miles per hour to knots — mph to kn Converter

Conversion Formula

Multiply the miles per hour value by the conversion factor:
kn = mph × 0.869

How to Convert Step by Step

• Enter the number of miles per hour you want to convert (e.g. 10 mph).
• Multiply it by the factor 0.869.
• Round the result to 2–4 decimals for practical use — done, that is your value in knots.

Common miles per hour to kn Conversion Table

Real-World Examples

• mph is used for vehicle speeds and winds in the US and UK. Example: 10 mph ≈ 8.6898 kn.
• Knots are used for ship, aircraft, and typhoon speeds. Example: 20 kn ≈ 23.0156 mph.
• mph is used for vehicle speeds and winds in the US and UK. Another common case: 50 mph = 43.4488 kn.

About miles per hour & knots

• miles per hour: mph is used on US and UK roads: 1 mph = 1.609 km/h. US freeway limits are often 65–70 mph.
• knots: The knot is the nautical/aerial unit: 1 kn = 1 nautical mile/hour = 1.852 km/h. Typhoon winds are often quoted in knots.

FAQ

How many knots in 1 mph?

1 mph = 0.869 kn. Use the converter above to compute any value, or multiply mph by 0.869.

Is this miles per hour-to-knots converter accurate?

Yes — conversions use the standard international factors and are rounded to 4 decimals.

When is miles per hour to knots conversion used?

mph is used for vehicle speeds and winds in the US and UK. Knots are used for ship, aircraft, and typhoon speeds. Whenever a value is given in mph but you need kn, this converter is the quick fix.

Related Conversions

km/h→miles per hourmiles per hour→km/hkm/h→meters per secondmeters per second→km/hknots→km/hkm/h→knotsknots→miles per hourmeters per second→miles per hourmiles per hour→meters per secondmeters per second→knots