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Contents

## Related Tools

- Sphere surface area to diameter calculator
- Calculate sphere volume from diameter
- Convert an area to different units
- Length and distance converter
- Calculate circle area from diameter
- Calculate circle circumference from diameter
- Calculate circle radius from diameter

## User Guide

This tool will calculate the surface area of a sphere from the diameter, and will convert different measurement units for diameter and surface area.

### Formula

The formula used to calculate sphere volume is:

A = 4 · π · (ø / 2)^{2}

A = π · ø^{2}

#### Symbols

- A = Sphere surface area
- π = Pi = 3.14159…
- ø = Sphere diameter

### Diameter of Sphere

Enter the diameter of a sphere. The diameter of a sphere is the length of a straight line drawn between two points on the surface of the sphere, where the line also passes through the centre of the sphere.

### Surface Area of Sphere

This is the total area of the surface of a sphere with the specified diameter. The sphere surface area represents the total area of the outer surface of the sphere if it was to be laid out flat as a two-dimensional shape, e.g. a true scale map of the world is a 2D scaled representation of the surface area of the world.