Rate % Difference
Enter dimensions or quantities. Results and working calculations update automatically.
Old Rate → New Rate
Absolute difference and percentage increase/decrease.
Add or Reduce Percentage
Quick percentage adjustment.
Reverse Percentage
Find original value from a final value.
Profit, Markup & Margin
Kept from your earlier calculator set.
GST Calculator
Add or remove GST.
Add Wastage
Add wastage to any quantity.
Quantity Difference %
Compare old and revised quantity.
Unit Conversion
Common site conversions.
Column Chipping Area
Quantity for chipping around selected faces of rectangular columns.
Beam Chipping Area
Select beam faces actually being chipped.
Slab Chipping Area
Quick slab/soffit repair area.
Concrete Breaking Volume
Area × breaking depth.
Microconcrete / SCC Jacketing Net Volume
New section volume minus existing section volume.
Repair Mortar Quantity
Area and thickness to volume, kg and packs.
PMM Quantity
First layer on full area + second layer on selected % area.
Formwork / Shuttering Area
Column or beam shuttering area.
Debris Quantity
Broken concrete volume with optional bulking factor.
Main Bar Weight
Repeated main bars across elements.
Stirrup Cutting Length
Rectangular stirrup with cover and hook allowance.
Stirrup Count
Member height and c/c spacing.
Stirrup Weight
Stirrup length × count × dia × number of elements.
Complete Column Steel
Main bars + stirrups in one calculation.
Beam Steel Weight
Longitudinal bars + stirrups.
Lap Length / Extra Steel
Additional length and weight due to laps.
CFRP Column Wrap Area
Perimeter × wrap height × layers × columns.
CFRP Beam Wrap Area
Selected beam faces × length × layers.
CFRP Roll Requirement
Total area to rolls, with roll size and wastage.
CFRP Anchor Quantity
Length × rows ÷ spacing.
Bond Coat Quantity
Area ÷ coverage.
Primer Quantity
Area × coats ÷ coverage.
Protective Coating Quantity
Area × coats ÷ coverage.
Corrosion Inhibitor Quantity
Area × specified consumption.
Rust Remover Quantity
Steel treatment area ÷ coverage.
Chemical Anchor Resin Quantity
Annular hole volume around rebar.
Anchor Count by Spacing
Length and spacing, with rows and repeated elements.
Drilling Length
Total drilled running length.
Scaffolding Volume
Working-zone volume around rectangular column.
Working Platform Area
Length × width × levels.
Core Cutting Quantity
Total drilling length and removed core volume.
Rectangular Column Surface Area
Four-face vertical surface area.
Circular Column Surface Area
Circumference × height.
Beam Surface Area by Faces
Useful for repair, coating and CFRP area.
Slab Soffit Area
Simple slab underside area.
Wall Area less Openings
Gross wall area minus total openings.
Jacket Section Area
Net cross-sectional area added around an existing rectangular section.