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Home, building & household

Garden area calculator

Calculate usable garden area after built areas are deducted.

Your result

Complete the fields and calculate.

Calculation method and formula

Garden length [m] × Garden width [m] − Patio, paths, buildings [m²]

Understand the inputs

Garden length
Unit: m. Use a measured value or your own assumption.
Garden width
Unit: m. Use a measured value or your own assumption.
Patio, paths, buildings
Unit: m². Use a measured value or your own assumption.

Assumptions and limitations

The model assumes the simple geometry shown. Measure lengths in the stated units. Split irregular areas into separate shapes and count openings only once.

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.

Garden length
24 m
Garden width
16 m
Patio, paths, buildings
65 m²
Example result319 m²

The result is based directly on your entries.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Garden area calculator work?+

Garden length [m] × Garden width [m] − Patio, paths, buildings [m²]. The model assumes the simple geometry shown. Measure lengths in the stated units. Split irregular areas into separate shapes and count openings only once.

What assumptions should I consider for this result?+

The model assumes the simple geometry shown. Measure lengths in the stated units. Split irregular areas into separate shapes and count openings only once. 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.

Toolbox

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