Units made clear

Acre vs hectare

What are they, and what does the difference actually look like?

Two things. One honest scale.

Meet the pair

What these two things are

1 acre

The quantity is exact as entered.

4,047 m²Area

1 hectare

The quantity is exact as entered.

10,000 m²Area

1 hectare has about 2.47 times the area of 1 acre.

True area
Area ratio · 1 : 2.47
01
1 acre4,047 m²Area
02
1 hectare10,000 m²Area
Known rectangular footprints keep their physical sides. Other shapes are equal-area squares, not maps. Overlap compares area; it does not prove a physical fit.
Measurements, assumptions & sources +

1 acre

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

1 hectare

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

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Measurement details

Why these numbers?

The visual compares area with area. The records below preserve each value’s basis and caveats.

1 acre

4,047 m²

Area · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

1 hectare

10,000 m²

Area · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

Comparing
Area ↔ Area
Relative size
1 hectare is larger on this measurement by a factor of about 2.47. 1 hectare's selected measurement is approximately 147% greater than 1 acre's.

How to read the visual

The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.

A hectare is 10,000 square metres. An acre uses the international foot definition. Both measure area, regardless of the shape of the land.

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