One Point Proctor

One Point Proctor is a professional soil compaction calculator designed for accuracy, efficiency, and real-world field use. Built for geotechnical engineers, technicians, inspectors, and project managers, the app delivers fast, reliable, and repeatable compaction results with precision beyond traditional methods.

Whether working in the field or the lab, One Point Proctor helps you calculate, validate, and document compaction data with confidence.

Key Features

Advanced Proctor Calculations

Computes One Point Proctor values using refined algorithms
Provides higher accuracy compared to standard family curve methods
Ensures consistent and dependable results for compaction analysis

Oversize Correction

Automatically calculates corrected values for materials with oversized particles
Maintains compliance with industry practices and expectations

Sand Cone (Field Compaction)

Calculate dry density, moisture content, and field compaction percentage
Designed for fast and accurate field testing
Simplifies on-site density verification workflows
Smart Validation
Detects inconsistent or unrealistic inputs
Provides clear feedback to improve data accuracy
Reduces calculation errors and minimizes rework
Professional Results & Reporting
Clear, structured result presentation for all calculations
Ideal for field verification, lab testing, and QA/QC documentation
Helps standardize reporting across teams and projects
Built for Field and Lab Workflows
Clean, intuitive interface for fast data entry
Optimized for use on construction sites and in laboratories
Supports engineers, technicians, inspectors, and project managers
Subscription

The app includes a free trial period. After the trial ends, a subscription is required to continue accessing full features and calculations.

One Point Proctor provides accurate, efficient, and professional-grade compaction analysis—helping you make better decisions in the field and deliver reliable results every time.