FREE TOOLS

Construction Calculators
Built for Indian Standards

Concrete mix quantities, rebar weight, brickwork, plastering, tiles, and paint — all based on BIS codes (IS 456, IS 1786, IS 2212, IS 2116). Plus Indian unit conversions including sqft, sqm, cents, and gunthas.

Concrete Mix Rebar Weight Brickwork Plastering Tile Quantity Paint Unit Converter

Material Calculators

All calculations based on Indian Standards (BIS). Suitable for estimation and project planning.
Concrete Mix Calculator
IS 456:2000 — Nominal Mix, M10 to M25
Enter volume to see
material quantities

Dry volume factor 1.54 applied per Indian practice. M30+ requires design mix per IS 10262:2019 — proportions vary by aggregate type and water-cement ratio.

Rebar / Steel Weight Calculator
IS 1786:2008 — Formula: D² ÷ 162 × L (kg)
Enter bar details to see
weight calculation

Standard bar length in India is 12 m. Formula D²/162 derived from steel density 7850 kg/m³. Use MT output for procurement orders.

Brickwork Material Calculator
IS 2212:1991 — Modular brick 190×90×90 mm, 10 mm mortar joint
Enter wall area to see
bricks and mortar quantities

10% brick wastage included. 1:6 mortar is standard for loadbearing brickwork; use 1:4 for superstructure as per structural design. Dry mortar factor 1.33 applied.

Plastering Material Calculator
IS 2116:1980 — Cement mortar plastering
Enter surface area to see
cement and sand quantities

Dry volume factor 1.35 applied for mortar shrinkage and wastage. For double-coat external plastering, calculate first coat (12mm, 1:6) and finish coat (8mm, 1:4) separately.

Tile Quantity Calculator
Standard Indian tile sizes — with wastage allowance
Enter area to see
tile and box count

Tiles per box varies by brand and size — confirm with your supplier. Always purchase at least 10% extra over calculated quantity. Keep extra tiles for future repairs.

Paint / Emulsion Calculator
Standard coverage rates for Indian market paints
Enter area to see
paint quantity and cans

Coverage varies by brand, surface porosity, and application method. Rough/unplastered surfaces may need 20–30% more. Always apply a coat of primer before emulsion on new surfaces.

Unit Converter

Indian and international construction units — area, volume, and length.

From Estimation to Execution — in One System

These calculators help you estimate. VISWOX ERP helps you track — turning your BOQ quantities into live material consumption, procurement orders, and budget variance reports on every project.