מחשבון נפח כדור

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איפוס הדפסה

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מבוא

Sphere Volume Calculator — Volume and surface area of a sphere. Enter Radius to get an instant, accurate result.

נוסחה

Volume = (4/3)πr³. Surface area = 4πr².

צעד אחר צעד

1. Enter the Radius.
2. Click Calculate to see your result instantly.

דוגמה מהעולם האמיתי

Example: With Radius = 5, the Sphere Volume Calculator gives Volume: 523.5988, Surface Area: 314.1593.

שאלות נפוצות

How sensitive is volume to radius?

Very — volume scales with the cube of the radius, so doubling the radius multiplies the volume by 8.

What if I only know the diameter?

Divide it by 2 to get the radius before entering it.

What inputs does the Sphere Volume Calculator need?

You'll need to provide: Radius. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the Sphere Volume Calculator?

The Sphere Volume Calculator applies the formula exactly as calculated — Volume = (4/3)πr³. Surface area = 4πr². — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Sphere Volume Calculator free to use?

Yes, the Sphere Volume Calculator is completely free, requires no signup, and runs instantly in your browser.

אודות מחשבון נפח כדור

The Sphere Volume Calculator uses a real, verifiable formula — Volume = (4/3)πr³. Surface area = 4πr². — so results are accurate every time, not an approximation.