Area converter

Client

Enter one area with a unit—for example 100 m², 2 acres, or 1200 sq ft—and see every common column from millimeters squared through hectares. All math runs locally in your browser.

Area

?

Uses the international inch and foot (1 in = 0.0254 m) for in², ft², yd², and the US survey acre (43,560 ft²). Hectare is exactly 10,000 m².

Load example: · ·

UnitValueCopy
mm²100000000 mm²
cm²1000000 cm²
m²100 m²
km²0.0001 km²
in²155000.310001 in²
ft²1076.39104167 ft²
yd²119.59900463 yd²
acre0.0247105381467 acre
ha0.01 ha

Common use cases

  • Turn a floor plan noted in square feet into square meters for international listings.
  • Compare parcel sizes when one document uses acres and another uses hectares.
  • Sanity-check HVAC or flooring quotes that mix ft² and m².

Common mistakes to avoid

  • Length units are not area

    Doubling a side length quadruples area. Paste an area string (ft², m², acres)—not a single edge length unless you square it yourself.

  • Survey vs international foot (rare drift)

    Modern definitions use the international foot. Legacy survey data in some regions can differ slightly at large acreages—verify legal descriptions when precision is contractual.

FAQ

Are these values sent to Toolcore?

No. Conversions run in your browser from the text you enter.

Which acre is used?

The US survey acre as 43,560 square feet, with the foot defined as exactly 0.3048 m (international foot).

Common search terms

Phrases people search for that match this tool. See the full long-tail keyword index.

  • acres to hectares converter online
  • square feet to square meters in browser
  • sq ft to acres calculator

More tools

Related utilities you can open in another tab—mostly client-side.