Rontonewton is 1e-27 newton units.
Rontonewtons to Zeptonewtons Converter — rN to zN
Convert Rontonewton (rN) to Zeptonewton (zN) using the exact conversion factor (1 rontonewton = 0.000001 zeptonewton). See the formula, worked examples, and conversion table.
Rontonewtons 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-27 / 1e-21.
Force uses the newton as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Rontonewtons to Zeptonewtons
Rontonewton 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: Rontonewton is 1e-27 newton units, and zeptonewton is 1e-21 newton units.
Formula
zeptonewtons = rontonewtons × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 rontonewton equals 1e-27 base units, and 1 zeptonewton equals 1e-21 base units, so dividing one by the other gives the direct rontonewton-to-zeptonewton factor of 0.000001.
Simple example
1 rN × 0.000001 = 0.000001 zN
1 rontonewton = 0.000001 zeptonewtons.
Real-world example
10 rN × 0.000001 = 0.00001 zN
10 rontonewtons = 0.00001 zeptonewtons.
Conversion table
| Rontonewton (rN) | Zeptonewton (zN) |
|---|---|
| 1 rN | 0.000001 zN |
| 5 rN | 0.000005 zN |
| 10 rN | 0.00001 zN |
| 50 rN | 0.00005 zN |
| 100 rN | 0.0001 zN |
| 1,000 rN | 0.001 zN |
Reverse conversion: Zeptonewton to Rontonewton
0.000001 zN × 1000000 = 1 rN
0.000001 zeptonewtons = 1 rontonewtons.
rontonewtons = zeptonewtons × 1000000
For a page dedicated to this direction, see Zeptonewton to Rontonewton.
Understanding the Rontonewton (rN)
Rontonewton is 1e-27 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 rontonewton?
1 rontonewton equals 0.000001 zeptonewtons, using the exact defined conversion factor rather than an estimate.
How do I convert rontonewton to zeptonewton?
Multiply the rontonewton value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert zeptonewton back to rontonewton?
Use the reverse factor: 1 zeptonewton equals 1,000,000 rontonewtons. You can also use the swap control in the converter above to flip the direction instantly.
What is a rontonewton?
Rontonewton (rN) is a unit of force.
What is a zeptonewton?
Zeptonewton (zN) is a unit of force.
Is the rontonewton to zeptonewton conversion exact?
Yes. Both rontonewton and zeptonewton 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.