Area and Perimeter

Use this Surface area of a cone calculator to find the total outside area of a cone using radius and slant height, with clear steps and examples.

Use an Area of an ellipse calculator to find ellipse area from the semi-major and semi-minor axes. Includes formula, units, and examples.

Use this Surface area of a cylinder calculator to find total surface area from radius and height. Includes unit support and clear steps.

Use this Area of trapezoid Calculator to find trapezoid area from the two bases and height. Get instant results and learn the formula.

Use this sphere-volume-and-area-calculator to find a sphere’s surface area and volume from radius or diameter. Includes formulas, units, and examples.