Sphere Volume Calculator 計算機

この計算機は扱います: Calculate sphere volume and surface area from radius.

Geometry 更新 2026-05-11

入力

Radius (units)

Volume (cubic units) 値を入力して計算します。

Surface area (square units) 値を入力して計算します。

sphere volume = 4/3 x pi x radius cubed; surface area = 4 x pi x radius squared.

この計算機は扱います: Calculate sphere volume and surface area from radius.

Radius 4 gives volume about 268.08 and surface area about 201.06.

Use radius, not diameter.

Round only after the final volume or area is calculated.

What inputs does this calculator need?

Radius.

How should I round the result?

Keep extra digits while comparing values, then round for the final decision or report.

Can I reuse the result in another calculation?

Yes, but preserve the original inputs and units so the next calculation stays traceable.