All online calculators

  • Percentage

    This online calculator gives the percentage of the value. It also calculates the percentage of the sum (e.g. the income tax of the net salary) and the percentage of the difference (e.g. VAT of the gross amount).

  • Petroleum product density

    Petroleum product density conversion, according to GOST 3900-85

  • Pipe cold bending. Flexure depth with main shaft.

    Calculates the section flexure depth with pipe bender or bending machine to obtain given parameters.

  • Polygon area

    Online calculator which calculates area of a polygon given lengths of polygon sides and diagonals which split polygon to nonoverlapping triangles

Points of the compass

This online calculator outputs compass point given direction angle in degrees. Different compass roses (4, 8, 16, 32, 128-wind compass roses) are supported.


Compass Points


Power into Torque and vise versa

This online calculator turns power into torque and vise versa


Torque into Power

Digits after the decimal point: 3