Capacitor charging/discharging calculator
Online calculator for formulas used in electronic circuit design and electrical engineering.Basic electric calculations:
Ohm's Law,
Ohm's Law with power,
DC power,
AC real power,
LC resonant frequency,
Capacitor charging/discharging,
Capacitive reactance,
Capacitive current + reactive power,
Capacitor energy,
Capacitor Δ energy,
RC discharging,
Inductor square pulse,
Inductive reactance,
Inductive current + reactive power,
Inductor energy,
2 parallel resistors,
3 parallel resistors
Wire and winding calculations:
Calculate Capacitor charging/discharging: 100uF, 4uA, 5min, 12V, V
A capacitor charging (or discharging) at a constant current for time t. Voltage 1 (V1) is the initial voltage. Voltage 2 (V2) is the final voltage. Use positive current for charging, negative for discharging. V2=V1+(t*I/C)
Enter any 4 values, the 5th one will be calculated:
Standard EIA Decade Values of capacitors - decade 100 to 1000 uF
| E6 | E12 | E24 |
|---|---|---|
| 100 uF 150 uF 220 uF 330 uF 470 uF 680 uF | 100 uF, 120 uF 150 uF, 180 uF 220 uF, 270 uF 330 uF, 390 uF 470 uF, 560 uF 680 uF, 820 uF | 100 uF, 110 uF, 120 uF, 130 uF 150 uF, 160 uF, 180 uF, 200 uF 220 uF, 240 uF, 270 uF, 300 uF 330 uF, 360 uF, 390 uF, 430 uF 470 uF, 510 uF, 560 uF, 620 uF 680 uF, 750 uF, 820 uF, 910 uF |
Other capacitance decades:
1 - 10 pF, 10 - 100 pF, 100 - 1000 pF, 1 - 10 nF, 10 - 100 nF, 100 - 1000 nF, 1 - 10 uF, 10 - 100 uF, 100 - 1000 uF, 1 - 10 mF, 10 - 100 mF, 100 - 1000 mF, 1 - 10 F, 10 - 100 F, 100 - 1000 F, 1 - 10 kF, 10 - 100 kF, 100 - 1000 kF,Some common voltages:
| Alkaline Zinc-Carbon |
NiMH, NiCd rechargeable |
Li-Ion 3.6V |
Li-Ion 3.7V |
Li-Ion full 4.2V |
LiFePO4 (LFP) 3.2V |
Lead-acid battery |
Power supply |
|---|---|---|---|---|---|---|---|
|
1-cell: 1.5V 2-cell: 3V 3-cell: 4.5V 4-cell: 6V 5-cell: 7.5V 6-cell: 9V 7-cell: 10.5V 8-cell: 12V 9-cell: 13.5V 10-cell: 15V 11-cell: 16.5V 12-cell: 18V |
1-cell: 1.2V 2-cell: 2.4V 3-cell: 3.6V 4-cell: 4.8V 5-cell: 6V 6-cell: 7.2V 7-cell: 8.4V 8-cell: 9.6V 9-cell: 10.8V 10-cell: 12V 11-cell: 13.2V 12-cell: 14.4V |
1-cell: 3.6V 2-cell: 7.2V 3-cell: 10.8V 4-cell: 14.4V 5-cell: 18V 6-cell: 21.6V 7-cell: 25.2V 8-cell: 28.8V 9-cell: 32.4V 10-cell: 36V 11-cell: 39.6V 12-cell: 43.2V |
1-cell: 3.7V 2-cell: 7.4V 3-cell: 11.1V 4-cell: 14.8V 5-cell: 18.5V 6-cell: 22.2V 7-cell: 25.9V 8-cell: 29.6V 9-cell: 33.3V 10-cell: 37V 11-cell: 40.7V 12-cell: 44.4V |
1-cell: 4.2V 2-cell: 8.4V 3-cell: 12.6V 4-cell: 16.8V 5-cell: 21V 6-cell: 25.2V 7-cell: 29.4V 8-cell: 33.6V 9-cell: 37.8V 10-cell: 42V 11-cell: 46.2V 12-cell: 50.4V |
1-cell: 3.2V 2-cell: 6.4V 3-cell: 9.6V 4-cell: 12.8V 5-cell: 16V 6-cell: 19.2V 7-cell: 22.4V 8-cell: 25.6V 9-cell: 28.8V 10-cell: 32V 11-cell: 35.2V 12-cell: 38.4V |
1-cell: 6V 2-cell: 12V 3-cell: 18V 4-cell: 24V 5-cell: 30V 6-cell: 36V 7-cell: 42V 8-cell: 48V 9-cell: 54V 10-cell: 60V 11-cell: 66V 12-cell: 72V |
1.8V 2.5V 3V 3.3V 5V 6V 9V 12V 15V 18V 24V 48V |
Capacitor charging/discharging formula says:
•A 100uF (one hundred microfarads) capacitor charging at 4uA (four microamperes) constant current for 5min (five minutes) will charge from 12V (twelve volts) to 24V (twenty-four volts).•If a capacitor charged from 12V (twelve volts) to 24V (twenty-four volts) in 5min (five minutes) at 4uA (four microamperes), its capacitance is 100uF (one hundred microfarads).
•When a 100uF (one hundred microfarads) capacitor charges from 12V (twelve volts) to 24V (twenty-four volts) in 5min (five minutes), it means that the charging current is 4uA (four microamperes).
•A 100uF (one hundred microfarads) capacitor will take 5min (five minutes) to charge from 12V (twelve volts) to 24V (twenty-four volts) at 4uA (four microamperes) constant current.
This is a simple online calculator for formulas used in electronic engineering and design.
This online calculator is for reference only. I do not guarantee it to work correctly. You use this at your own risk only.