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Acres to Square Meters Converter

Convert acres to square meters and back — exactly 4,046.8564224 m² per acre. Free, instant, no sign-up, full working shown.

Convert acres ⇄ square meters

4046.8564 m²
1 ac = 4046.8564 m² (1 ac = 4,046.8564224 m² (exact))

Formula: 1 ac × 4046.8564224 = 4046.8564 m²

How the acres to square meters converter conversion works

The converter applies m² = acres × 4,046.8564224. The acre is 43,560 sq ft and each square foot is exactly 0.09290304 m², so the acre is 43,560 × 0.09290304 = 4,046.8564224 m². Going the other way, acres = m² ÷ 4,046.8564224.

Worked example: a 3-acre smallholding is 3 × 4,046.8564224 = 12,140.57 m², and a 10-acre field is 40,468.56 m².

For the same land in hectares or square feet, use our acres to hectares converter or acres to square feet converter.

acres to square meters converter questions

How many square meters are in an acre?
Exactly 4,046.8564224 m². An acre is 43,560 sq ft and a square foot is 0.09290304 m², so 43,560 × 0.09290304 = 4,046.8564224 m².
How do I convert acres to square meters?
Multiply by 4,046.8564224: m² = acres × 4,046.8564224. So 5 acres is 5 × 4,046.8564224 = 20,234.282112 m².
How do I convert square meters back to acres?
Divide by 4,046.8564224: acres = m² ÷ 4,046.8564224. So 10,000 m² is 2.47105 acres.
Is an acre bigger than a hectare?
No — a hectare (10,000 m²) is about 2.47 acres, while one acre is only about 0.4047 ha.
How many acres is an American football field?
About 1.32 acres including the end zones (57,600 sq ft) — a handy mental picture for an acre.

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Sources & official guidance

Estimate only — the acre is 4,046.8564224 m² by definition; conversions are exact. See our disclaimer.