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Orange County Government, Florida
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Residential Fertilizer Calculator

Fertilizer Calculator
Total Nitrogen is the first of the three large numbers on a fertilizer bag and is also listed on the label.

Bag Label

Click image above to enlarge for easier reading.
Find the percent of slow-release nitrogen on the label.
Orange County requires your fertilizers be 50% slow-release nitrogen.
Calculate length x width or try to visualize how many parking spaces or volleyball courts would fill your yard. A parking space is about 100 square feet and half a volley ball court is 1000 square feet.
Lawn Measurements
sq ft
This is how many pounds of fertilizer you need for your yard. Measure out the pounds with a scale or take the portion of fertilizer you need based on how many pounds are in one bag.