1. What is Ship Speed in Knots?

Definition: This calculator determines a ship's speed in knots based on the distance traveled and time taken.

Purpose: It helps mariners, navigators, and shipping professionals calculate vessel speed for navigation, fuel estimation, and voyage planning.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( S \) — Speed (knots)
• \( D \) — Distance traveled (nautical miles)
• \( T \) — Time taken (hours)

Explanation: The distance in nautical miles is divided by the time in hours to get speed in knots (nautical miles per hour).

3. Importance of Ship Speed Calculation

Details: Accurate speed calculation is crucial for navigation safety, fuel efficiency, arrival time estimation, and compliance with shipping schedules.

4. Using the Calculator

Tips: Enter the distance in nautical miles and time in hours. Both values must be > 0. The result will be in knots.

5. Frequently Asked Questions (FAQ)

Q1: What exactly is a knot?
A: One knot equals one nautical mile per hour (1.852 km/h or 1.151 mph).

Q2: Why use nautical miles instead of statute miles?
A: Nautical miles are based on Earth's circumference and are standard in marine navigation.

Q3: Can I use this for air speed too?
A: Yes, aircraft speeds are also commonly measured in knots.

Q4: What if I have time in minutes?
A: Convert minutes to hours by dividing by 60 (e.g., 30 minutes = 0.5 hours).

Q5: How accurate is this calculation?
A: It provides theoretical speed. Actual speed may vary due to currents, winds, and other factors.