Cone slant height
Geometry / FREE CALCULATOR
Find the sloping length from cone base edge to apex.
Your answer starts here.
Enter your values and select Calculate to see the result and any available breakdown.
How to use this calculator
- Enter radius. Use the unit shown beside the field.
- Enter perpendicular height. Use the unit shown beside the field.
- Select Calculate and review the result. Select Reset to restore the example inputs.
How the calculation works
sqrt(Radius*Radius+Perpendicular height*Perpendicular height)
Worked example
Radius = 3; Perpendicular height = 4. Result: 5 length units.
Understand your result
Find the sloping length from cone base edge to apex. The result is expressed in length units.
Assumptions and limitations
Assumes a right circular cone. Results are rounded for display.
Questions about this tool
What does this tool calculate?
Find the sloping length from cone base edge to apex.
What should I check before using the answer?
Assumes a right circular cone.
Related guides
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