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Home, building & household

Living area calculator

Add rooms, ancillary areas and the eligible balcony share.

Your result

Complete the fields and calculate.

Calculation method and formula

Living rooms [m²] + Eligible ancillary areas [m²] + Balcony/terrace area [m²] × Eligible share [%] ÷ 100

Understand the inputs

Living rooms
Unit: m². Use a measured value or your own assumption.
Eligible ancillary areas
Unit: m². Use a measured value or your own assumption.
Balcony/terrace area
Unit: m². Use a measured value or your own assumption.
Eligible share
Unit: %. Use a measured value or your own assumption.

Assumptions and limitations

Eligible room and ancillary areas are added, with balcony area weighted by your percentage. This does not replace measurement under a country's living-area rules.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Living rooms
96 m²
Eligible ancillary areas
14 m²
Balcony/terrace area
12 m²
Eligible share
25 %
Example result113 m²

Legal living-area rules vary by country and standard.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Living area calculator work?+

Living rooms [m²] + Eligible ancillary areas [m²] + Balcony/terrace area [m²] × Eligible share [%] ÷ 100. Eligible room and ancillary areas are added, with balcony area weighted by your percentage. This does not replace measurement under a country's living-area rules.

What assumptions should I consider for this result?+

Eligible room and ancillary areas are added, with balcony area weighted by your percentage. This does not replace measurement under a country's living-area rules. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Prices, measurements and model assumptions determine how well the result represents your situation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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