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How do I convert area between square metres, acres and hectares?

Type a value into AnyTool Area Converter and pick the units. It instantly converts both ways between square metres, square kilometres, hectares, ares, acres, square miles, square yards, square feet, square inches, roods and townships, and shows the value in every unit at once in a copyable table. Everything is calculated in your browser, so nothing is uploaded.

  • Live two-way conversion — type in either field and the other updates
  • Metric (mm², cm², m², km², are, hectare) and imperial/US (in², ft², yd², acre, mi², rood, township)
  • See the value in every unit at once, each row copyable
  • Exact factors through a square-metre base (1 acre = 4046.8564224 m²)
  • 100% in your browser — no upload, no signup, works offline

What is

Area Conversion

Area conversion changes a measurement of surface area from one unit to another — for example square metres to acres. Each unit relates to a square-metre base by a single exact factor, so any unit converts to any other by multiplying through the base; for instance one acre is 4046.8564224 square metres and one hectare is exactly 10,000 square metres.

Converters

Related terms

Square metre to acreHectareSquare footSquare mile

Frequently Asked Questions

One acre is 4046.8564224 square metres, or about 0.4047 hectares.

One acre equals exactly 4046.8564224 square metres, which is 4840 square yards or about 0.4047 hectares. The acre derives from the international yard (1 yd = 0.9144 m), so the factor is exact. To convert acres to square metres, multiply by 4046.8564224; to go the other way, divide by the same number.

Multiply hectares by about 2.47105. So 1 hectare is roughly 2.471 acres.

One hectare is exactly 10,000 square metres, and one acre is 4046.8564224 square metres, so a hectare equals 10,000 ÷ 4046.8564224 ≈ 2.47105 acres. To convert hectares to acres, multiply by 2.47105; to convert acres to hectares, multiply by 0.404686.

No. Every calculation runs in your browser, so nothing is sent to a server and it works offline.

AnyTool Area Converter computes every result locally in JavaScript using exact factors through a square-metre base. No value is uploaded, there is no tracking, and the page keeps working offline after the first load.

A rood is a quarter of an acre (1011.7 m²); a township is 36 square miles used in US land surveys.

A rood is an old English land unit equal to one quarter of an acre, exactly 1011.7141056 square metres. A township is a US Public Land Survey unit equal to 36 square miles, exactly 93,239,571.972096 square metres. AnyTool converts both alongside everyday metric and imperial area units.

Detailed Explanation

Methodology

How the Area Converter Works

AnyTool Area Converter performs every calculation in the browser. Each unit declares a single exact factor relating it to a shared square-metre base, so any unit converts to any other through square metres without an N-by-N formula table. Imperial and US customary units derive from the international yard (1 yd = 0.9144 m exactly), making every factor exact: one acre is 4046.8564224 m², one hectare is 10,000 m², one square mile is 2,589,988.110336 m², and one square foot is 0.09290304 m². A value is converted to the square-metre base and then back into the target unit.

  • Thirteen units spanning metric and imperial/US customary area
  • Square metre is the shared base; each unit defines one exact factor
  • Conversion is value to base to value, so any unit maps to any other
  • Editing either field converts both directions live
  • All arithmetic is client-side JavaScript — no server round-trip
How It Works

All Units, Precision and Land Measures

A single input is converted into every unit at once in a copyable table, with the source and target rows highlighted. A decimals control sets precision, and magnitudes that are very large or very small automatically switch to scientific notation so results stay readable. Alongside everyday metric and imperial units the converter includes land-survey measures such as the are, hectare, acre, rood (a quarter-acre) and township (36 square miles), with a formula reference and a scale table.

  • Convert-to-all table shows the value in every unit simultaneously
  • Each unit row is individually copyable
  • Adjustable precision with automatic scientific notation for extremes
  • Includes land units: are, hectare, acre, rood and township
  • Built-in formula reference and a square-metre scale table
Privacy & Security

Privacy and Offline Use

Because all conversion runs in the browser, no value is sent to a server, there is no account or tracking, and the page works offline after first load. The converter is built on a shared, unit-tested conversion engine that other AnyTool unit converters reuse, so behaviour is consistent across the site.

Area conversion: in-browser (AnyTool) vs typical online converters
CapabilityAnyToolTypical online converters
ProcessingRuns in your browserOften server-side
Units13 incl. acre, hectare, rood, townshipOften common units only
Two-way inputEdit either field, both updateUsually one-direction with a button
All units at onceYes, copyable tableOften one target at a time
Precision controlAdjustable decimalsFrequently fixed
Works offlineYes (PWA)No
Cost / signupFree, no signupOften ad-heavy or gated

AnyTool converts every unit locally through a square-metre base and uploads nothing.