Angular frequency converted by one revolution equals 2*pi radians.
Radians per second to Femtohertz Converter — rad/s to fHz
Convert Radians per second (rad/s) to Femtohertz (fHz) using the exact conversion factor (1 radians per second = 1.591549e+14 femtohertz). See the formula, worked examples, and conversion table.
Radians per second to Femtohertz converter
Converter
Frequency Converter
Convert hertz, SI frequency prefixes, RPM, beats per minute, and angular frequency.
Context values
Some unit families need one extra value for a physically accurate result.
Femtohertz is 1e-15 hertz units.
Result = input x 0.1591549431 / 1e-15.
Frequency uses hertz as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Radians per second to Femtohertz
Radians per second and Femtohertz both describe how fast something cycles or rotates, and the conversion is a routine part of reading a car tachometer or motor spec sheet against a scientific frequency figure. Specifically: Angular frequency converted by one revolution equals 2*pi radians, and femtohertz is 1e-15 hertz units.
Formula
femtohertz = radians per second × 1.591549e+14
This factor comes from each unit's defined relationship to the category's base unit: 1 radians per second equals 0.159154943092 base units, and 1 femtohertz equals 1e-15 base units, so dividing one by the other gives the direct radians per second-to-femtohertz factor of 1.591549e+14.
Simple example
1 rad/s × 1.591549e+14 = 1.591549e+14 fHz
1 radians per second = 1.591549e+14 femtohertz.
Real-world example
1,000 rad/s × 1.591549e+14 = 1.591549e+17 fHz
1,000 radians per second = 1.591549e+17 femtohertz.
Conversion table
| Radians per second (rad/s) | Femtohertz (fHz) |
|---|---|
| 60 rad/s | 9.549297e+15 fHz |
| 600 rad/s | 9.549297e+16 fHz |
| 1,000 rad/s | 1.591549e+17 fHz |
| 3,000 rad/s | 4.774648e+17 fHz |
| 6,000 rad/s | 9.549297e+17 fHz |
| 10,000 rad/s | 1.591549e+18 fHz |
Reverse conversion: Femtohertz to Radians per second
1.591549e+14 fHz × 6.283185e-15 = 0.9999997292 rad/s
1.591549e+14 femtohertz = 0.9999997292 radians per second.
radians per second = femtohertz × 6.283185e-15
For a page dedicated to this direction, see Femtohertz to Radians per second.
Understanding the Radians per second (rad/s)
Angular frequency converted by one revolution equals 2*pi radians.
Understanding the Femtohertz (fHz)
Femtohertz is 1e-15 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtohertz are in 1 radians per second?
1 radians per second equals 1.591549e+14 femtohertz, using the exact defined conversion factor rather than an estimate.
How do I convert radians per second to femtohertz?
Multiply the radians per second value by 1.591549e+14. The converter above does this instantly to whatever precision you set.
How do I convert femtohertz back to radians per second?
Use the reverse factor: 1 femtohertz equals 6.283185e-15 radians per second. You can also use the swap control in the converter above to flip the direction instantly.
What is a radians per second?
Radians per second (rad/s) is a unit of frequency.
What is a femtohertz?
Femtohertz (fHz) is a unit of frequency.
Is the radians per second to femtohertz conversion exact?
Yes. Both radians per second and femtohertz are defined by fixed standards rather than physical artifacts, so the factor of 1.591549e+14 used above is exact to as many digits as you choose to display.