Zettanewton is 1e+21 newton units.
Zettanewtons to Yoctonewtons Converter — ZN to yN
Convert Zettanewton (ZN) to Yoctonewton (yN) using the exact conversion factor (1 zettanewton = 1e+45 yoctonewton). See the formula, worked examples, and conversion table.
Zettanewtons to Yoctonewtons converter
Converter
Force Converter
Convert newtons, dynes, pound-force, kilogram-force, kips, and ounce-force.
Context values
Some unit families need one extra value for a physically accurate result.
Yoctonewton is 1e-24 newton units.
Result = input x 1e+21 / 1e-24.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Zettanewtons to Yoctonewtons
Zettanewton and Yoctonewton both measure force, and the conversion matters whenever an SI-trained engineer needs to compare notes with a US-trained one, or vice versa. Specifically: Zettanewton is 1e+21 newton units, and yoctonewton is 1e-24 newton units.
Formula
yoctonewtons = zettanewtons × 1e+45
This factor comes from each unit's defined relationship to the category's base unit: 1 zettanewton equals 1e+21 base units, and 1 yoctonewton equals 1e-24 base units, so dividing one by the other gives the direct zettanewton-to-yoctonewton factor of 1e+45.
Simple example
1 ZN × 1e+45 = 1e+45 yN
1 zettanewton = 1e+45 yoctonewtons.
Real-world example
10 ZN × 1e+45 = 1e+46 yN
10 zettanewtons = 1e+46 yoctonewtons.
Conversion table
| Zettanewton (ZN) | Yoctonewton (yN) |
|---|---|
| 1 ZN | 1e+45 yN |
| 5 ZN | 5e+45 yN |
| 10 ZN | 1e+46 yN |
| 50 ZN | 5e+46 yN |
| 100 ZN | 1e+47 yN |
| 1,000 ZN | 1e+48 yN |
Reverse conversion: Yoctonewton to Zettanewton
1e+45 yN × 1e-45 = 1 ZN
1e+45 yoctonewtons = 1 zettanewtons.
zettanewtons = yoctonewtons × 1e-45
For a page dedicated to this direction, see Yoctonewton to Zettanewton.
Understanding the Zettanewton (ZN)
Zettanewton is 1e+21 newton units.
Understanding the Yoctonewton (yN)
Yoctonewton is 1e-24 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many yoctonewtons are in 1 zettanewton?
1 zettanewton equals 1e+45 yoctonewtons, using the exact defined conversion factor rather than an estimate.
How do I convert zettanewton to yoctonewton?
Multiply the zettanewton value by 1e+45. The converter above does this instantly to whatever precision you set.
How do I convert yoctonewton back to zettanewton?
Use the reverse factor: 1 yoctonewton equals 1e-45 zettanewtons. You can also use the swap control in the converter above to flip the direction instantly.
What is a zettanewton?
Zettanewton (ZN) is a unit of force.
What is a yoctonewton?
Yoctonewton (yN) is a unit of force.
Is the zettanewton to yoctonewton conversion exact?
Yes. Both zettanewton and yoctonewton are defined by fixed standards rather than physical artifacts, so the factor of 1e+45 used above is exact to as many digits as you choose to display.