Whale Migration Calculator

Estimate cetacean migration distance, travel time, and energy expenditure based on breeding/feeding ground coordinates, swim speed, and body mass.

Breeding ground latitude (°)

Breeding ground longitude (°)

Feeding ground latitude (°)

Feeding ground longitude (°)

Swim speed (km/h)

Body mass (kg)

Hours swimming/day

Tab to move between fields

One-way distance (km)

4,579

Round-trip distance (km)9,158

Travel time one-way (days)50.9

Round-trip travel (days)101.8

Total energy cost (MJ)169,841

Fat reserves needed (kg)4,510

Fat as % body mass15

Latitude Change Deg35

How to Use This Calculator

Enter the migration route distance in kilometers from feeding to breeding grounds.
Input the average swimming speed in km/day for the species.
Set the estimated energy expenditure per km in megajoules.
Review the total migration duration in days and energy budget for the round trip.
Compare caloric demand to the energy available from blubber reserves to assess migration feasibility.

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