Surface Area of a Cylinder Calculator
Calculates the surface area of a cylinder from the measurements you enter. Use any unit, as long as all inputs use the same one.
Result
- Surface area
- 471.2389
How to use the surface area of a cylinder calculator
- Enter the radius.
- Enter the height.
- The results update as you type, or press Calculate.
- Read the surface area first, then the supporting figures below it.
Formula
2πr(r + h)
Worked example
For example, with these inputs:
- Radius: 5
- Height: 10
the calculator returns:
- Surface area: 471.2389
Background
In everyday life the same maths shows up in discounts, recipe scaling, renovation measurements and comparing prices per unit. Being comfortable with it saves money and avoids costly measuring mistakes.
These calculations appear throughout the Singapore syllabus, from primary school percentages and fractions to secondary school algebra and geometry. Understanding the formula makes problem sums easier because you can recognise which quantity is missing.
Frequently asked questions
How does the surface area of a cylinder calculator work?
It applies this formula: 2πr(r + h)
Can I use any units?
Yes, as long as every input uses the same unit. The answer will be in that unit (squared for areas, cubed for volumes).