4 free oceanography calculators and tools. Solve real-world oceanography problems instantly with accurate, step-by-step results on ApexCalc.
| Constant | Symbol | Value |
|---|---|---|
| Speed of light | c | 2.99792458×10⁸ |
| Planck's constant | h | 6.62607015×10⁻³‴ |
| Boltzmann constant | kʙ | 1.380649×10⁻²³ |
| Avogadro's number | Nₐ | 6.02214076×10²³ |
| Gravitational constant | G | 6.6743×10⁻¹¹ |
| Gas constant | R | 8.31446 |
| Elementary charge | e | 1.602176634×10⁻¹⁹ |
| Electron mass | mₑ | 9.1093837015×10⁻³¹ |
| Proton mass | mₚ | 1.67262192369×10⁻²⁷ |
| Fine-structure constant | α | 7.2973525693×10⁻³ |
Calculate significant wave height from wind speed using JONSWAP spectrum and Beaufort scale. Includes wave period and wavelength.
Calculate tidal range, high/low water times, and tidal current speed using the rule of twelfths and harmonic constituents.
Calculate seawater density from temperature, salinity, and pressure using the UNESCO 1983 equation of state (EOS-80).
Calculate Degree Heating Weeks (DHW) and Bleaching Alert Level from sea surface temperature anomalies following NOAA CoralWatch methodology.