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Knots to Meters per second (kn to m/s)
Convert knots to meters per second: 1 kn = 0.514444 m/s. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 kn = 0.514444 m/s
meters per second = knots × 0.5144444444 — reverse: knots = meters per second × 1.943844492
The factor is derived from the SI definitions of both units (base unit: m/s) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 kn = 2.57222 m/s
- 12.5 kn = 6.43056 m/s
- 100 kn = 51.4444 m/s
Knots to meters per second conversion table
| Knots (kn) | Meters per second (m/s) |
|---|---|
| 1 | 0.514444 |
| 2 | 1.02889 |
| 3 | 1.54333 |
| 4 | 2.05778 |
| 5 | 2.57222 |
| 6 | 3.08667 |
| 7 | 3.60111 |
| 8 | 4.11556 |
| 9 | 4.63 |
| 10 | 5.14444 |
| 15 | 7.71667 |
| 20 | 10.2889 |
| 25 | 12.8611 |
| 30 | 15.4333 |
| 40 | 20.5778 |
| 50 | 25.7222 |
| 75 | 38.5833 |
| 100 | 51.4444 |
| 200 | 102.889 |
| 250 | 128.611 |
| 500 | 257.222 |
| 1000 | 514.444 |
FAQ
How many meters per second are in one knot?
1 kn = 0.514444 m/s. 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 knots to meters per second?
Multiply the value in knots by 0.5144444444: meters per second = knots × 0.5144444444. For example, 5 kn = 2.57222 m/s.
How do I convert meters per second back to knots?
Multiply by the inverse factor 1.943844492 (knots = meters per second × 1.943844492), or use the meters per second-to-knots page.
Related conversions
- Meters per second to knots (reverse)
- Speed Converter — all speed units in one tool
- Kilometers per hour to Miles per hour
- Miles per hour to Kilometers per hour
- Meters per second to Kilometers per hour
- Kilometers per hour to Meters per second
- Meters per second to Miles per hour
- Miles per hour to Meters per second
- Knots to Kilometers per hour
- Kilometers per hour to Knots
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=kn&to_unit=m%2Fs - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"kn","to_unit":"m/s"} - Markdown: https://tttkmbb.com/conversion/knots-to-meters-per-second.md · JSON: https://tttkmbb.com/conversion/knots-to-meters-per-second.json (add
?value=for a result) · Units: /api/v1/units?quantity=speed - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.