Block Mortar Calculator

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Estimate mortar volume and cement-sand quantities for blockwork.

Blocks & AACWorking calculatorMobile friendly

Block Mortar CalculatorVisual reference for this tool.

Use this calculator for quick estimating and planning. Verify project-specific assumptions before final procurement or design.

Blockwork Volume (m³)

Mortar Fraction (ratio)

Cement Part (part)

Sand Part (part)

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Note—

Calculations run locally in your browser; no backend is required.

Wet Mortar = Blockwork Volume × Mortar Fraction

For 5 m³ blockwork at 12% mortar fraction, wet mortar = 0.60 m³.

For structural, electrical, code-compliance or safety-critical work, use this as a preliminary estimate and verify with a qualified professional.

Short answers for common estimation questions.

They are estimation values. Site conditions, product specifications and local practice can change final quantities.

Yes. Civil Micros is designed to work on mobile browsers without a backend.

Continue your calculation workflow.