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Area Converter

Enter a value to instantly convert between area units.

Area conversions come up when buying flooring or paint (square feet to square meters), comparing property listings (acres to hectares), or interpreting land-use statistics in the news. Because area is derived by squaring a length unit, area conversion factors are the square of the corresponding length factor — which means small differences in length conversions become much larger differences in area, a detail that catches people off guard when converting room dimensions or land parcels.

Precision4 dp

1 Acre = 43560 Square Foot

Key Formulas

Acre → Square Foot

ft² = ac × 43560

Square Foot → Acre

ac = ft² × 0.0000229568

Hectare → Acre

ac = ha × 2.47105

Acre → Hectare

ha = ac × 0.404686

Popular Conversions

Square Meter to Square Foot Square Foot to Square Meter Square Foot to Acre Acre to Square Foot Acre to Hectare Hectare to Acre

All Area Conversions

Square Meter to Square Foot Square Foot to Square Meter Square Foot to Acre Acre to Square Foot Acre to Hectare Hectare to Acre Square Meter to Square Kilometer Square Meter to Square Centimeter Square Meter to Square Millimeter Square Meter to Square Inch Square Meter to Square Yard Square Meter to Square Mile Square Meter to Acre Square Meter to Hectare Square Kilometer to Square Meter Square Kilometer to Square Centimeter Square Kilometer to Square Millimeter Square Kilometer to Square Inch Square Kilometer to Square Foot Square Kilometer to Square Yard Square Kilometer to Square Mile Square Kilometer to Acre Square Kilometer to Hectare Square Centimeter to Square Meter Square Centimeter to Square Kilometer Square Centimeter to Square Millimeter Square Centimeter to Square Inch Square Centimeter to Square Foot Square Centimeter to Square Yard Square Centimeter to Square Mile Square Centimeter to Acre Square Centimeter to Hectare Square Millimeter to Square Meter Square Millimeter to Square Kilometer Square Millimeter to Square Centimeter Square Millimeter to Square Inch Square Millimeter to Square Foot Square Millimeter to Square Yard Square Millimeter to Square Mile Square Millimeter to Acre Square Millimeter to Hectare Square Inch to Square Meter Square Inch to Square Kilometer Square Inch to Square Centimeter Square Inch to Square Millimeter Square Inch to Square Foot Square Inch to Square Yard Square Inch to Square Mile Square Inch to Acre Square Inch to Hectare Square Foot to Square Kilometer Square Foot to Square Centimeter Square Foot to Square Millimeter Square Foot to Square Inch Square Foot to Square Yard Square Foot to Square Mile Square Foot to Hectare Square Yard to Square Meter Square Yard to Square Kilometer Square Yard to Square Centimeter Square Yard to Square Millimeter Square Yard to Square Inch Square Yard to Square Foot Square Yard to Square Mile Square Yard to Acre Square Yard to Hectare Square Mile to Square Meter Square Mile to Square Kilometer Square Mile to Square Centimeter Square Mile to Square Millimeter Square Mile to Square Inch Square Mile to Square Foot Square Mile to Square Yard Square Mile to Acre Square Mile to Hectare Acre to Square Meter Acre to Square Kilometer Acre to Square Centimeter Acre to Square Millimeter Acre to Square Inch Acre to Square Yard Acre to Square Mile Hectare to Square Meter Hectare to Square Kilometer Hectare to Square Centimeter Hectare to Square Millimeter Hectare to Square Inch Hectare to Square Foot Hectare to Square Yard Hectare to Square Mile

About Area Conversions

History & Background

Area units generally derive from length units of the same era and region: the square meter and hectare (10,000 square meters) are clean metric definitions, while the square foot, acre, and square mile derive from English units with practical agricultural origins — the acre, for instance, was historically defined as the area a team of oxen could plow in a day, later standardized as 43,560 square feet. Because the acre and the hectare come from entirely different base units (feet vs. meters), their conversion factor (1 hectare ≈ 2.471 acres) is an irregular decimal with no simple fraction, unlike many length conversions.

How to Use This Converter

Select your starting and target area units and enter a value for an instant conversion. Remember that because area is a squared quantity, a small percentage difference in a length unit becomes roughly double that percentage in area — so always use the area-specific conversion factor rather than squaring a length conversion factor yourself, to avoid compounding rounding errors.

Frequently Asked Questions

Why is the conversion factor for acres to hectares such an awkward number?

Because the hectare is defined cleanly in meters (10,000 m²) while the acre is defined in feet (43,560 ft²) — and the foot-to-meter conversion itself isn't a round number. When you square an already-irregular length conversion factor, the result (1 hectare ≈ 2.47105 acres) is even less round. There's no way to avoid this; it's a consequence of the two units originating in different measurement systems.

How do I convert room dimensions in feet to square meters for flooring?

Convert each dimension (length and width) to meters first, then multiply them together to get square meters — or convert the already-calculated square footage using the square feet to square meters conversion factor directly. Both approaches give the same result; converting the final area is usually faster if you already have the square footage from a floor plan.

What's the difference between a square mile and an acre?

A square mile is exactly 640 acres. Square miles are typically used for large areas like counties, national parks, or wildfire extents, while acres are more common for individual properties, farms, or smaller land parcels. Both are imperial/US customary units with metric equivalents (square kilometers and hectares respectively).

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