ETA Calculator

Offline ETA & Speed Calculator for seafarers. Plan voyages, check arrival times, and calculate required speed easily at sea.

ETA Calculator is a simple offline navigation tool for seafarers. It helps maritime professionals with voyage planning, passage scheduling, and time management at sea.

Main Functions

1. Estimated Time of Arrival (ETA): Enter distance and vessel speed to calculate expected arrival time.

2. Required Speed: Enter distance and desired arrival time to calculate the necessary speed.

3. History of Calculations: All previous ETA and speed results are automatically saved for quick reference.

Useful For:

• Bridge watch officers
• Masters and chief officers
• Students and cadets in maritime training
• Anyone involved in time-critical passage planning

Features:

• Works fully offline, no internet required
• Fast, accurate results with a clear interface
• Light & dark themes for day and night use
• 24-hour time format, matching maritime standards

ETA Calculator is designed for all vessel types and sizes — from training simulators to real-world navigation. Reliable, accurate, and easy to use.