Convert area instantly between square meters, square kilometers, square feet, square inches, square yards, acres, hectares, and square miles. Type a value, pick units, and see all 8 conversions live - all processing stays in your browser.
Technical Specifications
Conversion factors and display rules used for every calculation.
| Specification |
Details |
| Supported units |
Square Meter (m2), Square Kilometer (km2), Square Foot (ft2), Square Inch (in2), Square Yard (yd2), Acre (ac), Hectare (ha), Square Mile (mi2) - 8 units |
| Base unit |
Square Meter (m2). All conversions go through square meters: value -> sq m -> target. |
| Factors to sq meter |
m2 1, km2 1000000, ft2 0.09290304, in2 0.00064516, yd2 0.83612736, ac 4046.8564224, ha 10000, mi2 2589988.110336 |
| Formula |
result = amount x (fromFactor / toFactor) |
| Precision |
Double precision (IEEE 754). Display up to 9 decimal places, trailing zeros trimmed; exponential for |n| >= 1e12 or |n| < 1e-6 |
| Input handling |
Commas ignored, decimal points accepted, negatives allowed. Empty or invalid shows helper message. Update is live on input. |
| Matrix |
Every keystroke also recomputes the All Units grid: input amount shown in all 8 units relative to the From unit. |
| Processing location |
100% client-side JavaScript in your browser memory; nothing is uploaded |
| Export |
Copy result to clipboard or download a plain-text report with inputs, result, and all-units table |
| Usage limit |
None - run unlimited conversions for free, no signup required |
Understanding Area Units
Area measures two-dimensional space as length squared. One square meter is a 1 m by 1 m square, while one acre is historically a chain by a furlong. Converting squares the linear factor, so feet to meters uses 0.3048 but sq ft to sq m uses 0.0929.
Metric: square meters to square kilometers
Metric area scales by one million: 1 sq km equals 1,000,000 sq m, and 1 hectare equals 10,000 sq m. Land plots use sq m for houses, hectares for farms, and sq km for cities. Shifting the decimal by six converts between sq m and sq km.
Imperial: square feet, acres, and square miles
Imperial area: 144 sq inches make a sq foot, 9 sq feet make a sq yard, 43,560 sq feet make an acre, and 640 acres make a sq mile. US homes use sq ft, farms use acres, and counties use sq miles. One sq mile equals 27,878,400 sq ft.
When to use which unit
Use sq meters and sq feet for rooms and apartments, acres and hectares for land, and sq km and sq miles for districts. If a project spans systems, convert through sq meters with fromFactor / toFactor - for example sq m to sq ft multiplies by 10.763910417.
Honest limitations
Display rounding hides trailing noise but near extremes precision is limited by double floating point. Values beyond 1e12 sq meters switch to exponential form. The tool does not handle circular mil or square rods - for those, use the specialized Length Converter or Volume Converter patterns.
Privacy and Client-Side Security
Privacy Guarantee: All conversions occur locally inside your browser. Your numbers and selected units are never transmitted, stored, or recorded on remote servers.
Many online converters send your inputs to a server for lookup, which is unnecessary for fixed-factor math. TinyToolzz keeps everything in-page: factor tables, multiplication, and formatting run with plain JavaScript number operations.
Because nothing is uploaded, there is no waiting, no account, and no copy of your figures retained anywhere. Your values exist only in the tab's memory and are discarded when you close the page or click Clear.