Sphere Surface Area Table: Surface area by Radius
Reference table of surface area for Sphere Surface Area across a range of radius values — exact, engine-computed figures you can read off at a glance.
Sphere Surface Area Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Surface area
314.1593
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Sphere Surface Area Calculator
The Sphere Surface Area Calculator works out your surface area in an instant. Enter radius and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the radius.
- Read off your surface area — the calculator updates automatically, with no button to press.
Formula
The Sphere Surface Area Calculator uses the formula:
Surface area = 4 × 3.141592653589793 × Radius ^ 2
Worked example
For example, with radius of 5, the surface area is 314.1593.
| Radius | 5 |
|---|
| Surface area | 314.1593 |
|---|
Results are estimates for educational use, not professional advice.
Key terms explained
- Surface area
- The total area of all the outer faces of a three-dimensional object.
- Radius
- The distance from the centre of a circle or sphere to its edge.
- Area
- The amount of two-dimensional space a shape covers, measured in square units.
Frequently asked questions
It is 4πr². For a radius of 5, the surface area is about 314.16 square units.
It grows with the square of the radius, so doubling the radius makes the surface area four times larger.
Surface area (4πr²) measures the outer skin; volume (4/3 πr³) measures the space inside.
Halve the diameter to get the radius, then apply 4πr².
The Sphere Surface Area Calculator uses the formula: Surface area = 4 × 3.141592653589793 × Radius ^ 2. For example, with radius of 5, the surface area is 314.1593.
Enter the radius. Read off your surface area — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Sphere Surface Area: Formula, Steps & Examples
Learn how to calculate Sphere Surface Area — the formula explained step by step, with worked examples and a free calculator to check your answer.