Home / Engineering Tools / Soil Test Calculators
Soil Classification (USCS)
Classify soil to the Unified Soil Classification System (GW, SP, SM, CL, CH…) from grading and Atterberg limits.
Loading the calculator… (JavaScript is needed)
About this test
Enter gravel and fines percentages, Cu, Cc and Atterberg limits to get the USCS group symbol and name.
How it's calculated
- ASTM D2487 flow chart
Results are calculated from the values you enter using standard formulas. Download the PDF to keep a record. For certified testing, design or construction, talk to our engineers.
Need an engineer for your project?
Testing, design and construction across Azad Kashmir & Punjab. Call or WhatsApp us.