Enter values into the yellow fields - the rest will be calculated automatically.
If you change a value in the field, all the marked ones recalculate accordingly.
For decimals you can enter either points or commas
as decimal marks (but only one decimal point in a value).


r =
d = m
O = m
P = m²
h = m
Q = m²
S = m²
V = m³
to 6 digits

The result will be in the units that you enter into the fields.
For example: if you enter decimetres, calculation will be also in decimetres.

If a NaN error occurs,
you have probably entered invalid values.


d = 2 r [m]
O = π d = 2 π r [m]
P = π d²/4 = π [m²]
Q = π d h = 2 π r h [m²]
S = 2 P + Q = 2 π r (r + h) [m²]
V = π d²/4 h = π r² h [m³]
+ other reverse formulas:
Cylinder formula

r … radius = ½ of diameter

d … diameter = 2 × radius

h … height

S … base center of cylinder

o … axis

π (Pi) = 3,14 (about)

Cylinder and

In construction :-)

Calculator cylinder online

Cylinder calculator


How to calculate ...

Bold shapes and objects are already in operation. The others contain only a formula.

You might be interested