Excavation Volume Calculator

Earthwork Volume Calculator

Formula for calculating the volume of a trench with vertical walls:

V = a * H * L

Volume increase factor of soil after excavation:

  • Loose, uncompacted -1
  • Wet sand - 1.2
  • Loose sand, - 1.1
  • Loam and fine gravel - 1.3
  • Heavy clay - 1.4

Formula for calculating the volume of a trench with slopes:

V = ( a1 + a2 ) / 2 * H * L

Volume increase factor of soil after excavation:

  • Loose, uncompacted -1
  • Wet sand - 1.2
  • Loose sand, - 1.1
  • Loam and fine gravel - 1.3
  • Heavy clay - 1.4

Formula for the area of an equilateral triangle through the radius of the circumscribed circle:

where R — radius of the circumscribed circle.

V = 3.14 * ( ( D1 + D2) / 2 )2 / 4 * H Loose sand, from 1.05 to 1.15. Wet sand, from 1.1 to 1.25. Loam and fine gravel, from 1.2 to 1.35. Heavy clay, from 1.35 to 1.5.
Invalid input
Invalid input
Enter dimensions in meters:
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input
Invalid input

Excavation Volume Calculator

In many construction and installation projects—whether installing essential utilities such as water supply systems, gas pipelines, cable conduits, or sewage networks, or when forming strip or monolithic foundations—it is vital to accurately determine the excavation volume. Rather than relying on manual computations, our online Excavation Volume Calculator swiftly and professionally computes the required earthwork quantities. Simply select the appropriate parameters and enter the dimensions into the provided fields. This user-friendly tool not only calculates the volume of soil to be removed but also accurately determines the quantity for backfilling.

Our online calculator is an indispensable resource for estimating labor, material usage, and overall earthmoving costs when excavating pits or trenches. It provides the flexibility to compute volumes with or without slopes—if the slopes are not present, simply use the same values for both the top and bottom dimensions. This practical instrument aids in determining both the precise volume of excavated soil and the corresponding backfill needed.

Calculator Features

This interactive online tool offers an intuitive interface with options for selecting parameters and entering data, along with dedicated sections that present the calculated results. It effectively computes the excavation volume by establishing the exact amount of soil to be removed and replaced, making it ideal for a wide range of earthworks and construction applications.

Key operations include:

  • Determining the volume of a trench with vertical walls;
  • Calculating the volume of a circular well with sloped sides;
  • Evaluating the excavation volume of a pit with inclines—the Excavation Volume Calculator delivers accurate results in seconds, which can be saved as a PDF or printed with a single click.

Operating Principle

To generate the result, simply follow these steps in the calculator’s menu:

  1. Select the type of trench or pit (this will reveal a schematic diagram, the corresponding calculation formula, and adjustment coefficients for different soil types in the information panel);
  2. Choose the soil category;
  3. Enter the measurements for the chosen excavation project in meters;

Once all parameters are input, the calculator automatically displays the numerical outcomes in cubic meters—including the pit volume, the volume of removed soil, the overall excavation volume, and the corresponding backfill volume. Calculations for trenches with inclined walls are seamlessly integrated.

Reference

Trench/Pit – An open excavation prepared in the ground for constructing foundations, bases, pipelines, and other engineering structures. The volume of the excavation and the excavated soil is determined using standardized formulas.

Well – A vertical excavation or depression in the soil, primarily designed as a hydraulic structure for extracting water and, at times, used for installing sewers and septic tanks.

Soil – A complex, multicomponent medium consisting of rock particles, sediments, and anthropogenic materials. It forms a critical part of the geological environment and is essential in engineering and economic projects.

See also: