Square Metres to Square Feet

How the square metres to square feet conversion works

A square metre (m²) is the SI unit of area; a square foot (ft²) is the imperial unit. The two are linked by a fixed, defined factor: one square metre equals 10.7639 square feet. Enter an area in square metres and the calculator multiplies it by that factor to give square feet, then derives the square-yard equivalent (m² × 1.19599). Nothing here is an estimate — the conversion is exact, and the only figure that carries uncertainty is the area entered.

The exact conversion factor

A foot is defined as exactly 0.3048 m, so one square foot is exactly 0.09290304 m². Dividing one by that gives the factor from m² to ft²: 1 ÷ 0.09290304 = 10.763910416…. The calculator applies the full-precision factor; the displayed result rounds to two decimal places for both square feet and square yards — a resolution suitable for room-scale areas. The square-yard factor is 1 ÷ 0.83612736 = 1.19599 (one square yard is nine square feet, so 0.09290304 × 9 = 0.83612736 m²).

What a square metre actually measures

A square metre is a square with sides one metre long. One metre is 3.28084 feet, so a square metre is roughly 3.28 ft × 3.28 ft — slightly larger than a floor tile that is 1 m × 1 m, which happens to also be 1 m². Room areas, floor coverings, wall surfaces, roof panels, and garden plots are all routinely measured in square metres in the UK. One square metre is 10.76 ft² and 1.20 yd².

Square metres, square feet, and square yards compared

One square metre equals 10.76 ft² or 1.20 yd². One square foot is 0.0929 m². One square yard is 0.8361 m², or nine square feet. UK specifications quote floor and wall areas in m², but some imported flooring products, carpet from North American manufacturers, and older estate-agent listings still reference square footage. Square yards persist in some carpet and artificial-grass pricing schedules. The calculator shows both ft² and yd² alongside each other, removing the need for a second lookup.

Worked examples

One square metre converts to 10.76 ft² (1.20 yd²). A 10 m² bathroom floor converts to 107.64 ft² (11.96 yd²). A 25 m² open-plan kitchen-diner converts to 269.10 ft² (29.90 yd²). Each result follows directly from the single conversion factor with no intermediate rounding step that would compound error.

Where square feet still appear in UK practice

Estate-agent floor plans increasingly give both m² and ft² for residential property, particularly for buyers familiar with North American conventions. Commercial lease terms and office-space benchmarks are sometimes quoted in square feet — GIA (gross internal area) figures in ft² appear in investment property particulars. Imported tiles, hardwood boards, and sheet materials sourced from the US or Canada may be priced per square foot. Converting an m² specification to ft² is a routine step when ordering those materials or comparing a UK floor plan against an international benchmark.

Square metres on building and planning submissions

Building Regulations, planning applications, and energy-performance certificates in the UK are drawn up in metric. Floor areas on Energy Performance Certificates (EPCs) are recorded in m², as are habitable room dimensions on planning drawings. A square-footage figure from a marketing brochure or imported product specification converts to m² before it aligns with what a Building Control body or energy assessor works with.

Precision and rounding

The conversion factor is exact to as many digits as needed, so precision is limited only by the area entered and by sensible display rounding. The calculator shows square feet and square yards each to two decimal places — sufficient for construction and decorating purposes where measurements are taken to the nearest centimetre at best. For survey-grade work, the area from a measured floor plan is more reliable than a converted listing figure, because the input measurement rather than the arithmetic sets the real accuracy.

Using this alongside other BuildMetricLab tools

The metres-to-feet-inches calculator handles linear conversion if a measurement starts as a length rather than an area. The hectares-to-acres and acres-to-square-metres calculators cover larger land areas. The cubic-metres-to-cubic-yards calculator extends the same principle to volumes. Every BuildMetricLab tool runs entirely in your browser — no sign-up, no data sent anywhere, and the formula is shown on the page so the maths can be audited.