Grass Seed Calculator
Measure your lawn and enter the sowing rate from your grass seed label.
Illustrative rate only; use your seed label. Convert lb per 1,000 ft² × 4.88243.
Your result
Seed needed
2.05 kg
Lawn area
55.74 m²
Bags needed
1 bags
Use the rate on your seed label
Lawn area equals length × width. Multiply square metres by grams per square metre, divide by 1,000 for kilograms and add your allowance. Divide by bag weight and round up. The default rate is an illustrative input, not a universal planting recommendation.
New lawns and overseeding may have different rates. Divide irregular lawns into rectangles and add the results. Seed species, soil and regional growing conditions matter; follow the product label.
Frequently asked questions
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