Calculator
Results
Diagram
Teacher mode
Use Alt+S to copy a shareable URL and Alt+L to copy the LaTeX summary. Tip: use ArrowUp/ArrowDown to nudge numeric inputs (default step: 1; for m and r: 0.1; Shift ×10, Alt ×0.1, Ctrl/Cmd ×0.01).
Frequently asked questions
Which coordinate geometry formulas does this toolkit cover?
The calculator handles distance, midpoint, slope, two-point and point–slope lines, parallel and perpendicular lines through a point, perpendicular bisectors, point–line distance, line intersections, circles from center and radius or points, circumcircle of three points, and line–circle intersections.
How do I share the step-by-step working with students?
After computing a result, use the Copy shareable URL button or press Alt+S to generate a link with the inputs embedded. The Copy LaTeX button (Alt+L) exports the formulas for worksheets or handouts.