Convert area between square feet, square metres, square kilometres, acres, hectares, square miles and more — with exact conversion factors.
What Is an Area Converter?
An area converter translates land and surface measurements between units: 1 acre = 4,046.8564 square metres = 43,560 square feet. The imperial units come from old English land measures (an acre was the area a yoke of oxen could plough in a day), while the metric units are clean powers of ten. Property listings mix them freely — a plot in acres, a flat in square feet, farmland in hectares — which is why one converter covering all of them earns its place.
How to Use the Area Converter
- Enter the value.
- Pick the “from” unit.
- Pick the “to” unit.
- Click “Convert Area”.
Area Converter Formula
Convert to square metres first (value × from-factor), then divide by the to-factor. All factors are exact definitions.
Worked Example
1 acre → square metres: 1 × 4,046.8564224 = 4,046.8564 m². Reverse: 100 sq ft → 100 × 0.09290304 = 9.2903 m².
How It Works, In Plain Words
Every conversion on this page passes through one hub unit: the square metre. Each of the eight units carries an exact factor that says how many square metres it contains — 1 for the square metre itself, 0.09290304 for a square foot, 10,000 for a hectare, 4,046.8564224 for an acre, and so on. When you convert, the tool first multiplies your value by the from-unit’s factor, which restates your area in square metres, and then divides by the to-unit’s factor, which restates it in the unit you asked for. The worked example shows the full journey: 1 acre becomes 1 × 4,046.8564224 = 4,046.8564 square metres, and because the to-unit is the square metre itself, the division changes nothing. Going the other way, 100 square feet becomes 100 × 0.09290304 = 9.2903 square metres. Because the factors are exact definitions rather than rounded rules of thumb — the page’s Benefits list makes the same point — converting there and back returns your starting number instead of drifting. The answer is then formatted to at most four decimal places, which keeps land-sized answers readable while small areas keep the detail they need.
Real-World Uses
First, reading a property listing across systems. A plot advertised in acres and a flat advertised in square feet cannot be compared until both speak the same unit; converting the acre figure into square feet — 43,560 of them in a single acre — puts the two side by side, and the hectare figure on a farmland listing becomes 10,000 square metres or 2.471 acres here. Second, flooring and renovation quantities. A room measured in square metres but priced in square feet (or the reverse) needs the 0.09290304 bridge the worked example uses, so the 100 sq ft that equals 9.2903 m² orders the right amount of material. Third, land paperwork and records. Deeds, surveys and agricultural documents mix imperial and metric units freely; converting an old acre figure into square metres, or a metric survey into acres, lets you check that two documents describing the same land actually agree before you sign or pay.
Benefits of Using the Area Converter
- Eight units including acre and hectare for property
- Exact defined factors — no rounding in the maths
- Both directions in one tool
- Land, flooring and construction friendly
Features of Our Tool
- Instant results in your browser
- No sign-up, no download, 100% free
- Works on mobile, tablet and desktop
- Clear step-by-step explanation below the tool
- Private — your entries never leave your device
Common Mistakes to Avoid
- Confusing acres and hectares (1 hectare = 2.471 acres)
- Mixing square and linear units — square feet are not feet
- Forgetting that “marla” and “kanal” are separate regional units (see our Marla/Kanal converter)
More Common Mistakes to Avoid
The expensive confusion is acres versus hectares: the page’s own list warns that 1 hectare = 2.471 acres, so treating the two as equal misstates a plot by well over double. A second error is converting a length and calling it an area — square feet are not feet, and a boundary measured in feet must be turned into an area before this tool can help. Third, do not force regional units through this converter: marla and kanal are not among its eight units, and the page points you to the Marla/Kanal converter for those. Finally, round only at the end. The factors here are exact, so copying a shortened figure like 4,046.86 into a second calculation throws away precision the tool was keeping for you.
Frequently Asked Questions
How many square metres in an acre?
4,046.8564 m².
How many square feet in an acre?
43,560 sq ft.
How many acres in a hectare?
2.471 acres.
How do I convert square feet to square metres?
Multiply by 0.09290304 — 100 sq ft = 9.2903 m².
What is the difference between an acre and a hectare?
An acre is 4,046.86 m² (imperial); a hectare is 10,000 m² (metric) — the hectare is about 2.47× larger.
How many square metres are in a hectare?
10,000 square metres — the hectare is defined as exactly 10,000 m², which is also why it equals 2.471 acres in this tool.
Why does the tool convert through square metres instead of directly?
Because one shared hub keeps every pair of units consistent: each unit has a single exact factor into square metres, so any conversion is a multiply followed by a divide, and converting back returns your starting value.