Knot to mph Converter
Convert knots to miles per hour and back. 1 knot = 1.15078 mph — used in US aviation weather reports and nautical charts.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
mph
11.5078 mph
= 18.5200 km/h
This tool provides general unit conversions for everyday and educational use. For regulated, legal, or scientific applications, verify conversion factors against the applicable official standard.
About the Knot to mph Converter
The knot to mph converter changes speeds between knots and miles per hour using 1 knot ≈ 1.15078 mph. Knots are standard at sea and in the air, while miles per hour are familiar from road speeds in the US and UK.
How to use it
- 1Choose knots → mph or mph → knots.
- 2Enter the speed.
- 3Read the converted value.
- 4Copy, share or print the result with the buttons below it.
Worked example
25 knots × 1.15078 ≈ 28.8 mph.
How it works
Formula
mph = knots × 1.15077945
1 knot = 1 nautical mile/hr = 1.852 km/h = 1.15078 mph.
Common use cases
- Understanding wind speeds for sailing
- Comparing boat and aircraft speeds
- Reading weather reports
Frequently asked questions
A:100 knots = 115.08 mph = 185.2 km/h.
A:Cruising speed is typically 450–500 knots (518–575 mph, 835–925 km/h).
Reviewed for accuracy · Last updated October 7, 2026
Conversion factors are based on internationally defined SI units and standard metric/imperial equivalence tables.
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
Expertise: Financial mathematics, Health and fitness formulas, Applied mathematics, Unit conversion standards
References & sources
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