Lawn Fertilizer Calculator
Calculate how much fertilizer your lawn needs. Understand fertilizer types, application rates, and coverage area for optimal lawn care results.
Step 1: Lawn Details
Understanding Lawn Area
Accurate lawn area measurement is crucial for proper fertilizer application. Measure your lawn’s length and width, then multiply to get square footage. For irregular shapes, break into rectangles.
Step 2: Fertilizer Details
About Fertilizer Numbers
The three numbers on fertilizer bags represent N-P-K ratio: Nitrogen (leaf growth), Phosphorus (root development), and Potassium (overall health). Choose based on your lawn’s specific needs.
Fertilizer Calculation Results
Total Fertilizer Needed
Fertilizer Product Comparison
| Fertilizer Type | N-P-K Ratio | Coverage (1000 sq ft) | Bag Price | Cost per Application |
|---|
Fertilizer Cost Analysis
Fertilizer Calculation Formula
Fertilizer Needed = (Lawn Area ÷ 1000) × Application Rate
The amount of fertilizer needed is calculated by dividing your lawn area by 1000 square feet, then multiplying by the recommended application rate for your specific fertilizer type.
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