online electronic calculator - Ohm's law and much more

Capacitor Δ energy 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, System bandwidth, Bandwidth ↔ rise time

Wire and winding calculations:

Diameter ↔ cross section ↔ AWG, Wire resistance, Wire weight, Current density, Wire R thermal drift

Calculate Capacitor Δ energy: 500uF, 32V, 6V, mJ


Energy added to a pre-charged capacitor or released by partially discharging a capacitor. Here, added energy is positive, released energy is negative. You can calculate the change of energy stored in a capacitor knowing the capacitance, the initial voltage 1 and final voltage 2. You can also calculate how the voltage of a capacitor with a known capacitance changes by storing a given amount of energy in it or releasing a given amount of energy from it.   E = ½ C.(V22-V12)   formula.

Enter any 3 values, the 4th field will be calculated:

Capacitance: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Voltage 1: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Voltage 2: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Δ Energy: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Output metric prefix:   Automatic    User-selected
 

Standard EIA Decade Values of capacitors - decade 100 to 1000 uF

E6E12E24
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 Δ energy formula says:

•Discharging a 500uF (five hundred microfarads) capacitor from 32V (thirty-two volts) to 6V (six volts) releases 247mJ (two hundred and fourty-seven millijoules) of energy.
•Removing 247mJ (two hundred and fourty-seven millijoules) of energy from a 500uF (five hundred microfarads) capacitor will lower its voltage from 32V (thirty-two volts) to 6V (six volts).



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.