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Both calculators run independently — change the inputs on either side to compare results.

Ellipse Area and Circumference Calculator

Calculate the area, circumference (perimeter), eccentricity, and focal distance of an ellipse using its semi-major and semi-minor axes. Essential for astronomy, engineering, and analytic geometry.

Semi-Major Axis (a) (units)

Semi-Minor Axis (b) (units)

Calculate

Circumference Method

Fill in the required fields to see your result.

Geometry

Trapezoid Area and Perimeter Calculator

Compute the area or perimeter of any trapezoid instantly. Enter both parallel bases and the height for area, or all four sides for perimeter — ideal for geometry homework and construction layouts.

Base 1 (Top) (units)

Base 2 (Bottom) (units)

Height (units)

Left Side (for perimeter) (units)

Right Side (for perimeter) (units)

Calculate

Fill in the required fields to see your result.

Key differences

	Ellipse Area and Circumference Calculator	Trapezoid Area and Perimeter Calculator
Category	Geometry	Geometry
Inputs required	4	6
Result	Result (units²/units)	Result (units²/units)
What it does	Calculate the area, circumference (perimeter), eccentricity, and focal distance of an ellipse using its semi-major and semi-minor axes. Essential for astronomy, engineering, and analytic geometry.	Compute the area or perimeter of any trapezoid instantly. Enter both parallel bases and the height for area, or all four sides for perimeter — ideal for geometry homework and construction layouts.