# Meters per second to Knots (m/s to kn)

> Convert meters per second to knots: 1 m/s = 1.94384 kn. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

- Page id: `meters-per-second-to-knots` · Quantity: Speed (`speed`, base unit m/s) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/meters-per-second-to-knots · This document: https://tttkmbb.com/conversion/meters-per-second-to-knots.md · JSON: https://tttkmbb.com/conversion/meters-per-second-to-knots.json (add `?value=` for a result)

## Formula

- `1 m/s = 1.94384 kn`
- `knots = meters per second × 1.943844492`
- Reverse: `meters per second = knots × 0.5144444444`

The factor follows from the SI definitions of both units (NIST SP 811); values below are rounded to 6 significant figures, the API returns up to 12.

## Worked examples

- 5 m/s = 9.71922 kn
- 12.5 m/s = 24.2981 kn
- 100 m/s = 194.384 kn

## Conversion table

| Meters per second (m/s) | Knots (kn) |
| --- | --- |
| 1 | 1.94384 |
| 2 | 3.88769 |
| 3 | 5.83153 |
| 4 | 7.77538 |
| 5 | 9.71922 |
| 6 | 11.6631 |
| 7 | 13.6069 |
| 8 | 15.5508 |
| 9 | 17.4946 |
| 10 | 19.4384 |
| 15 | 29.1577 |
| 20 | 38.8769 |
| 25 | 48.5961 |
| 30 | 58.3153 |
| 40 | 77.7538 |
| 50 | 97.1922 |
| 75 | 145.788 |
| 100 | 194.384 |
| 200 | 388.769 |
| 250 | 485.961 |
| 500 | 971.922 |
| 1000 | 1943.84 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=m%2Fs&to_unit=kn` → unified JSON envelope with `result.values.result`, `formula`, `factor`, `sources`, `freshness`
- MCP: server `https://tttkmbb.com/mcp`, tool `convert_units` with `{"value":5,"from_unit":"m/s","to_unit":"kn"}`
- All speed units: https://tttkmbb.com/api/v1/units?quantity=speed · full converter: [Speed Converter](https://tttkmbb.com/conversion/speed.md)
- Authentication: none. Freshness: `static` (fixed conversion factors).

## FAQ

**How many knots are in one meter per second?**

1 m/s = 1.94384 kn. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

**What is the formula to convert meters per second to knots?**

Multiply the value in meters per second by 1.943844492: knots = meters per second × 1.943844492. For example, 5 m/s = 9.71922 kn.

**How do I convert knots back to meters per second?**

Multiply by the inverse factor 0.5144444444 (meters per second = knots × 0.5144444444), or use the knots-to-meters per second page.

## Related conversions

- [Knots to meters per second](https://tttkmbb.com/conversion/knots-to-meters-per-second.md) (reverse)
- [Kilometers per hour to Miles per hour](https://tttkmbb.com/conversion/kmh-to-mph.md)
- [Miles per hour to Kilometers per hour](https://tttkmbb.com/conversion/mph-to-kmh.md)
- [Meters per second to Kilometers per hour](https://tttkmbb.com/conversion/meters-per-second-to-kmh.md)
- [Kilometers per hour to Meters per second](https://tttkmbb.com/conversion/kmh-to-meters-per-second.md)
- [Meters per second to Miles per hour](https://tttkmbb.com/conversion/meters-per-second-to-mph.md)
- [Miles per hour to Meters per second](https://tttkmbb.com/conversion/mph-to-meters-per-second.md)
- [Knots to Kilometers per hour](https://tttkmbb.com/conversion/knots-to-kmh.md)
- [Kilometers per hour to Knots](https://tttkmbb.com/conversion/kmh-to-knots.md)

## Data Sources

- NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors — https://www.nist.gov/pml/special-publication-811 (standard, retrieved 2026-09-24)
- BIPM – The International System of Units (SI Brochure, 9th edition) — https://www.bipm.org/en/publications/si-brochure (standard, retrieved 2026-09-24)
- Wikipedia – Conversion of units — https://en.wikipedia.org/wiki/Conversion_of_units (reference, retrieved 2026-09-24)