# Square meters to square feet converter > Convert square meters to square feet (sq m to sq ft) with the exact factor, a conversion chart and worked steps. Interactive version: https://www.calcopenly.com/conversion/square-meters-to-square-feet Subject: Unit converters Square-meter plans are useful for comparing room sizes and estimating coverage. Converting an area to square feet uses a squared length factor. If you only know the room's length and width, calculate their product in consistent units first. One square metre is about 10.7639104167 square feet, so 100 m² is 1,076.391042 ft². To convert sq m to sq ft, multiply by 10.7639104167; to convert back, multiply by 0.09290304. A square foot is exactly 0.09290304 m², because the foot is exactly 0.3048 m. The factor has no exact decimal form, so results are computed with 50 significant digits and rounded only for display. ## Inputs - **Square meters (m²)** ## Results - Square feet (ft²) — main result - Conversion - 1 ft² in square meters (m²) ## Formula $$ \text{square feet} = \text{square meters} \times 10.7639104167 $$ ## Worked examples ### 100 m² to ft² - Square meters (m²): 100 m² - **Square feet: 1,076.39104167 ft²** - Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions) ### 50 m² to ft² - Square meters (m²): 50 m² - **Square feet: 538.195520836 ft²** - Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions) ### 500 m² to ft² - Square meters (m²): 500 m² - **Square feet: 5,381.95520835 ft²** - Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions) ## Questions ### How much floor area is 100 square meters in square feet? 100 m² is approximately 1,076.39 sq ft. Multiply area by about 10.7639, rather than the 3.28084 factor used for a single meter of length. Add any material waste allowance separately. ### How many square feet are in a square metre? One square metre is about 10.7639104167 square feet. A square foot is exactly 0.09290304 m², because the foot is exactly 0.3048 m. ### How do you convert sq m to sq ft? Multiply the number of square meters by 10.7639104167. For example, 100 m² × 10.7639104167 = 1,076.391042 ft². To go the other way, divide by 10.7639104167. ### How can I estimate sq m to sq ft without a calculator? Multiply by 11. That is 2.2% high of the exact factor 10.7639104167, so 100 m² comes out as 1,100 ft² instead of 1,076.391. ### How accurate is the square meters to square feet converter? Accuracy depends on your inputs and the method's assumptions. Decimal arithmetic uses 50 significant digits, but estimates, numerical methods and source data can be less precise; the displayed rounding does not remove those limits. It is checked against 3 worked examples whose answers come from independent sources; for example, “100 m² to ft²” is checked against Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions). ### Where does the method come from? NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B; NIST Handbook 44, Appendix C: General tables of units of measurement; BIPM, The International System of Units (SI Brochure), 9th edition. ## Sources - [NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B](https://www.nist.gov/pml/special-publication-811) - [NIST Handbook 44, Appendix C: General tables of units of measurement](https://www.nist.gov/pml/weights-and-measures/publications/nist-handbooks/handbook-44) - [BIPM, The International System of Units (SI Brochure), 9th edition](https://www.bipm.org/en/publications/si-brochure)