ETA Calculator

Plan voyages with confidence. Calculate ETA or required speed in seconds, save results, and work fully offline — built for masters, officers and seafarers.

Calculate ETA and required speed quickly with a practical maritime voyage planning tool built for seafarers.

ETA Calculator helps masters, deck officers, bridge watchkeepers, cadets, and other maritime professionals manage voyage timing with fast and straightforward calculations. Whether you need to estimate when your vessel will arrive or determine the speed required to meet a planned arrival time, the app gives you the result in seconds.

TWO ESSENTIAL MARITIME CALCULATIONS

• Estimated Time of Arrival (ETA) Enter the remaining distance and vessel speed to calculate the expected arrival time.

• Required Speed Enter the remaining distance and your desired arrival time to calculate the speed required to reach the destination on schedule.

SAVE YOUR CALCULATIONS

Save calculation results for later reference, making it easier to keep important voyage timing information available when you need it.

BUILT FOR USE AT SEA

• Works completely offline • Fast and simple data entry • Clear, easy-to-read calculation results • Save calculation results • 24-hour time format • Light and dark themes • Designed for quick use on the bridge • Suitable for vessels of any type and size

USEFUL FOR

• Voyage and passage planning • ETA monitoring during a voyage • Speed planning • Bridge watch operations • Time-critical maritime operations • Maritime training and simulation exercises

ETA Calculator is focused on what maritime professionals need most: fast calculations, clear results, reliable offline access, and a simple workflow without unnecessary complexity.

Plan your voyage. Check your ETA. Calculate the required speed. Save the result and keep your voyage timing under control.

ETA Calculator is intended as a calculation and planning aid. Navigational decisions should always follow applicable procedures, official voyage planning requirements, and professional judgment.