Attowatt is 1e-18 watt units.
Attowatts to Rontowatts Converter — aW to rW
Convert Attowatt (aW) to Rontowatt (rW) using the exact conversion factor (1 attowatt = 1,000,000,000 rontowatt). See the formula, worked examples, and conversion table.
Attowatts to Rontowatts converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Rontowatt is 1e-27 watt units.
Result = input x 1e-18 / 1e-27.
Power units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Attowatts to Rontowatts
Attowatt and Rontowatt both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Attowatt is 1e-18 watt units, and rontowatt is 1e-27 watt units.
Formula
rontowatts = attowatts × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 attowatt equals 1e-18 base units, and 1 rontowatt equals 1e-27 base units, so dividing one by the other gives the direct attowatt-to-rontowatt factor of 1000000000.
Simple example
1 aW × 1000000000 = 1,000,000,000 rW
1 attowatt = 1,000,000,000 rontowatts.
Real-world example
100 aW × 1000000000 = 100,000,000,000 rW
100 attowatts = 100,000,000,000 rontowatts.
Conversion table
| Attowatt (aW) | Rontowatt (rW) |
|---|---|
| 1 aW | 1,000,000,000 rW |
| 10 aW | 10,000,000,000 rW |
| 50 aW | 50,000,000,000 rW |
| 100 aW | 100,000,000,000 rW |
| 500 aW | 500,000,000,000 rW |
| 1,000 aW | 1e+12 rW |
Reverse conversion: Rontowatt to Attowatt
1 rW × 1e-9 = 1e-9 aW
1 rontowatt = 1e-9 attowatts.
attowatts = rontowatts × 1e-9
For a page dedicated to this direction, see Rontowatt to Attowatt.
Understanding the Attowatt (aW)
Attowatt is 1e-18 watt units.
Understanding the Rontowatt (rW)
Rontowatt is 1e-27 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many rontowatts are in 1 attowatt?
1 attowatt equals 1,000,000,000 rontowatts, using the exact defined conversion factor rather than an estimate.
How do I convert attowatt to rontowatt?
Multiply the attowatt value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert rontowatt back to attowatt?
Use the reverse factor: 1 rontowatt equals 1e-9 attowatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a attowatt?
Attowatt (aW) is a unit of engineering.
What is a rontowatt?
Rontowatt (rW) is a unit of engineering.
Is the attowatt to rontowatt conversion exact?
Yes. Both attowatt and rontowatt are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.