Petawatt is 1000000000000000 watt units.
Petawatts to Zettawatts Converter — PW to ZW
Convert Petawatt (PW) to Zettawatt (ZW) using the exact conversion factor (1 petawatt = 0.000001 zettawatt). See the formula, worked examples, and conversion table.
Petawatts to Zettawatts 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.
Zettawatt is 1e+21 watt units.
Result = input x 1e+15 / 1e+21.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Petawatts to Zettawatts
Petawatt and Zettawatt 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 zettawatt is 1e+21 watt units.
Formula
zettawatts = petawatts × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 petawatt equals 1e+15 base units, and 1 zettawatt equals 1e+21 base units, so dividing one by the other gives the direct petawatt-to-zettawatt factor of 0.000001.
Simple example
1 PW × 0.000001 = 0.000001 ZW
1 petawatt = 0.000001 zettawatts.
Real-world example
120 PW × 0.000001 = 0.00012 ZW
120 petawatts = 0.00012 zettawatts.
Conversion table
| Petawatt (PW) | Zettawatt (ZW) |
|---|---|
| 1 PW | 0.000001 ZW |
| 5 PW | 0.000005 ZW |
| 12 PW | 0.000012 ZW |
| 24 PW | 0.000024 ZW |
| 120 PW | 0.00012 ZW |
| 240 PW | 0.00024 ZW |
Reverse conversion: Zettawatt to Petawatt
0.000001 ZW × 1000000 = 1 PW
0.000001 zettawatts = 1 petawatt.
petawatts = zettawatts × 1000000
For a page dedicated to this direction, see Zettawatt to Petawatt.
Understanding the Petawatt (PW)
Petawatt is 1000000000000000 watt units.
Understanding the Zettawatt (ZW)
Zettawatt is 1e+21 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zettawatts are in 1 petawatt?
1 petawatt equals 0.000001 zettawatts, using the exact defined conversion factor rather than an estimate.
How do I convert petawatt to zettawatt?
Multiply the petawatt value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert zettawatt back to petawatt?
Use the reverse factor: 1 zettawatt equals 1,000,000 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 zettawatt?
Zettawatt (ZW) is a unit of electricity.
Is the petawatt to zettawatt conversion exact?
Yes. Both petawatt and zettawatt are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 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.