Parallel Capacitor Calculator Formula
Understand the math behind the parallel capacitor calculator. Each variable explained with a worked example.
Formulas Used
Total Capacitance
total_cap = c1_uf + c2_uf + c3_ufVariables
| Variable | Description | Default |
|---|---|---|
c1_uf | Capacitor C1(µF) | 10 |
c2_uf | Capacitor C2(µF) | 22 |
c3_uf | Capacitor C3 (0 to skip)(µF) | 0 |
How It Works
Parallel Capacitors
C_total = C1 + C2 + C3 + ...
Capacitors in parallel add directly (opposite of resistors). This increases total capacitance.
Worked Example
10 uF and 22 uF in parallel.
c1_uf = 10c2_uf = 22c3_uf = 0
- 01C_total = 10 + 22 = 32 uF
Frequently Asked Questions
Why do parallel capacitors add?
Each capacitor stores charge independently. The total charge (and thus capacitance) is the sum.
What about voltage rating?
In parallel, each capacitor sees the same voltage. Use the lowest voltage rating as the limit.
When would I parallel capacitors?
To increase total capacitance or to combine different types (bulk electrolytic + ceramic bypass).
Ready to run the numbers?
Open Parallel Capacitor Calculator