Knots to MPH Conversion - Fast and Quick Knots ⇄ MPH Tool

Convert between knots (kn) and miles per hour (mph) with precision using standard speed measurements

Knots to Miles per Hour Converter Tool
Enter a value to convert between knots and mph with bidirectional conversion (1 knot = 1.15078 mph)
Note: This converter uses standard conversion (1 knot = 1.15078 mph). Perfect for maritime navigation, aviation speed measurements, weather forecasting, and nautical speed calculations.

Need a reliable way to calculate knots to mph conversion? Our knots ⇄ mph converter gives you instant and accurate results. Enter the value in knots or miles per hour and get precise answers in seconds.

Why Users Love This Knots ⇄ MPH Conversion Tool

  • Exact in design: Uses the standard formula for accurate conversion.
  • Instant answers: Results appear as you type.
  • Clear display: Shows both exact and rounded values.
  • Two-way switch: knots to mph or mph to knots.
  • Works anywhere: Mobile and desktop friendly for everyday use.

How to Use Our Converter

  1. Enter the value.
  2. Select the direction: knots to mph or mph to knots.
  3. View instant results.
  4. Copy, share, or save the conversion.

Knots (kts)

A knot is a unit of speed equal to one nautical mile per hour. It is commonly used in maritime navigation, aviation, and weather reports.

Key Facts About Knots:

  • Exact value: 1 knot = 1.15078 miles per hour.
  • Relationship to other units: 1 knot = 1 nautical mile per hour = 1.852 km/h.
  • Common abbreviation: kt or kts.
  • Usage: Aircraft, ships, and wind speed in meteorology.

Miles per Hour (mph)

Miles per hour is a unit of speed used mainly in the United States and the United Kingdom. It measures how many miles are traveled in one hour.

Key Facts About MPH:

  • Exact value: 1 mph = 1.609 km/h.
  • Relationship to other units: 1 mph = 0.868976 knots.
  • Common abbreviation: mph.
  • Usage: Vehicle speed, road signs, and weather systems

Knots to MPH Conversion Formula

Formula:

mph = knots × 1.15078

Knots to MPH Conversion Example:

Example 1: Convert 10 knots to mph

Step 1: Formula = mph = knots × 1.15078

Step 2: Substitute = 10 × 1.15078

Step 3: Result = 11.51 mph

Example 2: Convert 20 knots to mph

Step 1: mph = knots × 1.15078

Step 2: Substitute = 20 × 1.15078

Step 3: Result = 23.02 mph

Example 3: Convert 50 knots to mph

Step 1: mph = knots × 1.15078

Step 2: Substitute = 50 × 1.15078

Step 3: Result = 57.54 mph

MPH to Knots Conversion Formula

Formula:

knots = mph × 0.868976

MPH to Knots Conversion Example:

Example 1: Convert 10 mph to knots

Step 1: Formula = knots = mph × 0.868976

Step 2: Substitute = 10 × 0.868976

Step 3: Result = 8.69 knots
 

Example 2: Convert 50 mph to knots

Step 1: knots = mph × 0.868976

Step 2: Substitute = 50 × 0.868976

Step 3: Result = 43.45 knots

Example 3: Convert 140 mph to knots

Step 1: knots = mph × 0.868976

Step 2: Substitute = 140 × 0.868976

Step 3: Result = 12.165664 knots

Applications of Knots and MPH Conversions

  • Maritime navigation: Ships report speeds in knots, but conversions to mph help compare with road travel.
  • Aviation: Pilots measure airspeed in knots, but mph is often used in ground reports.
  • Weather forecasting: Wind speeds are often given in knots for aviation and shipping, but mph is used in daily news.
  • Sports: Sailing races and water sports use knots, while land sports rely on mph.
  • Engineering: Conversions are needed for designing vehicles, ships, and flight systems.

Quick Reference Table for Knots ⇄ MPH

Knots (kts)

Miles per Hour (mph)

Miles per Hour (mph)

Knots (kts)

1 knot

1.15 mph

10 mph

8.69 kts

5 knots

5.75 mph

20 mph

17.38 kts

10 knots

11.51 mph

50 mph

43.45 kts

20 knots

23.02 mph

80 mph

69.52 kts

30 knots

34.53 mph

100 mph

86.9 kts

50 knots

57.54 mph

200 mph

173.8 kts

Use our knots ⇄ mph converter at Digital Calculator for quick, reliable, and accurate speed conversions in aviation, marine travel, weather studies, and more.

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Frequently Asked Questions

Published: 9/19/2025