Exanewton is 1000000000000000000 newton units.
Exanewtons to Zeptonewtons Converter — EN to zN
Convert Exanewton (EN) to Zeptonewton (zN) using the exact conversion factor (1 exanewton = 1e+39 zeptonewton). See the formula, worked examples, and conversion table.
Exanewtons to Zeptonewtons 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.
Zeptonewton is 1e-21 newton units.
Result = input x 1e+18 / 1e-21.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Exanewtons to Zeptonewtons
Exanewton and Zeptonewton 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: Exanewton is 1000000000000000000 newton units, and zeptonewton is 1e-21 newton units.
Formula
zeptonewtons = exanewtons × 1e+39
This factor comes from each unit's defined relationship to the category's base unit: 1 exanewton equals 1e+18 base units, and 1 zeptonewton equals 1e-21 base units, so dividing one by the other gives the direct exanewton-to-zeptonewton factor of 1e+39.
Simple example
1 EN × 1e+39 = 1e+39 zN
1 exanewton = 1e+39 zeptonewtons.
Real-world example
10 EN × 1e+39 = 1e+40 zN
10 exanewtons = 1e+40 zeptonewtons.
Conversion table
| Exanewton (EN) | Zeptonewton (zN) |
|---|---|
| 1 EN | 1e+39 zN |
| 5 EN | 5e+39 zN |
| 10 EN | 1e+40 zN |
| 50 EN | 5e+40 zN |
| 100 EN | 1e+41 zN |
| 1,000 EN | 1e+42 zN |
Reverse conversion: Zeptonewton to Exanewton
1e+39 zN × 1e-39 = 1 EN
1e+39 zeptonewtons = 1 exanewtons.
exanewtons = zeptonewtons × 1e-39
For a page dedicated to this direction, see Zeptonewton to Exanewton.
Understanding the Exanewton (EN)
Exanewton is 1000000000000000000 newton units.
Understanding the Zeptonewton (zN)
Zeptonewton is 1e-21 newton units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zeptonewtons are in 1 exanewton?
1 exanewton equals 1e+39 zeptonewtons, using the exact defined conversion factor rather than an estimate.
How do I convert exanewton to zeptonewton?
Multiply the exanewton value by 1e+39. The converter above does this instantly to whatever precision you set.
How do I convert zeptonewton back to exanewton?
Use the reverse factor: 1 zeptonewton equals 1e-39 exanewtons. You can also use the swap control in the converter above to flip the direction instantly.
What is a exanewton?
Exanewton (EN) is a unit of force.
What is a zeptonewton?
Zeptonewton (zN) is a unit of force.
Is the exanewton to zeptonewton conversion exact?
Yes. Both exanewton and zeptonewton are defined by fixed standards rather than physical artifacts, so the factor of 1e+39 used above is exact to as many digits as you choose to display.