Femtosiemens is 1e-15 siemens units.
Femtosiemens to Nanosiemens Converter — fS to nS
Convert Femtosiemens (fS) to Nanosiemens (nS) using the exact conversion factor (1 femtosiemens = 0.000001 nanosiemens). See the formula, worked examples, and conversion table.
Femtosiemens to Nanosiemens 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.
Nanosiemens is 1e-9 siemens units.
Result = input x 1e-15 / 1e-9.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Femtosiemens to Nanosiemens
Femtosiemens and Nanosiemens 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: Femtosiemens is 1e-15 siemens units, and nanosiemens is 1e-9 siemens units.
Formula
nanosiemens = femtosiemens × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 femtosiemens equals 1e-15 base units, and 1 nanosiemens equals 1e-9 base units, so dividing one by the other gives the direct femtosiemens-to-nanosiemens factor of 0.000001.
Simple example
1 fS × 0.000001 = 0.000001 nS
1 femtosiemens = 0.000001 nanosiemens.
Real-world example
120 fS × 0.000001 = 0.00012 nS
120 femtosiemens = 0.00012 nanosiemens.
Conversion table
| Femtosiemens (fS) | Nanosiemens (nS) |
|---|---|
| 1 fS | 0.000001 nS |
| 5 fS | 0.000005 nS |
| 12 fS | 0.000012 nS |
| 24 fS | 0.000024 nS |
| 120 fS | 0.00012 nS |
| 240 fS | 0.00024 nS |
Reverse conversion: Nanosiemens to Femtosiemens
0.000001 nS × 1000000 = 1 fS
0.000001 nanosiemens = 1 femtosiemens.
femtosiemens = nanosiemens × 1000000
For a page dedicated to this direction, see Nanosiemens to Femtosiemens.
Understanding the Femtosiemens (fS)
Femtosiemens is 1e-15 siemens units.
Understanding the Nanosiemens (nS)
Nanosiemens is 1e-9 siemens units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanosiemens are in 1 femtosiemens?
1 femtosiemens equals 0.000001 nanosiemens, using the exact defined conversion factor rather than an estimate.
How do I convert femtosiemens to nanosiemens?
Multiply the femtosiemens value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert nanosiemens back to femtosiemens?
Use the reverse factor: 1 nanosiemens equals 1,000,000 femtosiemens. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtosiemens?
Femtosiemens (fS) is a unit of electricity.
What is a nanosiemens?
Nanosiemens (nS) is a unit of electricity.
Is the femtosiemens to nanosiemens conversion exact?
Yes. Both femtosiemens and nanosiemens 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.
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.