Construction Calculators

Five free calculators for planning a build or renovation in India — concrete, bricks, square footage, tiles and paint, each with a material cost estimate.

Construction Calculators for India

Planning a house, room addition or renovation involves a lot of back-of-envelope material math — how many cement bags, how many bricks, how much paint. This category brings together five calculators that cover that math: a Concrete Calculator for cement/sand/aggregate quantities by M-grade, a Brick Calculator for wall material including mortar, a Square Footage / Area Calculator for totaling multiple rooms, a Tile Calculator for flooring quantities with cutting wastage, and a Paint Coverage Calculator for litres needed per room.

All five are built around Indian construction conventions — modular and traditional brick sizes, M10-M25 nominal mix ratios from IS 456, cement sold in 50kg bags, and sand/aggregate priced by the cubic foot — with an optional material cost field on each so you get a rough budget number alongside the quantity.

Which Calculator Do I Need?

If you're not sure which of the five tools below fits your task, use this quick guide:

Your situation Use this calculator
Pouring a slab, footing, column or beam and need cement, sand and aggregate Concrete Calculator
Building a wall and need to know how many bricks, and how much mortar Brick Calculator
Working out total floor area across one or more rooms in square feet or meters Square Footage / Area Calculator
Flooring or tiling a room and need to know how many tiles and boxes to buy Tile Calculator
Painting a room and need to know how many litres of paint to buy Paint Coverage Calculator

All Construction Calculators

Free, no sign-up, no data uploaded — click any calculator to open it.

Concrete Calculator

Calculate cement bags, sand and aggregate for a slab, footing or column, by M10-M25 grade, with material cost.

Brick Calculator

Calculate the number of bricks, cement bags and sand needed for a wall — modular or traditional brick, any thickness.

Square Footage / Area Calculator

Add every room and get the total floor area instantly, in square feet and square meters, with a cost estimate.

Tile Calculator

Find out how many tiles and boxes to buy for a floor or wall, with cutting wastage and total cost included.

Paint Coverage Calculator

Work out exactly how many litres of paint your room needs — walls, ceiling, doors and windows accounted for.

Written and reviewed by Last updated

Frequently Asked Questions

Start with the Square Footage Calculator to establish your total floor area, then use the Concrete Calculator for slab/footing quantities and the Brick Calculator for wall material — both of these depend on dimensions you'll already have worked out. Tile and Paint calculators are typically used later, closer to the finishing stage.

They use the same nominal-mix and standard-dimension formulas contractors use for planning-stage estimates, and are accurate for the numbers you enter. Treat the results as a strong planning estimate to discuss with your contractor or supplier — always confirm the exact grade, brick size and wastage assumptions for your specific site before placing a bulk order.

No. Every calculator on this page runs entirely in your browser using JavaScript. Nothing you type in — dimensions, material prices, quantities — is uploaded to a server, logged, or saved anywhere.

The underlying geometry (area, volume) works anywhere, but the defaults — brick sizes, mortar ratios, cement bag weight, and material pricing in ₹ — are set up for Indian construction practice. Users outside India can still use them by adjusting the brick/tile size and cost fields to match local standards.