1. What is the Grass Seed Calculator?

The Grass Seed Calculator helps you determine how much grass seed you need for your lawn project in the UK, and estimates the cost in pounds. It calculates based on your lawn area and the coverage rate of your chosen seed mix.

2. How Does the Calculator Work?

The calculator uses a simple formula:

Where:

• \( Area \) — Your lawn area in square meters
• \( Coverage\ Rate \) — How much area 1kg of seed covers (typically 15-30 m²/kg)

Cost Calculation: The calculator also estimates cost at £20 per kg (average UK price for quality grass seed).

3. Importance of Accurate Calculation

Details: Proper seed quantity ensures good lawn coverage without waste. Too little seed results in patchy growth, while too much leads to competition and wasted money.

4. Using the Calculator

Tips: Measure your lawn area accurately. Check your seed packaging for its specific coverage rate (default is 25 m²/kg). For new lawns, use the higher seeding rate (lower coverage rate).

5. Frequently Asked Questions (FAQ)

Q1: What's a typical coverage rate for grass seed?
A: Most grass seeds cover 15-30 m² per kg. Fine lawns might be 20-25 m²/kg, while hard-wearing mixes might cover 15-20 m²/kg.

Q2: How do I measure my lawn area?
A: For rectangular areas: length × width. For irregular shapes, break into rectangles or use an online area calculator with your dimensions.

Q3: Should I buy extra seed?
A: It's wise to buy 10-15% extra to account for uneven distribution, birds, or patchy areas needing reseeding.

Q4: Why are UK prices used?
A: This calculator is tailored for UK users, with average UK seed prices and metric measurements.

Q5: When is the best time to sow grass seed?
A: In the UK, early autumn (September) is ideal, followed by spring (April-May), when soil is warm and moist.