To convert farads to microfarads, multiply by 1,000,000. That factor is the whole relationship: both units measure how much charge a component stores per volt, so the conversion is a proportion with no offset and no substance-specific constant.
Microfarads cover electrolytics, motor-run capacitors and audio coupling — the values most repair jobs deal with. The farad is the SI unit of capacitance: one coulomb of charge stored per volt applied. A whole farad is enormous, which is why practical parts are labelled in fractions of one.
Capacitor labelling. The same part may be printed 100 nF, 0.1 uF, or the three-digit code 104, and all three mean the same component. Nanofarads are the awkward middle: European schematics favour nF, American ones favour uF. Below the calculator there is a step table for the values people look up most, and a second table putting real how much charge a component stores per volt figures into microfarads so the number you get has something to be compared against.
The formula
farads- The amount you are converting, in farads
1,000,000- The exact number of microfarads in one farad
microfarads- The converted result
How it works, step by step
- Enter the value in farads.
- It is multiplied by 1,000,000, the exact factor between the two units.
- The answer is shown in microfarads, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Power supply smoothing capacitor: 0.0047 F in microfarads
Take power supply smoothing capacitor, roughly 0.0047 F. The conversion is a single multiplication — 0.0047 × 1e+06 — giving 4700 µF. Because the relationship is proportional, doubling the input doubles the answer to 9400 µF.
Supercapacitor cell: 1 F in microfarads
At 1 F (supercapacitor cell), the same quantity in microfarads is 1 × 1e+06 = 1e+06 µF. One farad is 1e+06 microfarads, so the numbers grow as expected.
How to read your score
Frequently asked questions
How many microfarads are in one farad?
Exactly 1,000,000. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert farads to microfarads?
microfarads = farads × 1,000,000. Reversed, farads = microfarads ÷ 1,000,000, which is the same as multiplying by 1e-06.
Which is the bigger unit, the farad or the microfarad?
The farad. One farad equals 1e+06 microfarads.
What does this quantity actually measure?
Both units measure how much charge a component stores per volt. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a farad?
The farad is the SI unit of capacitance: one coulomb of charge stored per volt applied. A whole farad is enormous, which is why practical parts are labelled in fractions of one.
What is a microfarad?
Microfarads cover electrolytics, motor-run capacitors and audio coupling — the values most repair jobs deal with.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Farads to microfarads reference tables
| Farads | Microfarads |
|---|---|
| 0.5 F | 500,000 µF |
| 1 F | 1e+06 µF |
| 2 F | 2e+06 µF |
| 3 F | 3e+06 µF |
| 5 F | 5e+06 µF |
| 10 F | 1e+07 µF |
| 20 F | 2e+07 µF |
| 25 F | 2.5e+07 µF |
| 50 F | 5e+07 µF |
| 75 F | 7.5e+07 µF |
| 100 F | 1e+08 µF |
| 250 F | 2.5e+08 µF |
| 500 F | 5e+08 µF |
| 1000 F | 1e+09 µF |
| 5000 F | 5e+09 µF |
Exact factor: 1 farad = 1,000,000 microfarads.
| Quantity | F | µF |
|---|---|---|
| Crystal load capacitor | 2.200e-11 F | 2.2e-05 µF |
| Decoupling capacitor | 1e-07 F | 0.1 µF |
| Audio coupling capacitor | 1e-06 F | 1 µF |
| Motor-run capacitor | 2.5e-05 F | 25 µF |
| Power supply smoothing capacitor | 0.0047 F | 4700 µF |
| Supercapacitor cell | 1 F | 1e+06 µF |
Published reference values, converted with the same factor this page uses.