Free tools

Free construction calculators

Ten calculations you redo on every job, lifted out of the product and made public: no account, no limit, the maths runs in your browser.

Tile calculator

Tile count, boxes, kilos of adhesive and grout, from the area and the format.

Paint calculator

Litres of paint, number of tins and primer, from your coverage rates and coats.

Staircase calculator

Step count, riser, Blondel value, angle and floor run.

Thermal resistance

R resistance, U-value and indicative class of a multi-layer wall.

Sockets and circuits

Sockets, lighting points, dedicated circuits and breakers, room by room, at the minimums of the French standard NF C 15-100.

Unit converter

Lengths, areas, volumes and weights, metric as well as imperial.

Plan scale

From the centimetre measured on paper to the real metre, and back.

Construction VAT

Net to gross or gross to net, at the construction rates of your country.

Renovation budget

An order of magnitude per square metre, by scope of works, country and zone.

Cost breakdown by trade

The usual weight of each trade in a construction budget.

These calculators are the ones from FloorScan's toolkit panel, where they run once a plan has been analyzed and the areas arrive pre-filled. Here you type the values by hand, and the result is the same.

Free construction calculators

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