Sod Calculators turns the measurements of a lawn into the numbers a sod farm, garden center or seed bag asks for: square feet, rolls and slabs, pallets, pounds of seed, pounds of fertilizer, gallons of water and rolls of turf.
How we work out the numbers
Every calculator shows its formula on the page, and the scorecard under each one repeats the math for your own inputs, so you can check it with a pencil.
- Area comes from simple geometry: length × width, 3.1416 × radius², and base × height ÷ 2.
- Sod is area plus a cutting allowance, divided by the piece size and the pallet size. Both sizes are editable because farms differ.
- Seed and fertilizer rates are given in pounds per 1,000 square feet, the way labels and extension guides give them. Seeding rates are shown as typical ranges, and we tell you to use the rate on your own bag.
- Water uses the fact that one inch of water over one square foot is 0.623 US gallons.
What we don’t do
- We don’t sell sod, seed, fertilizer or turf, and we don’t take payment from anyone who does.
- We don’t publish prices or national averages. Sod and turf prices vary too much by region, season and variety, so the calculators use the price from your own quote.
- We don’t recommend specific brands or companies.
Accuracy
The results are estimates. Piece sizes, pallet sizes, seed rates and product analyses vary, and real lawns are never perfect rectangles. Confirm quantities with your supplier and follow the product label before you buy or apply anything. If you spot a mistake on the site, please tell us through the contact page.