Understanding Sphere Volume to Gallons
Calculates spherical volume and converts to US liquid gallons (231 cubic inches = 1 gallon).
Worked Example
For radius r = 10 inches: V ≈ 4,188.79 in³ → 4,188.79 / 231 ≈ 18.13 US Gallons.
Calculates spherical volume and converts to US liquid gallons (231 cubic inches = 1 gallon).
For radius r = 10 inches: V ≈ 4,188.79 in³ → 4,188.79 / 231 ≈ 18.13 US Gallons.
Calculate exact cubic volume from radius or diameter with 3D model.
Compute outer boundary surface area using formula A = 4πr².
Find radius from known volume, surface area, or circumference.
Direct diameter calculations from radius or internal volume.
Calculate great circle equator perimeter length using C = 2πr.
Read Archimedes' ancient discovery and modern calculus proof.