Sieve Analysis of Soil
Grain size analysis of soil with automatic gradation curve, D10, D30, D60, Cu, Cc, gravel–sand–fines and USCS classification.
Loading the calculator… (JavaScript is needed)
About this test
Enter the mass retained on each sieve to get the percent passing, the particle-size distribution curve, D10, D30 and D60, the coefficients of uniformity and curvature, and the USCS group for coarse-grained soils.
How it's calculated
- % passing = 100 − cumulative mass retained ÷ total × 100
- Dx by logarithmic interpolation of the gradation curve
- Cu = D60 ÷ D10; Cc = D30² ÷ (D10 × D60)
- Well graded: gravel Cu ≥ 4 / sand Cu ≥ 6 and 1 ≤ Cc ≤ 3
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.
Kataria Engineering & Consultancy Services (2026). Sieve Analysis of Soil [online calculator]. https://katariaengineering.com/tools/sieve-analysis-of-soil.html
Need certified laboratory testing?
Our lab tests soil, concrete, bricks, steel and aggregates and issues signed reports.