How many square meters are in a hectare?

Exactly 10,000, by definition rather than by measurement: the hectare was built as the area of a 100 m by 100 m square. Nothing is rounded anywhere in the conversion, so every answer terminates. 0.5 ha is 5,000 m², 2 ha is 20,000 m², 2.5 ha is 25,000 m², 10 ha is 100,000 m² and 100 ha is 1,000,000 m², which is also exactly 1 km².

What is the formula for hectares to square meters?

m² = ha × 10,000, and back the other way ha = m² × 0.0001. Both directions are exact because the factor is a power of ten: 10,000 m² returns exactly 1 ha, 5,000 m² returns 0.5 ha and 100 m² returns 0.01 ha. The swap button between the two boxes reverses the pair, which turns this into a square metres to hectares converter without a reload.

Worked example: how big is 2.5 hectares?

25,000 m². Type 2.5 into the From box and the list underneath prints the same plot in the other area units at once, among them 6.17763453668 acres, 269,097.760418 ft² and 0.025 km². Each row carries its own Copy button, and Copy result in the strip above copies the headline figure without the thousands separators it is displayed with.

How many acres is a hectare?

2.47105381467 acres, using the international acre of exactly 4,046.8564224 m², which is the acre in this table. So 0.5 ha is 1.23552690734 ac, 10 ha is 24.7105381467 ac and 100 ha is 247.105381467 ac, and going the other way 1 acre is 0.40468564224 ha. The older US survey acre, about 4,046.87261 m², would make a hectare roughly 2.471044 acres instead, a figure this page does not print: the survey foot it was built on was retired at the end of 2022.

Is a hectare a square kilometre?

No, and the gap is a factor of 100. A hectare is 100 m by 100 m and a square kilometre is 1,000 m by 1,000 m, so 1 ha is 0.01 km², 100 ha is 1 km² and 250 ha is 2.5 km². The square in the name is what catches people out: the lengths differ by a factor of ten, so the areas differ by a factor of a hundred.

Why does typing 2,5 give 250,000 square metres?

Because a comma is read as a thousands separator here rather than a decimal comma, so 2,5 is parsed as 25 and 25 ha is 250,000 m². Type 2.5 for two and a half hectares. Grouping commas in a large figure are fine, so 1,000 and 1000 both work, and scientific notation is accepted too, with 1e2 read as 100. Anything the parser cannot read as a number leaves a short message under the boxes saying so, rather than a silent zero.

What else does the page show for 1 hectare?

The same area in every common area unit at once: 100,000,000 cm², 10,000 m², 0.01 km², 15,500,031.0001 in², 107,639.104167 ft², 11,959.900463 yd², 2.47105381467 ac and 0.00386102158542 mi². The readout strip carries a Show 1 more switch for the uncommon unit, which adds the square millimetre row, where a hectare reads 10,000,000,000 mm².

Why does the page open on hectares and square metres when I last converted something else?

Because a page that names a pair should show that pair. This one sets hectares and square metres on arrival, ahead of whatever the converter last remembered, and it leaves the main unit converter alone: go back to the converter itself and it is still on the pair you left it on. The number you last typed does travel with you. The conversion is arithmetic against a table of factors that ships with the page, so it runs in your browser with nothing uploaded and no account.

Hectares to Square Meters Converter

A hectare is a square hectometre, which is a square 100 metres on each side, so a hectare is exactly 10,000 square metres and the conversion is a multiplication with no rounding in it at all: m² = ha × 10,000. In decimal that is the point moving four places to the right, which is why 0.1 ha is 1,000 m², 0.25 ha is 2,500 m², 0.5 ha is 5,000 m², 1.5 ha is 15,000 m², 2.5 ha is 25,000 m² and 10 ha is 100,000 m². It runs back just as cleanly: ha = m² / 10,000, so 1 m² is 0.0001 ha, 1,000 m² is 0.1 ha and 7,140 m², the playing area of a full size football pitch at 105 by 68 metres, is 0.714 ha. The unit sits between the square metre and the square kilometre, and the two steps are the same size: 100 ha is exactly 1 km². This page opens with Hectare (ha) in the From box and Square metre (m²) in the To box, ahead of whatever pair the converter last remembered, and the list under the answer gives the same area in the rest of the common area units at once, so 1 ha also reads 2.47105381467 acres, 107,639.104167 ft² and 11,959.900463 yd² without touching a menu. Type the decimal with a point: a comma is read as a thousands separator, so 2,5 ha is taken as 25 ha and returns 250,000 m².

From

To10,000

1 ha in every area unit

Square centimetrecm²
100,000,000
Square metrem²
10,000
Square kilometrekm²
0.01
Square inchin²
15,500,031.0001
Square footft²
107,639.104167
Square yardyd²
11,959.900463
Acreac
2.47105381467
Square milemi²
0.00386102158542

Common questions

How many square meters are in a hectare?: Exactly 10,000, by definition rather than by measurement: the hectare was built as the area of a 100 m by 100 m square. Nothing is rounded anywhere in the conversion, so every answer terminates. 0.5 ha is 5,000 m², 2 ha is 20,000 m², 2.5 ha is 25,000 m², 10 ha is 100,000 m² and 100 ha is 1,000,000 m², which is also exactly 1 km².
What is the formula for hectares to square meters?: m² = ha × 10,000, and back the other way ha = m² × 0.0001. Both directions are exact because the factor is a power of ten: 10,000 m² returns exactly 1 ha, 5,000 m² returns 0.5 ha and 100 m² returns 0.01 ha. The swap button between the two boxes reverses the pair, which turns this into a square metres to hectares converter without a reload.
Worked example: how big is 2.5 hectares?: 25,000 m². Type 2.5 into the From box and the list underneath prints the same plot in the other area units at once, among them 6.17763453668 acres, 269,097.760418 ft² and 0.025 km². Each row carries its own Copy button, and Copy result in the strip above copies the headline figure without the thousands separators it is displayed with.
How many acres is a hectare?: 2.47105381467 acres, using the international acre of exactly 4,046.8564224 m², which is the acre in this table. So 0.5 ha is 1.23552690734 ac, 10 ha is 24.7105381467 ac and 100 ha is 247.105381467 ac, and going the other way 1 acre is 0.40468564224 ha. The older US survey acre, about 4,046.87261 m², would make a hectare roughly 2.471044 acres instead, a figure this page does not print: the survey foot it was built on was retired at the end of 2022.
Is a hectare a square kilometre?: No, and the gap is a factor of 100. A hectare is 100 m by 100 m and a square kilometre is 1,000 m by 1,000 m, so 1 ha is 0.01 km², 100 ha is 1 km² and 250 ha is 2.5 km². The square in the name is what catches people out: the lengths differ by a factor of ten, so the areas differ by a factor of a hundred.
Why does typing 2,5 give 250,000 square metres?: Because a comma is read as a thousands separator here rather than a decimal comma, so 2,5 is parsed as 25 and 25 ha is 250,000 m². Type 2.5 for two and a half hectares. Grouping commas in a large figure are fine, so 1,000 and 1000 both work, and scientific notation is accepted too, with 1e2 read as 100. Anything the parser cannot read as a number leaves a short message under the boxes saying so, rather than a silent zero.
What else does the page show for 1 hectare?: The same area in every common area unit at once: 100,000,000 cm², 10,000 m², 0.01 km², 15,500,031.0001 in², 107,639.104167 ft², 11,959.900463 yd², 2.47105381467 ac and 0.00386102158542 mi². The readout strip carries a Show 1 more switch for the uncommon unit, which adds the square millimetre row, where a hectare reads 10,000,000,000 mm².
Why does the page open on hectares and square metres when I last converted something else?: Because a page that names a pair should show that pair. This one sets hectares and square metres on arrival, ahead of whatever the converter last remembered, and it leaves the main unit converter alone: go back to the converter itself and it is still on the pair you left it on. The number you last typed does travel with you. The conversion is arithmetic against a table of factors that ships with the page, so it runs in your browser with nothing uploaded and no account.

Conversion factors are the exact legal definitions where one exists. An inch is exactly 2.54 cm and a pound exactly 0.45359237 kg, so those conversions are exact rather than approximate. Temperature uses offsets rather than factors, and that is shown in the working.