Open-Water Sighting Cost Calculator

Apply a user-chosen extra-distance percentage without inferring drift from conditions, GPS data, or sighting-related deceleration.

Planned Course

Assumed Extra Distance

Swim Pace

Scenario Distance

1995m

Extra Distance

95m

Added Time

1:45

Adjusted Swim Time

36:35

Scenario distance = planned distance × (1 + chosen extra percentage). Added time assumes unchanged pace and excludes separate sighting deceleration.

About Open-Water Sighting Cost Calculator

Apply a user-chosen extra-distance percentage to a planned open-water course, then calculate scenario distance and added time at an unchanged pace. The tool does not infer drift from conditions or GPS data and excludes separate sighting deceleration.