To convert

Multiply by

area of circle

area of sector of circle are

area of square rhombus

area of trapezium

area of ellipse

area of parabols containing rectangle

convex surface of sphere

content of cone height

surface of one

Solidity of sphere

volume of base by height content of cube or prism

(diameter) by 0.7854

by ¼ diameter

base by height area of equilateral triangle (side) by 0.433
height by ½ sum of parallel sides

major axis by minor axis x 0.7854

by 0 circumference of circle diameter by 3.1416

(diameter) by 3.1416

by / area of base

½ side by perimeter of base + arca of base

 (diameter) by 0.5236

length by breadth by depth volume of hexagonal prism (side) by height by 2.598