Calculate how much grass seed and how many bags a lawn needs.
Grass seed is commonly priced by the pound spread per 1000 square feet, so the lawn footprint converts to total pounds and then to whole bags. Overseeding a new or patchy lawn only pays when the seed meets the soil, so buying the right quantity matters for coverage.
Lawn Seed Coverage
Seed = lawn area ÷ 1000 x seed rate; bags = seed ÷ bag weight
Seed = lawn area ÷ 1000 x seed rate; bags = seed ÷ bag weight Grass seed is commonly priced by the pound spread per 1000 square feet, so the lawn footprint converts to total pounds and then to whole bags.
Overseeding a new or patchy lawn only pays when the seed meets the soil, so buying the right quantity matters for coverage.
This calculator takes 3 inputs: Lawn area, Seed rate, Bag weight. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.