Giganewton is 1000000000 newton units.
Giganewtons to Quettanewtons Converter — GN to QN
Convert Giganewton (GN) to Quettanewton (QN) using the exact conversion factor (1 giganewton = 1e-21 quettanewton). See the formula, worked examples, and conversion table.
Giganewtons to Quettanewtons 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.
Quettanewton is 1e+30 newton units.
Result = input x 1e+9 / 1e+30.
Force units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Giganewtons to Quettanewtons
Giganewton and Quettanewton 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: Giganewton is 1000000000 newton units, and quettanewton is 1e+30 newton units.
Formula
quettanewtons = giganewtons × 1e-21
This factor comes from each unit's defined relationship to the category's base unit: 1 giganewton equals 1000000000 base units, and 1 quettanewton equals 1e+30 base units, so dividing one by the other gives the direct giganewton-to-quettanewton factor of 1e-21.
Simple example
1 GN × 1e-21 = 1e-21 QN
1 giganewton = 1e-21 quettanewtons.
Real-world example
100 GN × 1e-21 = 1e-19 QN
100 giganewtons = 1e-19 quettanewtons.
Conversion table
| Giganewton (GN) | Quettanewton (QN) |
|---|---|
| 1 GN | 1e-21 QN |
| 10 GN | 1e-20 QN |
| 50 GN | 5e-20 QN |
| 100 GN | 1e-19 QN |
| 500 GN | 5e-19 QN |
| 1,000 GN | 1e-18 QN |
Reverse conversion: Quettanewton to Giganewton
1e-21 QN × 1e+21 = 1 GN
1e-21 quettanewtons = 1 giganewtons.
giganewtons = quettanewtons × 1e+21
For a page dedicated to this direction, see Quettanewton to Giganewton.
Understanding the Giganewton (GN)
Giganewton is 1000000000 newton units.
Understanding the Quettanewton (QN)
Quettanewton is 1e+30 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many quettanewtons are in 1 giganewton?
1 giganewton equals 1e-21 quettanewtons, using the exact defined conversion factor rather than an estimate.
How do I convert giganewton to quettanewton?
Multiply the giganewton value by 1e-21. The converter above does this instantly to whatever precision you set.
How do I convert quettanewton back to giganewton?
Use the reverse factor: 1 quettanewton equals 1e+21 giganewtons. You can also use the swap control in the converter above to flip the direction instantly.
What is a giganewton?
Giganewton (GN) is a unit of engineering.
What is a quettanewton?
Quettanewton (QN) is a unit of engineering.
Is the giganewton to quettanewton conversion exact?
Yes. Both giganewton and quettanewton are defined by fixed standards rather than physical artifacts, so the factor of 1e-21 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.