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Acres to Square Meters (ac to m²) Converter

1 acre (ac) = 4,046.86 square meters (m²). To convert acres to square meters, multiply by 4,046.86: 5 ac × 4,046.86 = 20,234.3 m². Also searched as acres to square metres.

1 ac = 4046.8564224 m²
Convert the other way: Square Meters to Acres

Quick facts

How to convert acres to square meters

  1. Take the value in acres.
  2. Multiply it by 4,046.86 (the number of square meters in one acre).
  3. Round the result to the precision you need.
m² = ac × 4,046.86

Worked example (a small farm): 5 ac × 4,046.86 = 20234.3 m².

To convert square meters back to acres, multiply by 0.000247105, or divide by 4,046.86.

Source: NIST SP 811 (2008). Marla and kanal use the Punjab standard stated in their definitions; local sizes can differ.

Acres to Square Meters conversion table

Acres to Square Meters conversion table
Acres [ac]Square Meters [m²]
0.001 ac4.0468564224 m²
0.01 ac40.468564224 m²
0.1 ac404.68564224 m²
0.5 ac2023.4282112 m²
1 ac4046.8564224 m²
2 ac8093.7128448 m²
5 ac20234.282112 m²
10 ac40468.564224 m²

ac to m² chart from 1 to 100

Square Meters to Acres conversion table

Square Meters to Acres conversion table
Square Meters [m²]Acres [ac]
1 m²0.0002471054 ac
10 m²0.0024710538 ac
100 m²0.0247105381 ac
1000 m²0.2471053815 ac
10000 m²2.4710538147 ac
100000 m²24.7105381467 ac
1000000 m²247.1053814672 ac

Acres vs Square Meters

AcreSquare Meter
Symbolacm²
Equals1 ac = 4,046.86 m²1 m² = 0.000247105 ac

What is an acre?

A US customary and imperial unit historically based on the area a yoke of oxen could plow in a day. Used in the US and UK for land and real estate.

What is a square meter?

The SI derived unit of area, equal to the area of a 1-meter square. The standard unit for floor space and land worldwide outside the US.

Frequently asked questions

How many square meters are in an acre?

There are 4,046.86 square meters in 1 acre (1 ac = 4046.8564224 m²).

How many acres are in a square meter?

There are 0.000247105 acres in 1 square meter (1 m² = 0.0002471054 ac).

How do I convert acres to square meters?

Multiply the number of acres by 4,046.86. For example, 10 ac × 4,046.86 = 40,468.6 m². To convert back, multiply by 0.000247105.

What is 10 ac in square meters?

10 ac = 40,468.6 m².

What is 100 ac in square meters?

100 ac = 404,686 m².

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008). Marla and kanal use the Punjab standard stated in their definitions; local sizes can differ). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026