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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. |

Altitude Boiling Point Calculator This online calculator calculates the boiling temperature of water based on the atmospheric pressure in millimeters of mercury or the altitude above the sea level. |

Altitude Pressure Calculator Calculate the pressure at a given altitude using the barometric formula. Adjust the sea level pressure, temperature, and altitude to obtain the altitude pressure value. |

Buoyant Force Calculator - Weight of Displaced Liquid This online tool allows you to calculate the buoyant force and weight of the liquid displaced by a submerged object in water. |

Gravity Pressure Calculator This online calculator computes pressure caused by a given mass over a given surface in a gravity field. |

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). |

Change in volume of liquid under pressure (compressibility) This online calculator calculates the change in volume of a liquid as a function of pressure using the compressibility coefficient |