Physics

Capacitor Energy

Energy stored in a capacitor.

Formula

Formula
E = ½ C V2

Variables

SymbolDefinitionType & rangeUnitsRole
C capacitance (F) real number (ℝ) F input
V voltage (V) real number (ℝ) V input

Try it yourself

Interactive calculator
Result

Worked examples

Example 1
GivenC (F) = 0.001, V (V) = 12
Result0.072
Example 2
GivenC (F) = 0.000001, V (V) = 230
Result0.02645