3 free online calculators with step-by-step solutions
Pick the right tool for your problem — 2D shapes, 3D solids, proofs, or composite figures.
Start with these essential coordinate geometry calculators
Coordinate geometry (also called analytic geometry) bridges algebra and shape — every line, circle, and polygon becomes an equation, and every equation maps back to a figure. The calculators below cover the day-one toolkit: distance between two points, midpoint, section formula (internal/external division), slope, line equations in point-slope / slope-intercept / general form, parallel and perpendicular tests, point-to-line distance, and area of a triangle from three vertex coordinates (Shoelace formula). Each tool accepts decimals, fractions, and negative values — useful for the algebra-heavy proofs typical of high-school analytic geometry units.
This collection has 3 coordinate geometry calculators: 3 are tagged Most Popular. The most-used tools include Distance and Midpoint Calculator, Geometry Slope Calculator, Section Formula Calculator.