Home Ellipsoid Surface Area Calculator Ellipsoid Surface Area Calculator Admin Ellipsoid Surface Area Calculator Ellipsoid Surface Area Calculator Enter Semi-major Axis (a): Meters (m) Kilometers (km) Centimeters (cm) Millimeters (mm) Nanometers (nm) Inches (in) Feet (ft) Yards (yd) Miles (mi) Enter Semi-intermediate Axis (b): Meters (m) Kilometers (km) Centimeters (cm) Millimeters (mm) Nanometers (nm) Inches (in) Feet (ft) Yards (yd) Miles (mi) Enter Semi-minor Axis (c): Meters (m) Kilometers (km) Centimeters (cm) Millimeters (mm) Nanometers (nm) Inches (in) Feet (ft) Yards (yd) Miles (mi) Select Surface Area Unit: Square Meters (m²) Square Centimeters (cm²) Square Feet (ft²) Square Millimeters (mm²) Square Inches (in²) Square Yards (yd²) Square Miles (mi²) Calculate Surface Area Refresh Surface Area: Newer Older