Sphere Calculator
Volume = 4πr³/3; surface area = 4πr².
Inputs and units
- Radius: Enter your value in the format and unit shown.
- Dimension unit: Choose Metres, Centimetres, Millimetres, Feet, Inches.
Calculation method
Volume = 4πr³/3; surface area = 4πr².
Worked example
The example values are: Radius = 3; Dimension unit = m
- Volume (m³): 113.097335529
- Surface area (m²): 113.097335529
- Diameter (m): 6
Assumptions and limitations
Check that the inputs and units describe your situation.
Using your result
Select Calculate after changing inputs. Copy result copies the displayed output; Download result saves a text file. Reset returns the form to its example inputs. Calculations run in your browser.
Sphere Calculator FAQs
What method does this calculator use?
Volume = 4πr³/3; surface area = 4πr².
What should I check before using the result?
Check that the inputs and units describe your situation.