Nautical software measures distances between ports

Weilbach AtoBviaC

AtoBViaC gives you trusted, accurate voyage distance calculations, with more than 16 million pre-calculated voyage legs connecting over 7,000 ports worldwide. Every route is created and verified by Master Mariners, and kept current using ADMIRALTY Notices to Mariners, so you can plan and cost voyages with confidence.

Global coverage

More than 16 million pre-calculated voyage legs connecting over 7,000 ports worldwide.

A large container ship navigating across the ocean

Fits your workflow

Available online, offline, or as an API, so it works the way you already do.

ECA-zones

Emissions Compliance Zone distances are calculated and shown separately.

Trusted in the industry

Worldscale uses AtoBviaC as the benchmark for tanker rate calculations.

Built by experts

Every voyage leg is created and verified by Master Mariners.

Point-to-point

Get distances port-to-port or point-to-point, whichever you need.

Accurate distances

Every distances is based on a route network maintained weekly using ADMIRALTY Notices to Mariners, so what you see reflects real, current conditions. Knowing how long it takes to sail between ports helps you find the easiest and most efficient way to get there.

PortToPort Online

Access the AtoBviaC Marine Distance Tables over the internet, with full control.

Key features

Accurate distances
Create multi-leg voyages using over 3300 'distance table' ports
Full control over routing between ports
Distances travelled in ECA zones

Go to PortToPort Online

PortToPort Desktop

Install on a Windows PC for offline access to Marine Distance Tables, licensed per user.

Key features

Functionality of PortToPort Online
Offline access to the AtoBviaC Marine Distance Tables
Subscriptions are on individual licences and not number of calculations

Go to PortToPort Desktop

Distance Matrices

A bespoke, cost-effective service for distances between a small number of specific ports.

Key features

A bespoke service to build distance matrices
Cost effective
Accurate and realistic results

Go to Distance Matrices

Web Service

Integrate the Distance Tables directly into your own in-house software.

Key features

Integrate Distance Tables into your own in-house applications
Access distances, display maps and plot routes to your own requirements

Go to Web Service

Routing Component

A software component giving you offline offline access to distances and routes.

Key features

Create multi-leg voyages using over 3300 'distance table' ports
Control voyage routing using over 110 routing points
Obtain high-precision route waypoints

Go to Routing Component

Do you need help?

AtoBviaC has its own site with full product and purchasing details.

Go to AtoBviaC.com