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: 500pF, 12V, 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 pF

E6E12E24
100 pF
150 pF
220 pF
330 pF
470 pF
680 pF
100 pF, 120 pF
150 pF, 180 pF
220 pF, 270 pF
330 pF, 390 pF
470 pF, 560 pF
680 pF, 820 pF
100 pF, 110 pF, 120 pF, 130 pF
150 pF, 160 pF, 180 pF, 200 pF
220 pF, 240 pF, 270 pF, 300 pF
330 pF, 360 pF, 390 pF, 430 pF
470 pF, 510 pF, 560 pF, 620 pF
680 pF, 750 pF, 820 pF, 910 pF

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 500pF (five hundred picofarads) capacitor from 12V (twelve volts) to 6V (six volts) releases 27nJ (twenty-seven nanojoules) of energy.
•Removing 27nJ (twenty-seven nanojoules) of energy from a 500pF (five hundred picofarads) capacitor will lower its voltage from 12V (twelve 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.