Petawatt is 1000000000000000 watt units.
Petawatts to Femtowatts Converter — PW to fW
Convert Petawatt (PW) to Femtowatt (fW) using the exact conversion factor (1 petawatt = 1e+30 femtowatt). See the formula, worked examples, and conversion table.
Petawatts to Femtowatts converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Femtowatt is 1e-15 watt units.
Result = input x 1e+15 / 1e-15.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Petawatts to Femtowatts
Petawatt and Femtowatt both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Petawatt is 1000000000000000 watt units, and femtowatt is 1e-15 watt units.
Formula
femtowatts = petawatts × 1e+30
This factor comes from each unit's defined relationship to the category's base unit: 1 petawatt equals 1e+15 base units, and 1 femtowatt equals 1e-15 base units, so dividing one by the other gives the direct petawatt-to-femtowatt factor of 1e+30.
Simple example
1 PW × 1e+30 = 1e+30 fW
1 petawatt = 1e+30 femtowatts.
Real-world example
120 PW × 1e+30 = 1.2e+32 fW
120 petawatts = 1.2e+32 femtowatts.
Conversion table
| Petawatt (PW) | Femtowatt (fW) |
|---|---|
| 1 PW | 1e+30 fW |
| 5 PW | 5e+30 fW |
| 12 PW | 1.2e+31 fW |
| 24 PW | 2.4e+31 fW |
| 120 PW | 1.2e+32 fW |
| 240 PW | 2.4e+32 fW |
Reverse conversion: Femtowatt to Petawatt
1e+30 fW × 1e-30 = 1 PW
1e+30 femtowatts = 1 petawatts.
petawatts = femtowatts × 1e-30
For a page dedicated to this direction, see Femtowatt to Petawatt.
Understanding the Petawatt (PW)
Petawatt is 1000000000000000 watt units.
Understanding the Femtowatt (fW)
Femtowatt is 1e-15 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtowatts are in 1 petawatt?
1 petawatt equals 1e+30 femtowatts, using the exact defined conversion factor rather than an estimate.
How do I convert petawatt to femtowatt?
Multiply the petawatt value by 1e+30. The converter above does this instantly to whatever precision you set.
How do I convert femtowatt back to petawatt?
Use the reverse factor: 1 femtowatt equals 1e-30 petawatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a petawatt?
Petawatt (PW) is a unit of electricity.
What is a femtowatt?
Femtowatt (fW) is a unit of electricity.
Is the petawatt to femtowatt conversion exact?
Yes. Both petawatt and femtowatt are defined by fixed standards rather than physical artifacts, so the factor of 1e+30 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.