Surface Area of a Cone Calculator
h
r
l
⚡ Quick Examples:
r=5, h=12
r=3, l=5
d=10, h=8
r=7.5, h=15
Input Mode
Radius & Height
Radius & Slant Height
Diameter & Height
Radius (r)
Height (h)
Unit
units
millimeters (mm)
centimeters (cm)
meters (m)
inches (in)
feet (ft)
yards (yd)
Decimal Precision
2 decimal places
3 decimal places
4 decimal places
5 decimal places
6 decimal places
7 decimal places
8 decimal places
9 decimal places
10 decimal places
11 decimal places
12 decimal places
📐
Calculate Surface Area