Rate % Difference

Enter dimensions or quantities. Results and working calculations update automatically.

Old Rate → New Rate

Absolute difference and percentage increase/decrease.

Enter both rates.

Add or Reduce Percentage

Quick percentage adjustment.

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Reverse Percentage

Find original value from a final value.

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Profit, Markup & Margin

Kept from your earlier calculator set.

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GST Calculator

Add or remove GST.

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Add Wastage

Add wastage to any quantity.

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Quantity Difference %

Compare old and revised quantity.

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Unit Conversion

Common site conversions.

Enter a value.

Column Chipping Area

Quantity for chipping around selected faces of rectangular columns.

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Beam Chipping Area

Select beam faces actually being chipped.

Enter dimensions.

Slab Chipping Area

Quick slab/soffit repair area.

Enter dimensions.

Concrete Breaking Volume

Area × breaking depth.

Enter area and depth.

Microconcrete / SCC Jacketing Net Volume

New section volume minus existing section volume.

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Repair Mortar Quantity

Area and thickness to volume, kg and packs.

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PMM Quantity

First layer on full area + second layer on selected % area.

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Formwork / Shuttering Area

Column or beam shuttering area.

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Debris Quantity

Broken concrete volume with optional bulking factor.

Enter volume.

Main Bar Weight

Repeated main bars across elements.

Enter bar details.

Stirrup Cutting Length

Rectangular stirrup with cover and hook allowance.

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Stirrup Count

Member height and c/c spacing.

Enter height and spacing.

Stirrup Weight

Stirrup length × count × dia × number of elements.

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Complete Column Steel

Main bars + stirrups in one calculation.

Enter steel details.

Beam Steel Weight

Longitudinal bars + stirrups.

Enter steel details.

Lap Length / Extra Steel

Additional length and weight due to laps.

Enter lap details.

CFRP Column Wrap Area

Perimeter × wrap height × layers × columns.

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CFRP Beam Wrap Area

Selected beam faces × length × layers.

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CFRP Roll Requirement

Total area to rolls, with roll size and wastage.

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CFRP Anchor Quantity

Length × rows ÷ spacing.

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Bond Coat Quantity

Area ÷ coverage.

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Primer Quantity

Area × coats ÷ coverage.

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Protective Coating Quantity

Area × coats ÷ coverage.

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Corrosion Inhibitor Quantity

Area × specified consumption.

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Rust Remover Quantity

Steel treatment area ÷ coverage.

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Chemical Anchor Resin Quantity

Annular hole volume around rebar.

Enter anchor details.

Anchor Count by Spacing

Length and spacing, with rows and repeated elements.

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Drilling Length

Total drilled running length.

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Scaffolding Volume

Working-zone volume around rectangular column.

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Working Platform Area

Length × width × levels.

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Core Cutting Quantity

Total drilling length and removed core volume.

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Rectangular Column Surface Area

Four-face vertical surface area.

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Circular Column Surface Area

Circumference × height.

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Beam Surface Area by Faces

Useful for repair, coating and CFRP area.

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Slab Soffit Area

Simple slab underside area.

Enter dimensions.

Wall Area less Openings

Gross wall area minus total openings.

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Jacket Section Area

Net cross-sectional area added around an existing rectangular section.

Enter section sizes.