View all Clemson Precision Ag Calculators

Clemson Precision Agriculture Wordmark Clemson Lime Rate Calculator Icon

Clemson Lime Rate Calculator

The agricultural limestone rates calculated here are applicable for raising soil pH using results from the Clemson University Soil Testing Laboratory; the laboratory uses the Adams-Evans buffer method.
( for more)

This tool is for raising soil pH.
Looking for a tool to lower soil pH?
If yes, then click here

Soil Inputs

Lime Source Inputs

For calculating rates for a specific lime source,
select input mode:

Lime Rec. Output

Pure lime required:

Lime required for specified source:

The amounts of lime indicated on Clemson soil test results are based on a soil mixing depth of 8 inches.

For ornamentals and turf grass where no tilling will be performed,
  • Using this calculator: Select 4 inches for mixing depth; however, apply to the surface in two applications, once now and once in six months.
  • Using your Clemson soil test results: Apply half of the recommended lime requirement, and in 6 months, apply the remaining half.

APA Citation:
Kirk, K.R., Plumblee, M.T., Alford, S., and McAlhany, F. (2019). Clemson Lime Rate Calculator. Clemson University Precision Agriculture. Retrieved from

Disclaimer: This calculator is brought to you as a free service by Clemson University Cooperative Extension. The accuracy of the calculator is not guaranteed. User assumes all risks and liabilities from its use.

(c) 2019-2021 Clemson University Precision Agriculture