Speed Distance Time Calculator
Calculate speed, distance, or time for maritime navigation. Essential for passage planning, ETA calculations, and fuel consumption estimates.
Leave blank to calculate from distance and time.
Leave blank to calculate from speed and time.
Hours
Minutes
Seconds
Enter any two of speed, distance, and time — the third is calculated.
How to Use
Enter any 2 values and the third will be calculated automatically. Time normalizes automatically (e.g., 75 seconds becomes 1 minute 15 seconds).