How many square meters are in a hectare?

A hectare is exactly 10,000 m², the area of a 100 m by 100 m square. Thus 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 or exactly 1 km². The defined factor is exact, but displayed and copied output still rounds beyond twelve significant digits.

What is the formula for hectares to square meters?

m² = ha × 10,000, and back the other way ha = m² × 0.0001. Both use exact power-of-ten factors; displayed outputs round when needed: 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?

One hectare displays as 2.47105381467 international acres, using an acre of exactly 4,046.8564224 m². Thus 0.5 ha displays as 1.23552690734 ac, 10 ha as 24.7105381467 ac and 100 ha as 247.105381467 ac; the reverse exact definition is 1 acre = 0.40468564224 ha. The historical US survey acre is instead 43,560 square survey feet, about 4,046.87261 m², which gives about 2.471044 survey acres per hectare. Survey units are separate and are not in the menus.

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.

Can I use a decimal comma such as 2,5?

A decimal comma is refused. Enter 2.5 for two and a half hectares, which gives 25,000 m². Properly grouped thousands are accepted, so 1,000 and 1000 have the same numeric value; 1e2 is 100. A matching suffix such as 2.5 ha is accepted with Hectare selected. Fractions and compound measurements are refused. Invalid or incomplete drafts do not replace saved settings, and Copy complete conversion provides the current qualified summary with selectable recovery.

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?

This focused page opens on Hectare and Square meter, while preserving the main converter’s saved unit pair. When storage is usable, a saved value and uncommon-unit preference can travel between pages. Its suffix must still match From. Valid deliberate scalar edits can save those fields after a short delay; invalid or incomplete drafts preserve the saved record. Unusable or conflicting records remain until you use Forget saved settings, which keeps the current conversion on screen. Your input and converted values are calculated in the browser and are not uploaded by the converter. The definitions arrive with the page, so conversion needs no external data lookup and keeps working offline after the page has loaded. The core conversion needs 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 uses the exact factor, with a twelve-significant-digit rounded display: 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 area of a stated 105 m by 68 m rectangle, 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 meter (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 decimals with a point: 2.5 ha is accepted with Hectare selected, while decimal-comma input such as 2,5 ha is refused. Thousands separators must be properly grouped, as in 1,000.

From

To10,000

Category: Area

Base unit: square meter

Uncommon units: Show 1 more

Foot-based areas use the international foot: one acre is 4,046.8564224 square meters. Historical US survey-foot areas require a different convention.

Results round to 12 significant digits using the listed unit definitions. Input must have a finite numeric magnitude and at most 512 significant digits. Type a single decimal or scientific number; a matching From unit suffix is accepted. Commas and grouped spaces separate thousands; decimal commas, fractions and compound measurements are refused.

1 ha in every area unit

Square centimetercm²
100,000,000
Square meterm²
10,000
Square kilometerkm²
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

Selectable complete conversion

Unit Converter — Area
Input: 1 (Hectare, ha)
Result: 10000 m² (Square meter)
Displayed values round to 12 significant digits.
Foot-based areas use the international foot: one acre is 4,046.8564224 square meters. Historical US survey-foot areas require a different convention.
All other units:
Square millimeter (mm²): 10000000000
Square centimeter (cm²): 100000000
Square meter (m²): 10000
Square kilometer (km²): 0.01
Square inch (in²): 15500031.0001
Square foot (ft²): 107639.104167
Square yard (yd²): 11959.900463
Acre (ac): 2.47105381467
Square mile (mi²): 0.00386102158542

Common questions

How many square meters are in a hectare?: A hectare is exactly 10,000 m², the area of a 100 m by 100 m square. Thus 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 or exactly 1 km². The defined factor is exact, but displayed and copied output still rounds beyond twelve significant digits.
What is the formula for hectares to square meters?: m² = ha × 10,000, and back the other way ha = m² × 0.0001. Both use exact power-of-ten factors; displayed outputs round when needed: 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?: One hectare displays as 2.47105381467 international acres, using an acre of exactly 4,046.8564224 m². Thus 0.5 ha displays as 1.23552690734 ac, 10 ha as 24.7105381467 ac and 100 ha as 247.105381467 ac; the reverse exact definition is 1 acre = 0.40468564224 ha. The historical US survey acre is instead 43,560 square survey feet, about 4,046.87261 m², which gives about 2.471044 survey acres per hectare. Survey units are separate and are not in the menus.
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.
Can I use a decimal comma such as 2,5?: A decimal comma is refused. Enter 2.5 for two and a half hectares, which gives 25,000 m². Properly grouped thousands are accepted, so 1,000 and 1000 have the same numeric value; 1e2 is 100. A matching suffix such as 2.5 ha is accepted with Hectare selected. Fractions and compound measurements are refused. Invalid or incomplete drafts do not replace saved settings, and Copy complete conversion provides the current qualified summary with selectable recovery.
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?: This focused page opens on Hectare and Square meter, while preserving the main converter’s saved unit pair. When storage is usable, a saved value and uncommon-unit preference can travel between pages. Its suffix must still match From. Valid deliberate scalar edits can save those fields after a short delay; invalid or incomplete drafts preserve the saved record. Unusable or conflicting records remain until you use Forget saved settings, which keeps the current conversion on screen. Your input and converted values are calculated in the browser and are not uploaded by the converter. The definitions arrive with the page, so conversion needs no external data lookup and keeps working offline after the page has loaded. The core conversion needs no account.

Results round to 12 significant digits using the listed unit conventions. Many factors are exact definitions; psi and parsec use rounded coefficients. Temperature includes scale offsets. Days and weeks are fixed-duration units, and unit conversion does not determine calendar dates, ambient pressure or a software label’s convention.