Lawn Size Calculator
Calculate rectangular lawn area in square feet, square yards and acres.
How to Use the Lawn Size Calculator
Enter the lawn dimensions to calculate total lawn area for planning grass, seed, fertilizer or irrigation coverage.
Practical Example
A lawn measuring 60 feet by 40 feet covers 2,400 square feet.
Factors That Affect the Result
Irregular borders, garden beds, paths, trees and other non-grass areas can reduce usable lawn area, so measure separate sections when needed.
Frequently Asked Questions
Can I calculate multiple lawn sections?
Yes. Calculate each section and add the areas together.
Should I include flower beds?
No, exclude areas where lawn material will not be used.
Can I use decimal measurements?
Yes, decimals can improve accuracy for partial feet.
Related Tools
Estimating Lawn Size
Lawn size is the planted ground area, not necessarily the full lot size. Break irregular yards into simple shapes, calculate each area and subtract patios, buildings, paths or beds that will not receive turf.
The result can support seed, fertilizer, sod and irrigation planning, but product coverage rates and waste still matter. For sod, roll dimensions and cutting can increase the purchase quantity. For seed or fertilizer, follow the product’s application rate and avoid assuming that more material than recommended will improve the result.