

L-ha from/to imperial gallon-acre

L-ha from/to US gallon-acre

m3-ha from/to gallon-acre

t-ha from/to lb-acre

t-ha from/to t-acre

Mg-ha from/to lb-acre

Mg-ha from/to ton-acre

meter-s from/to mile-h

Water

m3 from/to acre-in

m3/h from/to ft3/s

m3/h from/to gal/m

ha-m from/to acre-ft

ha-m from/to acre-in

ha-cm from/to acre-ft

Concentrations

cmol-kg from/to meq 100g

g-kg from/to %

mg-kg from/to ppm

mg-kg from/to ppb

Mass

g from/to lb

g from/to oz

kg from/to lb

kg from/to q

kg from/to ton

Mg from/to ton(US)

tonne from/to ton(US)

Pressure

MPa from/to atmosphere

MPa from/to bar

Pa from/to lb-ft

Pa from/to lb-in

Pound per square inch from/to bar

Temperature

K from/to C

C from/to F

Check out the latest agronomy advice

These articles will help you get even better results from your fertilisers by keeping you up to date with the latest agronomy advice from the Yara agronomists. If you don't find the advice you are looking for try looking in our full advice archive.

Three people walking through a Scottish farm
Walk your Fields
Throughout April and into May we’ll be focusing on optimising grass growth to meet the demands of our grazing cows so that we can maximise grazed grass in the diet.
Wheat Field
Help Late-Drilled Wheat Crops Catch Up
Did you know that up to 50% of wheat leaf samples show a deficiency in zinc,magnesium, copper and manganese?
Tractor on a field
Fertiliser application advice for first cut silage crops
Fertiliser applications for first cut silage have been really hampered by the weather since mid-March. This is a very worrying situation as these first cuts constitute a large part of next winters forage.
Carrots in a field
Maximising your vegetable crops’ potential with foliar nutrition
With the amount of rainfall we've had, a lot of the nutrients in the soil will potentially have leached away.
Agronomist in a field using a N-Tester
Spring 2024 Nutrition Management
There’s no getting away from the wet conditions many have faced this autumn and winter. We can now try and manage some of the issues this has caused via a robust spring nutrition strategy with the following steps
Agronomist and farmer in a field using a n-tester BT
Embrace Digital Tools to Improve Precision
No matter what industry you’re in, technology can be a game-changer. Our ancestors would be amazed at the tools we can use today to improve farming outcomes.
Farmer on a potato field
Establishing potatoes successfully
As with any other crop, good nutrition is key to securing a healthy potato crop, one that will return good yield and high quality and ultimately achieve a better profit margin for you.
Farmer fields in Scotland
Micronutrients: Micro but Mighty
Don’t be fooled by the name - micronutrients are NOT unimportant, we just need less of them than the macronutrients to achieve the best results.
Spreader on a field
Greater returns from first cut silage crops
Slurry applications in spring can make up most if not all of the NPK requirements of a 1st cut, so it’s important to do your sums before deciding on the rate and type of fertiliser needed in March.
Looking for something else ? Check our full advice archive