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Square Footage / Metres

Enter length and width to get area in both m² and ft².

Short answer

Area = length × width. 1 m² = 10.7639 ft². Add a £/m² rate (e.g. flooring, paint coverage) to get a total cost.

Dimensions

Units
£

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Calculation method, coverage and version

Inputs used
Units, Length, Width, Cost per m² (optional).
Calculation approach
The calculator applies the rules and assumptions described in “How it works” to the values you enter. Rounding can cause small differences from an official or provider calculation.
Coverage
Utility. UK nations, tax treatment, local rules and provider criteria can differ; check the official sources shown below before acting.
Content version
No page-specific review date is currently published. Treat the result as indicative and verify current rules independently.
Not included unless explicitly requested: personal circumstances not entered, provider discretion, future rule changes, professional fees and case-specific exceptions. Read the full calculator methodology.

How it works

Area of a rectangle = length × width. We always show both metric and imperial because UK trades quote in both.

Worked example

5 m × 4 m = 20 m² = 215.28 ft². Flooring at £25/m² = £500.

Who should use this

  • •Estimating flooring, paint, tiles, turf
  • •Comparing room sizes

Common mistakes

  • ×Mixing metres and feet in the same calculation
  • ×Forgetting to add 10% for cuts and waste on flooring

Frequently asked questions

How do I measure a room with bays or alcoves?▾

Split into rectangles, calculate each, and add together.

Related calculators

Concrete Calculator →Unit Converter →