Use this Soil pH Calculator to estimate how much lime or sulfur may be needed to adjust your soil’s pH. Simply enter your current soil pH, target pH, soil type, and lawn or garden area to receive an estimated application rate.
Soil pH Calculator
Estimate how much garden lime or elemental sulfur to apply to move your soil toward the pH your plants prefer.
This is a planning estimate for the top 6 inches of soil. For best results, use a local laboratory soil test before applying large amounts.
Keep in mind that the results are estimates only. For the most accurate recommendations, test your soil with a certified soil testing laboratory, as organic matter, soil composition, and local conditions can affect the amount of amendment required. Regular soil testing helps maintain healthy soil and supports better plant growth.