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Rug Size For Room Calculator

Work out rug size for room instantly with clear inputs, formula shown and shareable results.

About Rug Size For Room Calculator

A rug should leave an even border of visible floor — 30-60 cm is the usual range — which frames the room rather than fighting the walls. For a dining table the rug must extend at least 60 cm beyond the table on all sides so chairs stay on it when pulled out.

Formula

Rug sizing

rug dimension = room dimension - 2 x border gap, scaled for the placement type

Worked example

With the default values below, Rug Size For Room Calculator returns Recommended rug length of 4.10. Change any input above and every figure here is recalculated in your browser.

Inputs used

Room length
5 m
Room width
3.8 m
Floor visible around the rug
45 cm
Placementone of Living room seating area, Under a dining table, Bedroom under the bed
Living room seating area

Results

Recommended rug length
4.10 m
Recommended rug width
2.90 m
Rug area
11.89 m²
Floor coverage
62.6% %

Step by step

  1. 1Values used
  2. 2Rug sizing
  3. 3Recommended rug length= 4.10 m
  4. 4Recommended rug width= 2.90 m
  5. 5Rug area= 11.89 m²
  6. 6Floor coverage= 62.6 %

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why leave a border?

A rug that reaches the walls reads as bad carpet. The visible floor border defines the rug as a deliberate object and makes the room look larger.

What is the dining table rule?

Add at least 60 cm to every side of the table so the back legs of a pulled-out chair remain on the rug. Chairs catching the edge is the commonest mistake.

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