How to convert square metres to acres
One square metre equals 0.000247 acres, so multiply the number of square metres by 0.000247:
ac = m² × 0.000247
m² = ac ÷ 0.000247 (1 ac = 4,046.86 m²)
Example: 1,000 m² → 1,000 × 0.000247 = 0.247105 ac.
Going the other way, divide by 0.000247, or multiply by 4,046.86; the acres to square metres converter does it for you.
Everyday values
| Square metres | Acres | For example |
|---|---|---|
| 1,000 m² | 0.247105 ac | 1,000 m² |
| 4,047 m² | 1 ac | one acre |
| 10,000 m² | 2.4711 ac | one hectare |
When you need this conversion
Divide square metres by 4,046.86 to get acres. Land plots in metric countries are often listed in m² for smaller lots and hectares for larger ones.
Square metre to acre conversion table
| m² | ac | m² | ac |
|---|---|---|---|
| 500 m² | 0.123553 ac | 5,500 m² | 1.3591 ac |
| 1,000 m² | 0.247105 ac | 6,000 m² | 1.4826 ac |
| 1,500 m² | 0.370658 ac | 6,500 m² | 1.6062 ac |
| 2,000 m² | 0.494211 ac | 7,000 m² | 1.7297 ac |
| 2,500 m² | 0.617763 ac | 7,500 m² | 1.8533 ac |
| 3,000 m² | 0.741316 ac | 8,000 m² | 1.9768 ac |
| 3,500 m² | 0.864869 ac | 8,500 m² | 2.1004 ac |
| 4,000 m² | 0.988422 ac | 9,000 m² | 2.224 ac |
| 4,500 m² | 1.112 ac | 9,500 m² | 2.3475 ac |
| 5,000 m² | 1.2355 ac | 10,000 m² | 2.4711 ac |
About the units
- Square metre (m²): the area of a square 1 metre on each side.
- Acre (ac): 43,560 square feet, about 4,046.86 m².
Both are units of area. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many acres are in one square metre?
One square metre is 0.000247 acres. One acre is 4,046.86 square metres.
How do I convert square metres to acres?
Multiply the value in square metres by 0.000247. To go back, divide by 0.000247.
What is 1,000 m² in acres?
1,000 m² = 0.247105 ac.
What is 4,047 m² in acres?
4,047 m² = 1 ac.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.