- Beaufort scale
Conversion between wind speed measurement units including Beaufort numbers, km/h, m/s, mph, fps.

- Meters per second and kilometers per hour
This simple calculator convert meters per second to kilometers per hour and vice versa

Nautical mile, sea mile, cable

- Miles per gallon to liters per kilometer fuel consumption converter
Converts miles per gallon to liters per kilometer fuel consumption

- Ton-kilometer. Conversion based on the cost of a kilometer
Calculation of a cost of ton-kilometer