Area Unit Convertersq ft · m² · acres · ha · sq yd · km² · sq in
Convert any area unit instantly — square feet to square meters, acres to hectares, square yards to square feet, square kilometers to hectares. Built for real estate agents, students, farmers, contractors, and engineers. Type once, all units update, copy any result in one click.
Area scale — smallest to largest
Every Area Unit — Anchored to Square Meters
All supported units with their exact m² equivalents and typical field of use
| Unit | Abbr. | In Square Meters (m²) | Typical Use |
|---|---|---|---|
| Square millimeter | mm² | 0.000001 m² | PCB traces, microchips, technical drawings |
| Square centimeter | cm² | 0.0001 m² | Small surfaces, tiles, paper area |
| Square inch | sq in | 0.000645 m² | Screen sizes, fabric cuts, US specs |
| Square foot | sq ft | 0.0929 m² | US/UK room area, real estate, flooring |
| Square yard | sq yd | 0.8361 m² | Carpet, fabric, cricket pitches |
| Square meter | m² | 1 m² | Apartments, rooms, construction |
| Are | are | 100 m² | Land area in some EU countries |
| Acre | ac | 4,046.86 m² | US/UK land, farming, property |
| Hectare | ha | 10,000 m² | Agriculture, land registry, EU farms |
| Square kilometer | km² | 1,000,000 m² | Cities, countries, geographic areas |
| Square mile | sq mi | 2,589,988 m² | US counties, population density |
Area scales as the square of length. If 1 m = 3.281 ft, then 1 m² = 3.281² = 10.764 sq ft. Always square the linear factor when converting area — a common exam mistake is using the linear factor (×3.281) instead of the squared one (×10.764).
Area Conversion Across Every Sector
Real estate, construction, agriculture, and geography each use different area units — this tool covers all of them
Real Estate & Property
- US listings use sq ft; EU listings use m² — convert instantly to compare
- 1,000 sq ft apartment = 92.9 m² (about a 3-bedroom flat in London)
- Lot size in acres (US) vs hectares (EU) — 1 acre = 0.405 ha
- Property tax assessments often require m² — convert from sq ft listings
Construction & Flooring
- Flooring is sold in sq ft (US) and m² (EU) — buy the right amount
- Tiles specified in sq yd; rooms measured in sq ft: divide sq ft ÷ 9 for sq yd
- Concrete slabs: sq ft for pour area, m² for material quantity sheets
- Paint coverage: typically listed per m² or per sq ft — match to room size
Agriculture & Land
- UK/US farms use acres; European farms use hectares — 1 ha = 2.471 acres
- International crop yield reports use hectares — convert from local acre data
- 1 sq mi = 640 acres = 259 ha — common in large US land parcel descriptions
- Land registration in India uses sq ft, sq yd, and acres by region
Mapping & Geography
- Country area comparisons: km² standard globally (e.g., India = 3.29M km²)
- National parks, forests: hectares (ha) for EU; sq mi or acres for US
- Urban planning uses ha and km²; individual plots use m² or acres
- Satellite imagery resolution often cited as m² per pixel
Exact Formulas for Every Area Conversion
Precise multipliers for all common conversions — verify manually or use as a formula reference
| Convert | Formula | Example |
|---|---|---|
| sq ft → m² | sq ft × 0.092903 | 1,000 sq ft = 92.9 m² |
| m² → sq ft | m² × 10.7639 | 100 m² = 1,076.4 sq ft |
| acre → m² | acres × 4,046.86 | 5 ac = 20,234 m² |
| m² → acre | m² ÷ 4,046.86 | 10,000 m² = 2.471 ac |
| ha → acre | ha × 2.47105 | 10 ha = 24.71 ac |
| acre → ha | acres × 0.404686 | 100 ac = 40.47 ha |
| ha → m² | ha × 10,000 | 2.5 ha = 25,000 m² |
| km² → ha | km² × 100 | 5 km² = 500 ha |
| sq yd → m² | sq yd × 0.836127 | 50 sq yd = 41.8 m² |
| sq ft → sq yd | sq ft ÷ 9 | 450 sq ft = 50 sq yd |
| sq in → cm² | sq in × 6.4516 | 10 sq in = 64.5 cm² |
| sq mi → km² | sq mi × 2.58999 | 10 sq mi = 25.9 km² |
Familiar Spaces in Every Unit
Anchor abstract area values to things you can visualise — and verify your conversions make physical sense
A4 sheet of paper
0.0623 m²0.671 sq ft210 × 297 mm
Standard parking spot
~14 m²~150 sq ft2.5 m × 5.5 m typical
1-car garage
~18 m²~200 sq ftSingle bay
Studio apartment
25–35 m²270–380 sq ftTypical city studio
Tennis court
260 m²2,808 sq ftSingles court
Basketball court
420 m²4,520 sq ftNBA regulation
Football pitch
~7,140 m²~76,850 sq ftFIFA standard
1 acre
4,047 m²43,560 sq ft= 0.405 hectare
Central Park (NYC)
3,410,000 m²36.7M sq ft341 hectares / 843 acres
Typical Room Areas in sq ft, m² and sq yd
Use this reference to convert room measurements for flooring, tiling, and real estate listings
| Room Type | Square Feet (sq ft) | Square Meters (m²) | Square Yards (sq yd) |
|---|---|---|---|
| Small bathroom | 40–60 sq ft | 3.7–5.6 m² | 4.4–6.7 sq yd |
| Large bathroom | 80–150 sq ft | 7.4–13.9 m² | 8.9–16.7 sq yd |
| Small bedroom | 70–100 sq ft | 6.5–9.3 m² | 7.8–11.1 sq yd |
| Master bedroom | 130–200 sq ft | 12–18.6 m² | 14.4–22.2 sq yd |
| Living room | 150–300 sq ft | 13.9–27.9 m² | 16.7–33.3 sq yd |
| Kitchen | 80–120 sq ft | 7.4–11.1 m² | 8.9–13.3 sq yd |
| Garage (1-car) | 150–250 sq ft | 13.9–23.2 m² | 16.7–27.8 sq yd |
| Standard plot | ~6,000 sq ft | ~557 m² | ~667 sq yd |
Flooring tip: Measure length × width in feet to get sq ft, then divide by 9 for sq yd (carpet) or multiply by 0.0929 for m² (EU tiles). Always add 10% for cuts and waste. Enter your measured sq ft into the converter above to get all units simultaneously.
Measure Once, Convert to Any Unit
Three steps from measurement to clipboard — works on site, in the office, or in the classroom
Enter your area
Type or paste: 1,250 sq ft, 0.75 ac, 85.5 m², 2.3 ha. Decimals fully supported.
Select the source unit
Pick from mm², cm², sq in, sq ft, sq yd, m², are, acre, ha, km², sq mi. All outputs refresh instantly.
Copy any result
Tap Copy on any row — sq ft, m², acres, ha. One press, value goes to clipboard.
Area Conversion Questions Answered
Covering sq ft, m², acres, ha, sq yd, sq in, km², sq mi — with exact formulas and real-estate, farming, and flooring examples
Core Area Conversions
Enter your square foot (sq ft) value, select sq ft as the source unit — the square meter (m²) result appears instantly. Formula: sq ft × 0.092903 = m². Example: 1,000 sq ft = 92.9 m². In reverse: m² × 10.7639 = sq ft. This is the most common area conversion for comparing US real estate listings with European property markets.
1 square meter (m²) = 10.7639 square feet (sq ft). 1 acre = 43,560 sq ft = 4,046.86 m². Quick references: 100 m² = 1,076.4 sq ft; 500 m² = 5,382 sq ft; 1,000 m² = 10,764 sq ft. An acre is a common US/UK land unit — roughly the size of a football pitch (minus end zones).
Acres to sq ft: acres × 43,560 = sq ft. Example: 0.5 acres = 21,780 sq ft. Sq ft to acres: sq ft ÷ 43,560 = acres. Example: 87,120 sq ft = 2 acres. Acres are used for US/UK land, farms, and large property plots. 1 acre = 4,046.86 m² = 0.4047 hectare. The acre derives from the area a yoke of oxen could plough in a day.
Hectares to acres: ha × 2.47105 = acres. Example: 10 ha = 24.71 acres. Acres to hectares: acres × 0.40469 = ha. Example: 100 acres = 40.47 ha. The hectare (ha) is the SI-adjacent metric unit for land — 1 ha = 10,000 m² = 2.471 acres. European farms use hectares; UK and US farms use acres. International crop yield data always uses hectares.
1 hectare (ha) = 10,000 square meters (m²) exactly. 1 acre = 4,046.86 m². In sq ft: 1 ha = 107,639 sq ft; 1 acre = 43,560 sq ft. In km²: 1 ha = 0.01 km²; 100 ha = 1 km². Quick scale: a standard athletics track encloses about 1 ha; a typical suburban house plot is about 0.04–0.1 ha (400–1,000 m²).
m² to sq ft: m² × 10.7639 = sq ft. Example: 85 m² = 915 sq ft. km² to m²: km² × 1,000,000 = m². Example: 2.5 km² = 2,500,000 m². In hectares: 2.5 km² = 250 ha. These conversions are common when interpreting architectural drawings (m²) for US clients (sq ft), or scaling geographic map areas between km² and m².
sq in to sq ft: sq in ÷ 144 = sq ft (12² = 144). Example: 288 sq in = 2 sq ft. sq ft to sq yd: sq ft ÷ 9 = sq yd (3² = 9). Example: 450 sq ft = 50 sq yd. These are both pure imperial conversions — multiply or divide by the square of the linear conversion factor (12 in/ft → 144; 3 ft/yd → 9). Used in carpet, fabric, and tile purchasing.
UntangleTools Area Converter supports: square millimeter (mm²), square centimeter (cm²), square inch (sq in), square foot (sq ft), square yard (sq yd), square meter (m²), are, acre (ac), hectare (ha), square kilometer (km²), square mile (sq mi). Enter any value, select source unit, see all outputs simultaneously. One-click copy per row. Free at untangletools.com/unit/category/area.
1,000 sq ft = 92.90 m². 5,000 sq ft = 464.5 m². Formula: sq ft × 0.092903 = m². More examples: 1,500 sq ft = 139.4 m²; 2,000 sq ft = 185.8 m²; 3,000 sq ft = 278.7 m². A useful mental shortcut: divide sq ft by 10.76 (or multiply by ~0.093) for a fast m² estimate. The tool gives full precision automatically.
100 sq ft = 9.29 m². 500 sq ft = 46.45 m². Formula: sq ft × 0.092903 = m². References: 100 sq ft ≈ a small study or walk-in wardrobe; 500 sq ft ≈ a one-room studio apartment. In sq yd: 100 sq ft = 11.1 sq yd; 500 sq ft = 55.6 sq yd. In acres: 100 sq ft = 0.0023 ac; 500 sq ft = 0.0115 ac.
Using the Tool
Three steps: (1) Type or paste any area value — integer or decimal (e.g., 1,250 sq ft, 0.75 acres, 85.5 m²). (2) Select the source unit from the dropdown: mm², cm², sq in, sq ft, sq yd, m², are, ac, ha, km², or sq mi. (3) All outputs update instantly. Tap the Copy button next to any row to copy that value to your clipboard.
Yes. The converter handles SI metric (mm², cm², m², are, ha, km²) and imperial / US customary (sq in, sq ft, sq yd, acre, sq mi) simultaneously. Select any metric unit and see all imperial equivalents, or vice versa. No mode switch needed — all outputs appear in a single view for instant cross-system comparison.
Yes — all of them. Full unit support: mm², cm², sq in, sq ft, sq yd, m², are, ac (acre), ha (hectare), km², sq mi (square mile). Every unit is selectable as the source input and all others output simultaneously. One-click copy on each row. No login required at untangletools.com/unit/category/area.
Yes. Decimal inputs are fully supported: 1,250.5 sq ft → 116.16 m²; 0.75 acres → 3,035.1 m² → 1.852 ha × 10⁻¹; 2.35 ha → 5.807 acres. Full floating-point precision is maintained throughout — no rounding at the input stage. Useful for property listings with fractional areas, partial plot sales, and room measurement decimals.
Yes. All conversion factors use exact internationally defined values: 1 international foot = 0.3048 m exactly (since 1959), so 1 sq ft = 0.09290304 m² exactly; 1 acre = 4,840 sq yd = 43,560 sq ft = 4,046.8564224 m² exactly. The tool uses 64-bit floating-point precision. Completely free at untangletools.com/unit/category/area — no account.
Real Estate, Students & Builders
Multiply m² by 10.7639: m² × 10.7639 = sq ft. Examples: 50 m² = 538.2 sq ft; 100 m² = 1,076.4 sq ft; 200 m² = 2,152.8 sq ft. In reverse: sq ft × 0.09290 = m². The factor 10.7639 comes from (1 ÷ 0.3048)² = (3.28084)² — the square of the feet-per-meter conversion. Area conversions always use the square of the corresponding length factor.
1,500 m² = 16,145 sq ft (≈ a large commercial floor plate). 2,000 m² = 21,528 sq ft (≈ a small supermarket). Formula: m² × 10.7639 = sq ft. In acres: 1,500 m² = 0.371 acres; 2,000 m² = 0.494 acres. In hectares: 1,500 m² = 0.15 ha; 2,000 m² = 0.2 ha. These sizes are common in commercial real estate and large residential plot listings.
Acres to hectares: acres × 0.40469 = ha. Examples: 50 acres = 20.23 ha; 100 acres = 40.47 ha; 640 acres = 259 ha (= 1 sq mi). Hectares to acres: ha × 2.47105 = acres. For international property listings, EU and Australian markets use hectares while UK and US markets use acres. 1 ha = 2.471 acres is the key mental anchor.
UntangleTools Area Converter is purpose-built for all three audiences. For students: instant m²↔sq ft, acres↔m², km²↔ha with formulas. For real-estate agents: sq ft↔m² and acres↔hectares for international listings. For contractors: sq yd↔sq ft↔m² for flooring, tiling, and material orders. Free, mobile-optimised, no login. Always available at untangletools.com.
Yes. The converter is fully responsive with large tap targets and a clean mobile layout. Open untangletools.com/unit/category/area in any phone browser while on site — enter the room measurement in sq ft from a laser measure app and instantly see the m² value to paste into your specification sheet. Works on iPhone, Android, and tablet browsers. No app download needed.
Flooring, Engineering & Advanced
sq yd to sq ft: sq yd × 9 = sq ft. Example: 50 sq yd = 450 sq ft. In reverse: sq ft ÷ 9 = sq yd. Example: 270 sq ft = 30 sq yd. Carpet in the US is typically priced and sold per sq yd; room measurements are taken in sq ft — always divide the sq ft area by 9 to order the right amount of carpet. Add 10–15% for waste and cutting.
sq in to cm²: sq in × 6.4516 = cm². Example: 10 sq in = 64.52 cm². sq in to mm²: sq in × 645.16 = mm². Example: 1 sq in = 645.16 mm². These conversions are common in mechanical engineering drawings (imperial dimensions converted to metric), screen size calculations (diagonal inches → display area in cm²), and semiconductor die area sizing (mm²).
km² to hectares: km² × 100 = ha. Example: 25 km² = 2,500 ha. ha to acres: ha × 2.47105 = acres. Example: 2,500 ha = 6,177.6 acres. For very large areas: 1 sq mi = 258.999 ha = 640 acres = 2.59 km². These conversions are essential in forestry, national park management, agricultural census reporting, and geographic information systems (GIS).
Square foot (sq ft) and square meter (m²) measure area of rooms, buildings, and small plots — sq ft in the US/UK, m² in metric countries. Acre (ac) is a larger land unit used in the US/UK — 1 acre = 43,560 sq ft = 4,047 m². Hectare (ha) is the metric equivalent used in EU, Australia, and international contexts — 1 ha = 10,000 m² = 2.471 acres. Rule of thumb: use m²/sq ft for rooms; acres/hectares for land parcels; km²/sq mi for geographic regions.
The current unit set covers all practical everyday, real-estate, agricultural, and engineering units: mm², cm², sq in, sq ft, sq yd, m², are, acre, hectare, km², sq mi. For reference: 1 barn = 10⁻²⁸ m² (nuclear physics cross-section); 1 square micrometer (μm²) = 10⁻¹² m² (semiconductor lithography). These advanced scientific units are on the roadmap. Bookmark untangletools.com/unit/category/area for updates.
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