b2KIT

Area Converter

Convert between square meters, acres, hectares, square feet, and other area units.

How to Use Area Converter

  1. 1

    Enter a value

    Type the area measurement you want to convert.

  2. 2

    Select source unit

    Choose the unit you are converting from, like square meters.

  3. 3

    Choose target unit

    Pick the unit to convert to and see the result instantly.

Tested tool guide Math and conversion tools Checked July 30, 2026

What Area Converter does, with a checked example

The area converter uses square meters as an internal reference and simultaneously reports square inches, feet, yards, miles, acres, hectares, and square kilometers. Each source value is multiplied by its square-meter factor and then divided by the target factor, avoiding a web of pairwise formulas.

Worked example

A concrete input and expected output from the current implementation.

Input

1 acre

Expected output

4,046.8564224 square meters; 0.40468564224 hectares

The international acre is defined as 4,840 square yards. With the exact yard-to-meter relationship, that equals 4,046.8564224 square meters.

How the result is produced

1

Area factors are squared length relationships

One foot is 0.3048 meter exactly, so one square foot is 0.09290304 square meter. A linear conversion factor cannot be reused without squaring it.

2

One reference unit simplifies verification

Every source first becomes square meters. Converting from that reference to all target units keeps the calculation path consistent.

Good uses

  • Translate property, room, or land-area measurements.
  • Compare hectares, acres, and square miles.
  • Create a set of equivalent values for documentation.

Limits and checks

  • Area conversion does not account for measurement uncertainty.
  • Historical acre and foot definitions can differ from modern international units.
  • Round the result to precision supported by the source measurement.

Common questions

Why is one square foot not 0.3048 square meter?

Area uses two dimensions. Squaring 0.3048 gives 0.09290304 square meter per square foot.

How many hectares are in one square kilometer?

One square kilometer contains 1,000,000 square meters, while one hectare contains 10,000, so the answer is 100 hectares.

References and verification

The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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