# How do I convert feet to meters?

Converts feet (ft) to meters (m) and back, with the exact unit definitions.

- Page: https://www.acalculator.org/convert/feet-to-meters
- JSON spec: https://www.acalculator.org/convert/feet-to-meters.json
- Version: d72937a88e13

## Default answer

Example with the default inputs (Feet (ft) 1): 1 ft = 0.3048 m.

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| value | Feet (ft) | The amount in feet to convert. |
| result | Meters (m) | The same amount in meters. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| value | Feet (ft) | The amount in feet to convert. |
| result | Meters (m) | The amount in meters. |

## Method

m = ft × 0.3048

## Assumptions

- 1 foot = 0.3048 meters, 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 = 0.3048. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.
2. value = 10 gives result = 3.048. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.
3. result = 3.048 gives value = 10. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.

## FAQ

### How many meters are in a foot?

1 foot is 0.3048 meters, from the exact unit definitions (NIST SP 811).

### How do I convert feet to meters?

Multiply by 0.3048: m = ft × 0.3048. For example, 1 ft × 0.3048 = 0.3048 m.

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

Multiply by 3.28084, or type the meters into the second box and the converter works it out. 1 meter is 3.28084 feet.

### What is 6 feet in meters?

1.8288 m: 6 × 0.3048.

### Why is a foot exactly 0.3048 m?

That is the international foot. NIST made the older US survey foot, about 0.3048006 m, obsolete from January 1, 2023, except for historic records.

## 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
- NIST, U.S. Survey Foot: from January 1, 2023 the U.S. survey foot is obsolete, superseded by the international foot, 1 foot = 0.3048 meter exactly, retrieved 2026-10-18. https://www.nist.gov/pml/us-surveyfoot