🧰

Plaster Calculator

plaster-calculator

Estimate plaster mortar, cement and sand from wall area, thickness and mix ratio.

🛡 Privacy-first⚡ Fast🔓 No signup📱 Mobile friendly
Dynamic diagram
⚠️ Results are estimates for takeoff and planning. Do not use them as a substitute for structural design, specifications or local building codes; consult a qualified professional when required.

💡 Useful information

Estimate plaster or render mortar volume, cement bags and sand from wall area, thickness, mix ratio and waste.

  • Runs directly in a modern browser.
  • Works on phones and desktop computers.
  • Reuse it without creating an account.

ℹ️ How to use

  1. Enter your data or choose the required file.
  2. Adjust the available options.
  3. Run the tool and review the result.
  4. Copy or download the result when needed.

❔ Frequently asked questions

Does it account for dry material volume?

The calculator uses an estimating dry-volume factor plus your selected waste allowance.

Does this replace the specified mix?

No. The actual mix must follow project specifications and materials used.

Share this tool