Knots to Miles Per Hour Converter
Convert knots to miles per hour instantly with this free knots to miles per hour converter. Enter any value to get an accurate speed conversion, plus the formula, the conversion factor and a full reference table.
What is 1 knot in miles per hour?
1 knot is equal to 1.15077945 miles per hour.
1 × 1.15077945 = 1.15077945 miles per hour
1 knot = 1.150779448 miles per hour
Knots to Miles per hour formula
mph = kn × 1.15077945
The knots to miles per hour conversion factor is 1.15077944802, which is exact by definition. 1 knot = 1.15077944802 miles per hour, and 1 mile per hour = 0.868976241901 knots.
Worked examples
- 2 knots = 2.3015589 miles per hour — 2 × 1.15077945 = 2.3015589 miles per hour
- 6 knots = 6.90467669 miles per hour — 6 × 1.15077945 = 6.90467669 miles per hour
- 10 knots = 11.5077945 miles per hour — 10 × 1.15077945 = 11.5077945 miles per hour
Knots to Miles per hour conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 1 kn | 1.1507794 mph |
| 2 kn | 2.3015589 mph |
| 3 kn | 3.4523383 mph |
| 4 kn | 4.6031178 mph |
| 5 kn | 5.7538972 mph |
| 6 kn | 6.9046767 mph |
| 7 kn | 8.0554561 mph |
| 8 kn | 9.2062356 mph |
| 9 kn | 10.357015 mph |
| 10 kn | 11.507794 mph |
| 12 kn | 13.809353 mph |
| 15 kn | 17.261692 mph |
| 20 kn | 23.015589 mph |
| 25 kn | 28.769486 mph |
| 30 kn | 34.523383 mph |
| 50 kn | 57.538972 mph |
| 75 kn | 86.308459 mph |
| 100 kn | 115.07794 mph |
| 500 kn | 575.38972 mph |
| 1,000 kn | 1,150.7794 mph |
When you need to convert knots to miles per hour
- Reading road signs and speed limits abroad.
- Comparing running or cycling pace with training plans from another country.
- Interpreting wind speeds in forecasts and aviation or marine reports.
Common mistakes to avoid
- Dividing when you should multiply. Because 1 knot = 1.15078 miles per hour, the answer should be larger than the number you started with.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Round only at the end, and only to the precision your task actually needs. The converter above keeps full double precision internally and rounds for display.
How these units are defined
- Knot (kn): One nautical mile per hour, used at sea and in aviation. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- Mile per hour (mph): The road-speed unit in the US and UK. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Related conversions
Frequently asked questions
- What is 1 knot in miles per hour?
- 1 knot is equal to 1.15077945 miles per hour.
- How many knots are in one mile per hour?
- There are 0.868976242 knots in 1 mile per hour.
- How do you convert knots to miles per hour?
- Multiply the number of knots by 1.15077945 — or use the formula mph = kn × 1.15077945.
- What is 6 knots in miles per hour?
- 6 knots is 6.90467669 miles per hour. 6 × 1.15077945 = 6.90467669 miles per hour.
- Is the knots to miles per hour conversion exact?
- Yes. The relationship is fixed by definition, so 1.15077944802 is an exact conversion factor — only the displayed result is rounded.