Tide Range Calculator
Enter high and low tide heights to calculate tidal range and classify the tide type.
Tide Heights
m
m
Result
Enter tide heights and click Calculate
Tidal Range
Classification
High tide
Low tide
Range in feet
Range in meters
Tidal Classification Reference
| Class | Range (m) | Range (ft) | Examples |
|---|---|---|---|
| Microtidal | < 2 m | < 6.6 ft | Mediterranean Sea, Gulf of Mexico |
| Mesotidal | 2 – 4 m | 6.6 – 13.1 ft | North Sea, parts of the US East Coast |
| Macrotidal | > 4 m | > 13.1 ft | Bay of Fundy (16.3 m), Bristol Channel (14 m) |
Summary
Enter high and low tide heights to calculate tidal range and classify the tide type.
How it works
- Enter the high tide height in the first field.
- Enter the low tide height in the second field.
- Select the unit (meters or feet).
- Click Calculate to see the tidal range.
- Read the classification: microtidal, mesotidal, or macrotidal.
- Use the chart to compare your result against typical global ranges.
Use cases
- Coastal engineers assessing tidal energy potential at a site.
- Sailors and mariners planning passage timing around tidal windows.
- Geographers classifying coastal environments for research.
- Students learning about oceanographic tidal zones.
- Fishers identifying optimal fishing periods tied to tidal cycles.
- Ecologists studying intertidal habitat extent.
Frequently Asked Questions
Last updated: 2026-06-15 ·
Reviewed by Nham Vu