SiteMaths

SiteMaths

Construction Tools

Construction Calculators

Professional tools for accurate construction calculations.

m3
Concrete Calculator
Estimate concrete volume for slabs, columns, walls, and stairs
Unit Conversion Tool
Convert between imperial and metric units
Slope Calculator
Calculate slope angles, grades, and rise-over-run ratios
Spacing Calculator
Calculate spacing for balusters, pickets, and fence posts
Square Building
Ensure building corners are perfectly square using diagonal method or 3-4-5 rule
Stair Calculator
Calculate rise, run, treads, and stringer dimensions for perfect stairs

Quick Tips

📏 Accurate Measurements

Always double-check your measurements before calculating. A small error can lead to significant material waste.

🔢 Add Buffer

For concrete, always add 5-10% extra to account for spillage and uneven surfaces.

📐 Building Code Tip

Loading building code information...

📊 Square Your Building

Use the 3-4-5 method or diagonal measurements to ensure your building corners are perfectly square.

© 2026 SiteMaths. All rights reserved.

SiteMaths

Welcome to SiteMaths

The professional construction toolkit built for all trades, builders, estimators and site managers.

Compliance-Ready Calculations

Every calculator references your local building codes — AS, NZS, NEC, BS, NBCC — so your results meet the standards that matter on site.

40+ Professional Calculators

Concrete, carpentry, plumbing, electrical, civil, landscaping & bricklaying — all the tools tradies actually need.

AI Plan Scan (Pro)

Upload drawings or site plans and let AI extract quantities, dimensions and material estimates automatically.

Save & Revisit

Save calculations to projects, export PDFs and pick up exactly where you left off.

Welcome to SiteMaths

Please review and accept our terms before continuing

Terms of Use – Summary

SiteMaths provides construction estimation tools for informational and planning purposes only. All calculations are indicative and should not replace the advice of a licensed engineer, builder, or qualified professional.

By using SiteMaths you agree that:

  • Results are estimates only and may not reflect actual site conditions.
  • You will verify all calculations with a qualified professional before commencing work.
  • SiteMaths accepts no liability for errors, omissions, or losses arising from use of this app.
  • You will not reproduce, resell, or distribute any part of this app without written permission.
  • Your use of this app is subject to our full Privacy Policy and Terms of Service.

View the full Terms of Service and Privacy Policy.