How do I convert acre to m²?

Use the formula shown above or enter a value to see acre converted to m² instantly.

What is the formula for acre to m²?

The converter calculates m² by applying the category-specific conversion factor for Area.

When should I use acre vs m²?

acre and m² are both part of the Area category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Area Converter & Surface Reference

Convert acre to m²

Use the live converter below to translate between Acre (acre) and Square Meter (m²). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

acre → m²

Acre

acre

Square Meter

4,046.8564

m²

Rounded result (4 decimals max)

Formula

1 acre = 4,046.8564 m²

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from m² to acre.

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acre to m² quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Acre (acre)	Square Meter (m²)
0.25 acre	1,011.7141 m²
0.5 acre	2,023.4282 m²
1 acre	4,046.8564 m²
2 acre	8,093.7128 m²
5 acre	20,234.2821 m²
10 acre	40,468.5642 m²
25 acre	101,171.4106 m²
100 acre	404,685.6422 m²