๐ฑ Gardening
Lawn Fertilizer Calculator
Lawn fertiliser recommendations are given in pounds of nitrogen per thousand square feet, typically 0.5 to 1 pound per application. Dividing that by the first number on the bag gives the amount of product to spread.
How it works
Lawn area
Target nitrogen per 1,000 sq ft
Nitrogen (first bag number)
Bag weight
Price per bag
Nitrogen required
Fertilizer product needed
Bags needed
Cost
Application rate
Frequently asked questions
How do I use the Lawn Fertilizer Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.