Send it to your customer as a real quote. Free for 14 days.
You just calculated: Fertilizer — 1 bags for 5000 sq ft
Built for pressure washing, lawn care, and snow-removal workflows. Mobile-first PWA.
Manage estimates, jobs, and customers in one field-service workspace.
Get Started FreeFree for 14 days • Cancel anytime
Quick answer: how much fertilizer per 1,000 sq ft
The standard rate is 1 lb of nitrogen per 1,000 sq ft per application. With a 20 percent nitrogen product like 20-5-10, you need 5 lbs of product per 1,000 sq ft to deliver that 1 lb of nitrogen. To find product amount, divide the desired nitrogen rate by the fertilizer nitrogen percentage. Apply 0.5 to 1.0 lb of nitrogen per 1,000 sq ft per application, across 4-5 applications per year. Never exceed 1 lb of nitrogen per 1,000 sq ft in a single application to avoid fertilizer burn. Nitrogen-heavy ratios such as 20-5-10 or 24-4-8 work best for general maintenance; use a higher-potassium winterizer like 22-0-14 in fall.
Applying the right amount of fertilizer is critical — too little and the lawn underperforms, too much and you risk burning the grass and polluting waterways. The key metric is pounds of nitrogen per 1,000 square feet.
For most lawns, apply 0.5 to 1.0 lb of nitrogen per 1,000 sqft per application, with 4-5 applications per year. To calculate how much product you need, divide the desired nitrogen rate by the fertilizer's nitrogen percentage.
| Grass Type | N lbs/1,000 sqft/yr | Applications | Best Season |
|---|---|---|---|
| Kentucky Bluegrass | 3 – 4 lbs | 4 – 5 | Fall |
| Tall Fescue | 2 – 3 lbs | 3 – 4 | Fall |
| Bermuda Grass | 3 – 5 lbs | 4 – 6 | Summer |
| Zoysia Grass | 2 – 3 lbs | 3 – 4 | Late Spring |
| St. Augustine | 3 – 4 lbs | 4 – 5 | Spring–Fall |
| Fine Fescue | 1 – 2 lbs | 2 – 3 | Fall |
The standard recommendation is 1 pound of nitrogen per 1,000 square feet per application. For a fertilizer with 20% nitrogen (like a 20-5-10), you'd need 5 pounds of product per 1,000 sqft to deliver 1 lb of nitrogen. Our calculator does this math automatically based on your lawn size and fertilizer analysis.
Most lawns benefit from 4-5 applications per year. Cool-season grasses (fescue, bluegrass) should be fertilized in early spring, late spring, early fall, and late fall. Warm-season grasses (bermuda, zoysia, St. Augustine) should be fertilized from late spring through early fall. Avoid fertilizing during extreme heat or drought.
For general lawn maintenance, a ratio heavy in nitrogen works best — such as 20-5-10 or 24-4-8. In spring, use a balanced starter fertilizer (like 10-10-10) for new lawns. In fall, use a winterizer with higher potassium (like 22-0-14) to strengthen roots. Our calculator recommends the right ratio based on your grass type and season.
Most lawn care professionals charge $50-$100 per application for a standard 5,000 sqft lawn. Pricing varies by region, but a common formula is $5-$12 per 1,000 square feet. Factor in fertilizer cost ($15-$40 per bag covering ~5,000-12,000 sqft), labor, and drive time. Many contractors sell 5-6 application programs for $250-$500 annually.
Spreader settings vary by model and fertilizer granule size. As a general guide: for broadcast spreaders, start at a medium-low setting and make two passes in perpendicular directions. For drop spreaders, use the manufacturer's recommended setting for your specific fertilizer. Our calculator provides estimated spreader settings based on your product and coverage needs.
Yes — over-fertilization causes fertilizer burn (brown patches), excessive growth requiring more mowing, increased thatch buildup, and environmental runoff. Never apply more than 1 pound of nitrogen per 1,000 sqft in a single application. Water immediately after applying to wash granules off grass blades. Our calculator prevents over-application by giving exact amounts.
Professional lawn fertilization typically costs $50 to $100 per application for a standard 5,000 square foot lawn. Most companies sell a full-season program of 5-6 applications for $250-$500 per year. The cost depends on lawn size, fertilizer type (granular vs. liquid), grass species, and whether weed control is included in the treatment. Larger properties of half an acre or more can run $150-$300 per visit.
If you are starting or running a lawn care business, accurate fertilizer pricing is essential for profitability. Our guide on how to start a lawn care business covers equipment costs, legal requirements, and pricing strategies. For a detailed financial breakdown including fertilizer program revenue projections, see our lawn care business plan template.
Fertilizer timing depends on whether you have cool-season or warm-season grass. Cool-season grasses (Kentucky bluegrass, tall fescue, perennial ryegrass) grow most actively in spring and fall. Apply the first round in early spring when soil temperatures hit 55°F, a second in late spring, then the most important applications in early fall and late fall. The fall feeding builds root reserves that carry the lawn through winter. Warm-season grasses (Bermuda, zoysia, St. Augustine, centipede) peak during summer heat. Start fertilizing after full green-up in late spring and continue every 6-8 weeks through early September.
For lawn care businesses managing dozens of properties, keeping track of which lawns need fertilizer and when is a real operational challenge. CrewNest lawn care software lets you schedule fertilizer applications per property, assign them to crew members, and track which round each customer is on so nothing falls through the cracks.
Lawn care professionals use this fertilizer calculator to bid jobs accurately and prevent costly material waste. Enter the property's square footage, choose the fertilizer analysis (N-P-K), and the calculator returns the exact number of bags you need, the cost per application, and recommended spreader settings. This eliminates guesswork when quoting multi-round fertilizer programs and ensures consistent results across every lawn on your route.
Pair it with our lawn mowing price calculator to build complete service packages that include both mowing and fertilization. Bundling services increases your revenue per customer and reduces churn. Ready to manage your fertilizer programs, schedule crews, and send invoices from one platform? Sign up for CrewNest free.
