Home & Construction

Work out what each appliance costs to run per day, month and year at your own tariff.

See what a rooftop solar system would save on your bill and how long it takes to pay for itself.

Work out how many solar panels and how many kW you need, and whether your roof is big enough.

Work out how many litres of paint a room needs, and how many cans to buy, before you go shopping.

Calculate how many tiles and boxes a floor or wall needs, including wastage for cuts.

Work out how many boxes of flooring a room needs and what it will cost, wastage included.

Work out how many cement bags a concrete pour or a plastering job needs, with sand and aggregate.

Calculate how many bricks a wall needs, plus the cement and sand for the mortar.

Work out concrete volume and the cement, sand and aggregate a slab or footing needs.

Calculate floor, wall and ceiling area for a room, with doors and windows deducted.

Convert land area between square feet, gaj, acre, hectare, bigha, guntha, cent and more.

Work out how many litres a tank holds and how long that lasts your household.

Find the right air conditioner size for a room, and what it will cost to run each month.

Size a home inverter and battery for the load you want to run and the backup hours you need.

Convert a bar schedule to kilograms and tonnes using the d²/162 rule, across every TMT size.

Cement, sand and water for plastering, with openings deducted and the right thickness for the surface.

Blocks, thin-bed adhesive and wall weight for AAC masonry, compared against the same wall in brick.

Cement, sand and water for any volume of mortar, with the mixes compared side by side.

Sheets, screws and ridge for a pitched roof, allowing for the slope and the side lap.

Dig volume, spoil after swell and truck loads, including working space and battered sides.

Fill needed around a finished structure, allowing for compaction shrinkage and reusing the excavated soil.

Concrete, steel and shuttering for isolated footings — blinding, footing and pedestal together.

Bars, lengths and weight for a slab mat, from the spacing on the drawing.

Cutting lengths, laps and weights for every bar mark, with the working shown and CSV export.

Size a house connection — connected load, maximum demand, phase and main breaker.

Cable size from current and run length, checked against both the ampacity and the voltage drop.

Pump HP from flow and total head, with friction worked out by Hazen-Williams.

Septic tank size for a household, following IS 2470 — detention volume plus sludge.

How much rain a roof can collect, after runoff losses and first flush, with storage sizing.

What a house costs to build, by quality and city, broken down across the trades.

Cement, steel, sand, aggregate and bricks for a whole building, from per-square-foot rates.

Price a bill of quantities line by line, with overheads, profit and GST shown separately.

Concrete, steel, bricks and mortar summed across every element of a structure.

Compare builder quotes on scope, not just price, and see which is genuinely best value.

Estimate what interior work will cost, broken down by kitchen, wardrobes, flooring, ceiling and the rest.