Lime Requirements Calculator

Calculate How Much Lime Your Lawn Needs

Lime Application Calculator

Recommended Approach for Lime Application

For best results when adjusting soil pH:

  • Start with a soil test to determine your current pH and soil type
  • Apply lime in two smaller applications, 6–12 months apart, rather than one heavy dose
  • Re-test soil after the first application to check progress before applying more
  • Use fast-acting lime (like Solu-Cal) for quicker results in home lawns

This staged approach helps avoid over-liming and ensures a healthy balance of nutrients for your lawn or garden.

When Should You Retest Your Soil?

After applying lime, give it time to work before retesting the pH:

  • Standard lime: Wait at least 6 months before retesting
  • Solu-Cal or fast-acting lime: Retest after 3 to 6 months
  • Always use the same type of soil test for accurate comparison

Retesting too soon can give misleading results. Let the lime work through the soil before applying more.