Construction calculators » Wall plastering calculator

Wall plastering calculator – how to calculate the consumption per square meter

Total wall length m
Wall height m
Layer thickness mm
Number of wall openings
Reserve coefficient %
1st opening
Length mm
Height mm
2nd opening
Length mm
Height mm
3rd opening
Length mm
Height mm
4th opening
Length mm
Height mm
5th opening
Length mm
Height mm
6th opening
Length mm
Height mm


This online calculator is designed for fast and accurate calculation of the amount of plaster needed for wall finishing. With this tool, users can easily determine material consumption per square meter, helping to avoid excess or shortages during work. The calculator is especially useful for those looking to estimate the required plaster for wall surfaces before starting the job.

Calculator features:

  • Allows you to calculate plaster requirements per square meter of the wall, considering layer thickness and wall surface area.
  • Helps to account for plaster consumption per square meter, which is particularly important for large-scale projects.
  • Takes into consideration the area of door and window openings for more precise calculations.
  • Offers the option to set a reserve factor to account for potential material losses during work.

How to use the calculator:

  1. Enter the total length of the walls to be plastered. You can do this by summing the lengths of all sides of the room.
  2. Specify the height of the walls.
  3. Set the thickness of the plaster layer. For thicknesses over 12-13 mm, it is recommended to use reinforcing mesh.
  4. Indicate the number and dimensions of openings, such as doors and windows.
  5. Set the reserve factor for a more accurate calculation.
  6. Click the "Calculate" button to obtain the result.

The calculator outputs the wall surface area, excluding openings, the required volume of plaster, and the final volume including the reserve. This helps to accurately determine the amount of material needed for any plastering project.

Use this calculator to optimize the plaster estimation process for walls and avoid mistakes when purchasing materials.