Geometry

Surface Area Calculator

Compute the surface area of prisms, pyramids, cylinders, cones, and spheres.

Live Calculator · Step-by-Step · Geometry
Inputs
Result
Result
Enter values and calculate.

Step-by-Step Work

Your explanation will appear here.

Visual
Related Tools
Slope of a Line (Rise over Run)
Open tool →
Special Right Triangles
Open tool →
Geometric Transformations
Open tool →
Triangle Area
Open tool →
Triangle Centers
Open tool →
All calculators
Open tool →
Put It Into Practice

The calculator shows the steps — a quiz proves you can do them on your own.

Geometry Practice Quizzes →
Free chapter quizzes with explanations for every answer
Free Geometry Diagnostic →
Adaptive check that maps your strong and weak topics

Stuck on Geometry? Get 1-on-1 help

Alexander tutors all math and CS levels — $55/session, free consultation.

Book a Free Consultation → Or call (657) 465-8108