Rontosiemens is 1e-27 siemens units.
Rontosiemens to Yoctosiemens Converter — rS to yS
Convert Rontosiemens (rS) to Yoctosiemens (yS) using the exact conversion factor (1 rontosiemens = 0.001 yoctosiemens). See the formula, worked examples, and conversion table.
Rontosiemens to Yoctosiemens converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Yoctosiemens is 1e-24 siemens units.
Result = input x 1e-27 / 1e-24.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Rontosiemens to Yoctosiemens
Rontosiemens and Yoctosiemens both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Rontosiemens is 1e-27 siemens units, and yoctosiemens is 1e-24 siemens units.
Formula
yoctosiemens = rontosiemens × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 rontosiemens equals 1e-27 base units, and 1 yoctosiemens equals 1e-24 base units, so dividing one by the other gives the direct rontosiemens-to-yoctosiemens factor of 0.001.
Simple example
1 rS × 0.001 = 0.001 yS
1 rontosiemens = 0.001 yoctosiemens.
Real-world example
120 rS × 0.001 = 0.12 yS
120 rontosiemens = 0.12 yoctosiemens.
Conversion table
| Rontosiemens (rS) | Yoctosiemens (yS) |
|---|---|
| 1 rS | 0.001 yS |
| 5 rS | 0.005 yS |
| 12 rS | 0.012 yS |
| 24 rS | 0.024 yS |
| 120 rS | 0.12 yS |
| 240 rS | 0.24 yS |
Reverse conversion: Yoctosiemens to Rontosiemens
0.001 yS × 1000 = 1 rS
0.001 yoctosiemens = 1 rontosiemens.
rontosiemens = yoctosiemens × 1000
For a page dedicated to this direction, see Yoctosiemens to Rontosiemens.
Understanding the Rontosiemens (rS)
Rontosiemens is 1e-27 siemens units.
Understanding the Yoctosiemens (yS)
Yoctosiemens is 1e-24 siemens units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many yoctosiemens are in 1 rontosiemens?
1 rontosiemens equals 0.001 yoctosiemens, using the exact defined conversion factor rather than an estimate.
How do I convert rontosiemens to yoctosiemens?
Multiply the rontosiemens value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert yoctosiemens back to rontosiemens?
Use the reverse factor: 1 yoctosiemens equals 1,000 rontosiemens. You can also use the swap control in the converter above to flip the direction instantly.
What is a rontosiemens?
Rontosiemens (rS) is a unit of electricity.
What is a yoctosiemens?
Yoctosiemens (yS) is a unit of electricity.
Is the rontosiemens to yoctosiemens conversion exact?
Yes. Both rontosiemens and yoctosiemens are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.