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USCS Unified Soil Classification & Plasticity Chart Calculator

Easily calculate and compute uscs unified soil classification & plasticity chart calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
22 group symbol

USCS Group Classification

USCS Group Classification

22 group symbol

Plasticity Index P I

22

A Line P I Number

16.1

Uscs Group Symbol

CL

Uscs Description

Lean Clay - Low Plasticity Clay

22 — group symbol

Calculation Breakdown

  1. Applied FormulaClassifies fine-grained soils into USCS categories (CL, CH, ML, MH) using Liquid Limit (LL), Plastic Limit (PL), and Casagrande's empirical A-line equation.\text{PI} = \text{LL} - \text{PL}, \quad \text{PI}_{\text{A-line}} = 0.73(\text{LL} - 20)

USCS Soil Classification Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.05.5111722USCS Group Classification

What Is the USCS Unified Soil Classification & Plasticity Chart Calculator?

This tool computes uscs unified soil classification & plasticity chart calculator with high precision arithmetic.

How Does the USCS Unified Soil Classification & Plasticity Chart Calculator Work?

Classifies fine-grained soils into USCS categories (CL, CH, ML, MH) using Liquid Limit (LL), Plastic Limit (PL), and Casagrande's empirical A-line equation.

USCS Unified Soil Classification & Plasticity Chart Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

PI=LL−PL,PIA-line=0.73(LL−20)\text{PI} = \text{LL} - \text{PL}, \quad \text{PI}_{\text{A-line}} = 0.73(\text{LL} - 20)

Classifies fine-grained soils into USCS categories (CL, CH, ML, MH) using Liquid Limit (LL), Plastic Limit (PL), and Casagrande's empirical A-line equation.

How to Use the USCS Unified Soil Classification & Plasticity Chart Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

USCS Unified Soil Classification & Plasticity Chart Calculator Example

Input Values:

liquidLimitLL:42
plasticLimitPL:20
percentPassingNo200:75
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required group symbol.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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