Convert Square Meters to Square Feet - Area Converter

Convert area values from square meters (m²) to square feet (ft²) for architecture, real estate, engineering, energy modeling, and general use. This converter returns results consistent with international unit definitions used by standards bodies and federal agencies.

The conversion is based on the exact definition of the international foot: 1 foot = 0.3048 meters exactly. Because that linear relationship is exact, the derived area relationship between square meters and square feet is exact and reproducible.

Use this tool for quick unit changes, reporting, or to verify values from plans and specifications. For legal or contractual submissions, confirm any formatting, rounding, or definition requirements with the relevant authority or standards referenced in the citations.

Updated Nov 4, 2025QA PASS — golden 25 / edge 120Run golden-edge-2026-01-23

Governance

Record a907eaa3c2ce • Reviewed by Fidamen Standards Committee

Interactive Converter

Convert between square meter and square foot with precision rounding.

Square Meter (m²)Square Foot (ft²)

Quick reference table

Square Meter	Square Foot
1 m²	10.7639 ft²
5 m²	53.8196 ft²
10 m²	107.6391 ft²
25 m²	269.0978 ft²
50 m²	538.1955 ft²
100 m²	1,076.391 ft²

Methodology

We use the internationally agreed linear definition of the foot: 1 ft = 0.3048 m (exact). Square both sides to derive the area relationship.

From the exact linear equivalence, 1 ft² = 0.09290304 m² exactly. Invert that to get 1 m² = 1 / 0.09290304 ft² = 10.763910416709722 ft² (displayed rounded as needed).

The converter applies that exact relationship and then formats the numeric result according to the display precision you choose. For engineering and surveying, carry enough significant figures to match measurement uncertainty before final rounding.

F.A.Q.

Is the conversion exact or approximate?

The conversion is exact in the sense that it is derived from the exact defined value of the international foot (1 ft = 0.3048 m exactly). This produces an exact algebraic relationship between m² and ft²; displayed numbers are rounded for readability.

How many square feet are in 1 square meter?

1 square meter = 10.763910416709722 square feet. Most contexts present this as 10.7639 ft² or 10.764 ft² depending on rounding rules.

How should I choose precision when converting?

Match the precision to the measurement uncertainty. For conceptual conversions, 4–6 significant digits are usually enough (e.g., 10.7639). For engineering or energy modeling keep more digits until the final reporting stage; for legal documents follow the local regulatory rounding rules.

Why do some calculators show slightly different results?

Differences come from display rounding or from using fewer significant digits. The underlying exact relationship is fixed; any discrepancy is almost always due to rounding or formatting choices.

Can I use this for surveying or legal measurements?

This converter provides mathematically exact unit conversion. For survey-grade or legal measurements, you must also account for measurement uncertainty, datum, projection, and the definitions required by local regulations or contracts. Confirm with the relevant standards or authorities before final submission.

Do building codes or listings define area differently?

Yes. ‘Gross area’, ‘net leasable area’, and other definitions vary by code, standard, and jurisdiction. This tool only converts numeric units; consult local building codes or standards (for example, ANSI, ISO, or local municipal codes) for area definitions used in compliance or listings.

How should I handle very large or very small numbers?

For extremely large or small areas, consider scientific notation or confirm that your target system accepts the formatted value. Retain sufficient significant figures and apply rounding rules only at the final reporting stage.

Does instrument calibration affect conversion results?

Conversion itself is exact and unaffected by instrument calibration. However, any measurement taken in the field is subject to instrument accuracy and calibration, which determines how many digits you should report after conversion.

Sources & citations

NIST — Weights and Measures / SI Units — https://www.nist.gov/pml/weights-and-measures
BIPM — The International System of Units (SI) and related information — https://www.bipm.org/en/measurement-units/
MIT OpenCourseWare — Reference material on units and dimensional analysis — https://ocw.mit.edu
ISO 80000-3:2019 — Space and time — https://www.iso.org/standard/64974.html
NIST SP 811 — Guide for the Use of the International System of Units — https://www.nist.gov/pml/special-publication-811

Further resources

Related tools

External guidance

Versioning & Change Control

Audit record (versions, QA runs, reviewer sign-off, and evidence).

Record ID: a907eaa3c2ce

What changed (latest)

v1.0.0 • 2025-11-04 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Public QA status

PASS — golden 25 + edge 120

Last run: 2026-01-23 • Run: golden-edge-2026-01-23

Engine

v1.0.0

Data

Baseline (no external datasets)

Content

v1.0.0

Governance

Last updated: Nov 4, 2025

Reviewed by: Fidamen Standards Committee (Review board)

Credentials: Internal QA

Risk level: low

Reviewer profile (entity)

Fidamen Standards Committee

Review board

Internal QA

Entity ID: https://fidamen.com/reviewers/fidamen-standards-committee#person

Semantic versioning

MAJOR: Calculation outputs can change for the same inputs (formula, rounding policy, assumptions).
MINOR: New features or fields that do not change existing outputs for the same inputs.
PATCH: Bug fixes, copy edits, or accessibility changes that do not change intended outputs except for previously incorrect cases.

Review protocol

Verify formulas and unit definitions against primary standards or datasets.
Run golden-case regression suite and edge-case suite.
Record reviewer sign-off with credentials and scope.
Document assumptions, limitations, and jurisdiction applicability.

Assumptions & limitations

Uses exact unit definitions from the Fidamen conversion library.
Internal calculations use double precision; display rounding follows the unit's configured decimal places.
Not a substitute for calibrated instruments in regulated contexts.
Jurisdiction-specific rules may require official guidance.

Change log

v1.0.0 • 2025-11-04 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Areas: engine, content, ui • Reviewer: Fidamen Standards Committee • Entry ID: e59681b09c0a