How to use it
- Enter high and low levels in meters using the same datum.
- Confirm high is not below low.
- Calculate the range.
Tide Range Calculator
Subtract a low tide level from a high tide level using the same reference datum.
Important: This calculator is an educational estimate only. It is not marine navigation, voyage planning, vessel, diving, rescue, flood, storm, coastal, offshore, pressure-vessel, engineering, legal, or safety advice.
About the Tide Range Calculator
Find the vertical difference between two stated tide levels.
Formula
Tide range equals high tide level minus low tide level.
Example
A high level of 3.2 m and low level of 0.8 m gives a 2.4 m range.
Notes
Entered levels are not forecasts and must not be used for navigation, flood, storm or access decisions.