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Pressure units converter Calculator which converts units of pressure |

Altitude difference by barometric formula This calculator calculates the height or altitude difference between two points using barometric formula or barometric leveling method. |

Boiling point of pure water at elevated altitudes This online calculator finds the water boiling temperature given the atmospheric pressure in millimeters of mercury. |

Altitude Pressure This calculator uses barometric formula to find out the pressure at the given altitude |

The buoyant force This calculator computes the buoyant force and weight of the liquid displaced, given the volume of a body in water |

Pressure over a surface This online calculator computes pressure, cause by given mass over given surface in gravity field. Result is displayed using different units of pressure |

Saturation vapor pressure This online calculator computes saturation vapor pressure for a given temperature and atmospheric (barometric) pressure |

Relative humidity to absolute humidity and vice versa calculators The first calculator converts relative humidity to absolute humidity for a given temperature and barometric pressure. The second calculator does the opposite - converts absolute humidity to relative humidity for a given temperature and barometric pressure. Some theory and formulas can be found below the calculator. |

Density of oil Recalculation of the density of oil for different temperature and pressure values. Formulas are taken from Russia's GOST R 8.610-2004. "State system for ensuring the uniformity of measurements for the density of oil. The tables for recalculation" standard |

Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure. Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure. |

Volume of body given the buoyant force This calculator computes the volume of body given the buoyant force and density of the body, assuming that the buoyant force equals gravity force. |

Hydrostatic pressure This online calculator can solve hydrostatic pressure problems by finding unknown values in the hydrostatic equation. |

Barlow formula Barlow´s Formula is used to calculate the pipe pressure considering its diameter, wall thickness, and hoop stress (in the pipe material). |