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20 Features

Home & Daily Life Calculators

Practical calculators for DIY, renovation, energy and home budgeting.

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Paint Calculator

Know exactly how many liters of paint to buy before going to the store.

Room Area Calculator

Find the exact floor area of a room for flooring, paint or heating.

Room Volume Calculator

Compute room volume in m³ for HVAC, ventilation and heating sizing.

Tile Calculator

Never buy too few (or too many) tiles again.

Parquet / Flooring Calculator

Order the right number of flooring packs for your room.

Concrete Calculator

Estimate concrete volume for a slab, path or footing.

Cement Calculator

Calculate cement bags and weight for any mix volume.

Sand Calculator

Know how much sand to order for your mix.

Gravel Calculator

Order the right amount of gravel for your project.

Roof Area Calculator

Find the real surface of a pitched roof for materials.

Slope / Incline Calculator

Convert slope between percent, degrees and ratio.

Staircase Calculator

Design a comfortable staircase with the right number of steps.

Room Dimensions Calculator

Turn an area into real room dimensions.

Water Consumption Calculator

Understand your household water usage and bill.

Energy Consumption Calculator

Find out what an appliance really costs to run.

Solar Panel Calculator

Size a solar array to cover your electricity usage.

Solar Power Calculator

See how much energy your solar array will produce.

Solar Battery Calculator

Size a battery bank for your solar system.

Heating Cost Calculator

Estimate what heating your home really costs.

Air Conditioning Cost Calculator

Size your AC and estimate its running cost.

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Automobile & Transport Calculators

Home & Daily Life Calculators

Practical calculators for DIY, renovation, energy and home budgeting.

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Help Center

Invoice Generator FAQs

Yes, all 20 home calculators are 100% free, private and run entirely in your browser. No account needed.

They use standard industry formulas. Always round up for materials and confirm with a professional for structural work.

The calculators use metric units (meters, liters, m³). Convert imperial measurements beforehand if needed.

No. Calculations happen instantly in your browser and nothing is sent to any server.

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