Sphere Volume Calculator
Calculate volume and surface area of a sphere from radius, diameter, volume, or surface area.
About this calculator
The Sphere Volume Calculator on NumberCals is a free, mobile-friendly tool for anyone needing to calculate volume and surface area of a sphere from radius, diameter, volume, or surface area. Enter your values in the form below and the result is computed instantly — no sign-up, no installation, no waiting.
Formula used
V = (4/3)π·r³; SA = 4π·r²
What you'll need
- What you know
- Value (e.g. 5)
What you'll get
- Radius
- Diameter
- Volume
- Surface Area
Formula
V = (4/3)π·r³; SA = 4π·r²
Result
Frequently Asked Questions
How do I find the radius from the volume? +
Pick 'Volume' and enter the value. The calculator solves r = (3V/(4π))^(1/3).
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