ConstrCalc NEVER makes assumptions. You provide project data — we perform mathematically accurate calculations, insights, conversions & reports. Transparency Policy →

Each entry below opens the same six-tab calculation engine, pre-framed for a particular kind of project. A residential extension and an industrial fit-out draw on different cost categories, so starting from the closest match saves you setup time — the underlying mathematics is identical either way.

Choose the calculator nearest to your job type, then adjust the inputs to match your drawings, rates, and local conditions. Every field remains editable, and nothing is pre-filled with a figure you cannot change.

Calculators by Project Type