# Convert square meters to square feet

Converts square meters (m²) to square feet (ft²) and back, with the exact unit definitions.

- Page: https://www.acalculator.org/convert/square-meters-to-square-feet
- JSON spec: https://www.acalculator.org/convert/square-meters-to-square-feet.json
- Version: b3c3706f1f2c

## Default answer

Example with the default inputs (Square meters (m²) 1): 1 m² = 10.76391 ft².

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| value | Square meters (m²) | The amount in square meters to convert. |
| result | Square feet (ft²) | The same amount in square feet. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| value | Square meters (m²) | The amount in square meters to convert. |
| result | Square feet (ft²) | The amount in square feet. |

## Method

ft² = m² × 10.7639104167 (the same as m² ÷ 0.09290304)

## Assumptions

- 1 square meter = 10.7639104167 square feet, from the exact definitions in NIST SP 811.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.

## Worked examples

1. value = 1 gives result = 10.76391. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.
2. value = 100 gives result = 1,076.391042. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.
3. result = 1,076.391042 gives value = 100. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.

## FAQ

### How many square feet are in a square meter?

1 square meter is 10.76391 square feet, from the exact unit definitions (NIST SP 811).

### How do I convert square meters to square feet?

Multiply by 10.76391: ft² = m² × 10.7639104167 (the same as m² ÷ 0.09290304). For example, 1 m² × 10.76391 = 10.76391 ft².

### How do I convert square feet back to square meters?

Multiply by 0.092903, or type the square feet into the second box and the converter works it out. 1 square foot is 0.092903 square meters.

### What is 100 square meters in square feet?

1,076.391042 ft²: 100 ÷ 0.09290304.

### How do I find the square meters of a room?

Multiply the length by the width, both in meters: a 4 m × 3 m room is 12 m², which is 129.166925 ft².

## Sources

- NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B.8: Factors for Units Listed Alphabetically (bold factors are exact), retrieved 2026-10-18. https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8