More Tools
Seed Calculator
How much seed do I need for my area?
With our seed calculator, you can quickly and easily find out how much grass, flower or vegetable seed you need for your area. Consider soil type, seed quality, and plan a small buffer to achieve the best results.

Learn more in the matching guide:

How much seed do I need for my area?

Whether it’s a lawn, flower meadow or vegetable patch – this guide shows you how to calculate the right amount of seed. Includes tips on soil quality, shade and buffer.
Good to know: Plan for a little extra seed on sandy or loose soils, as more seeds may be lost. A buffer of about 10% is recommended.

FAQ

How is the required seed amount calculated?
Our calculation takes into account your area size, seed type, soil condition and seed quality.
Why does soil type matter?
Sandy or poorly prepared soils require more seed because seeds are more easily lost or fail to germinate properly.
What does seed quality mean?
High-quality seeds often require less quantity because the germination rate is higher and plants establish faster.
Do I need to calculate differently for shade lawns?
Yes, shady areas usually require special shade-tolerant grasses with a slightly higher seeding rate.
How much buffer should I plan?
We recommend purchasing about 10% more seed to account for potential reseeding or loss.

Additional Tools

Discover all of our free online tools for home, garden, and DIY projects - just pick a tool and get started.
Electricity Usage Calculator House
Calculate your devices' electricity consumption and costs - quick, easy and fully customizable.
Mortgage Calculator House
Calculate your estimated monthly mortgage payment - including interest, loan term, and optional taxes or insurance.
Paint Calculator House
Calculate how much paint you need for your next painting project - including doors/windows and suggested bucket sizes.
Explore our tools