Acre naar vierkante kilometer omzetter

Zet acre direct om naar vierkante kilometer. Gratis online eenhedenconverter.

Invoerwaarde

Van eenheid

Acres

Square Kilometers

1 ac = 0.004047 km2

Referentietabel

1 ac

0.004047

km2

5 ac

0.020234

km2

10 ac

0.040469

km2

50 ac

0.202343

km2

100 ac

0.404686

km2

Conversieresultaten

Square Meters

Square Kilometers

km2

Square Miles

mi2

Hectares

Conversion Formula

1 Acres = 0.004047 Square Kilometers

1 Square Kilometers = 247.105 Acres

Quick Reference Table

Acres	Square Kilometers
1 ac	0.004047 km2
5 ac	0.02023 km2
10 ac	0.04047 km2
50 ac	0.2023 km2
100 ac	0.4047 km2
500 ac	2.02343 km2
1,000 ac	4.04686 km2

About These Units

Converting Acres to Square Kilometers comes down to a single multiplication: each Acres equals 0.004047 Square Kilometers. For example, 10 Acres works out to 0.04047 Square Kilometers. Use the live calculator above for any value, or follow the exact formula and reference table below — no rounding errors, no guesswork.

Area measures the size of a two-dimensional surface — a piece of land, a room, a wall to paint. The metric system uses square meters (m²) and hectares for land; imperial uses square feet and acres. Real estate, agriculture, construction, and landscaping all depend on accurate area conversion, especially in international markets where 'a 100 m² apartment' and 'a 1,076 ft² apartment' describe the same space.

About Acres

The acre (ac) is 4,047 m² (43,560 sq ft) — historically the area one ox could plow in a day.

History

An ancient unit codified in English statute law; varied regionally before standardization.

Common Use

Used for US/UK real estate, farmland sales, ranch sizes, and golf course measurements.

About Square Kilometers

The square kilometer (km²) is 1,000,000 square meters — used for large geographic areas.

History

Part of the SI; equivalent to a square 1 km × 1 km.

Common Use

Used for country/city sizes, forest fires coverage, glaciers, and large agricultural lands.

When Conversion Is Needed

Acres and Square Kilometers belong to different measurement systems, so conversion becomes necessary when comparing values across the two units, or when forwarding a document or specification written in one unit to someone who uses the other. The quick-reference table on this page shows how common values in Acres translate to Square Kilometers, so memorizing or bookmarking the most frequently-used values is often a worthwhile shortcut.

Real-World Use Cases

Real Estate

Apartment and house listings worldwide use different area units — Asia and Europe favor m², North America uses ft². Converting accurately is essential when comparing prices per unit area across markets.

Agriculture & Land Use

Farmland is sold in acres (US/UK) or hectares (rest of world). 1 hectare ≈ 2.47 acres ≈ 1 football field. Yield calculations (e.g., bushels per acre vs tons per hectare) require precise conversion.

Related Converters

Square Meters to Square Kilometers Square Meters to Square Miles Square Meters to Acres Square Meters to Hectares Square Kilometers to Square Meters Square Kilometers to Square Miles Square Kilometers to Acres Square Kilometers to Hectares

Frequently Asked Questions

How do I convert Acres to Square Kilometers?

Multiply the number of Acres by 0.004047. For instance, 10 Acres × 0.004047 = 0.04047 Square Kilometers. The calculator on this page does it instantly as you type.

How many Square Kilometers are in one Acres?

One Acres equals exactly 0.004047 Square Kilometers. Going the other way, one Square Kilometers equals 247.105 Acres.

Is this Acres-to-Square Kilometers conversion accurate?

Yes. The result uses double-precision arithmetic and internationally accepted conversion constants, rounding only for display — so it is reliable for engineering, cooking, shipping, and schoolwork alike.