Oberflächenrechner
Rechner
Free online surface area calculators for every 3D shape — sphere, cylinder, cone, cube, prism, pyramid, ellipsoid, torus, and more. Instant results with step-by-step breakdowns.
26 Rechner
7 Categories
6 Unit systems
Round Shapes
Spheres, cones, cylinders, and other curved-surface solids
Zylinder-Oberflächenrechner
SA = 2πr(r + h)Kugel-Oberflächenrechner
SA = 4πr²Kegel-Oberflächenrechner
SA = πr(r + √(r² + h²))Ellipsoid-Rechner
SA ≈ 4π[((a^1.6b^1.6 + a^1.6c^1.6 + b^1.6c^1.6) / 3)]^(1/1.6)Torus-Rechner
SA = 4π²RrKapsel-Rechner
SA = 4πr² + 2πrhKugelkappen-Rechner
SA = 2πRh + πr²Kegelstumpf-Rechner
SA = π(R² + r²) + π(R + r)√((R - r)² + h²)Prisms & Cubes
Rectangular, triangular, trapezoidal, and generic prisms
Pyramids
Square-base and triangular-base pyramids
Health & Science
Body surface area and medical calculators
Project Tools
Pool, room, and practical project estimators
Industrial
Pipes, hollow cylinders, and engineering shapes