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Alcohol amount in the aqueous alcohol solution
Defines the mass and volume fraction of ethanol in the solution of two liquids with different levels of alcohol.
Calculation of the volume by weight
Calculation of the volume and parameters of regular geometric figure by given mass using density of matter reference book.
Calculation of weight by volume
Calculating the weight by the volume of material with matter density reference book
Calculation of weight by volume
Calculating the weight by the volume of material with matter density reference book
Density of oil
Recalculation of 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. Density of oil. The tables for recalculation" standard

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

Body density (kg/m3)

Buoyant force (N)

Gravity g

Calculation precision

Digits after the decimal point: 6

Hydrostatic pressure
This online calculator can solve hydrostatic pressure problems by finding unknown value in hydrostatic equation.
Petroleum product density
Petroleum product density conversion, according to GOST 3900-85
Surface tension. Weight and volume of the drop of liquid
This online calculator calculates the weight and the volume of the drop given the surface tension, diameter of the capillary tube, and density of the liquid
Wind energy and wind power
This online calculator computes kinetic energy of wind and wind power