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AtoBviaC Ltd is a United Kingdom based company providing marine distances to all sectors of the maritime industry that are involved in the control of sea-going ships.

We provide a range of products and services to meet our customers' needs and are willing to discuss any topic relating to distances or ships' routes which will help customers or enhance our products.

Latest News 

 Distance Tables version released for users of our PortToPort (v4), Online Distance Tables and Web Service users.

The AtoBviaC Marine Distance Tables
The Marine Distance Tables
The AtoBviaC Marine Distance Tables have a long history of being the definitive distance provider to the shipping industry. They continue to be the standard for marine distance calculations. read more
Accurate Distances
Accurate Distances
All distances are based on a contemporary network of routes maintained on a weekly basis by AtoBviaC using Admiralty Notices to Mariners. The criteria for selecting all routes can be viewed on this website. read more
AtoBviaC offer a range of products which provide customers with distance and routeing information depending on their needs. Cost effective solutions are available Online and on Windows PCs. read more
About Us
About Us
AtoBviaC produce and maintain Marine Distance Tables, offering a unique mix of expertise comprising software developers, Master Mariners and specialists in distance calculations. read more