Janskys to W m⁻² Hz⁻¹
Type a value in Jy to get it in W/m²/Hz instantly.
3.63×10⁻³³W/m²/Hz
That's 100× as bright as the faintest galaxies in Hubble’s deep fields, while the faintest star the eye can see is 39,821,684× brighter.
Convert the other way: W/m²/Hz to Jy
What it means
How bright is that source?
AB magnitudes are defined per unit frequency. Vega-system magnitudes differ by a band-dependent offset; references are rough visual values.
The math
How to convert Jy to W/m²/Hz
To convert janskys to W m⁻² Hz⁻¹, multiply by 1×10⁻²⁶.
Example: 3.63×10⁻⁷ Jy × 1×10⁻²⁶ = 3.63×10⁻³³ W/m²/Hz.
In the other direction, 1 W/m²/Hz = 1×10²⁶ Jy.
Every unit
That flux density in every unit
Tables
Jy to W/m²/Hz conversion table
| Jy | W/m²/Hz |
|---|---|
| 3.63×10⁻⁹ Jy | 3.63×10⁻³⁵ W/m²/Hz |
| 2.29×10⁻⁸ Jy | 2.29×10⁻³⁴ W/m²/Hz |
| 3.63×10⁻⁷ Jy | 3.63×10⁻³³ W/m²/Hz |
| 3.63×10⁻⁶ Jy | 3.63×10⁻³² W/m²/Hz |
| 3.63×10⁻⁵ Jy | 3.63×10⁻³¹ W/m²/Hz |
| 0.001 Jy | 1×10⁻²⁹ W/m²/Hz |
| 0.00363 Jy | 3.63×10⁻²⁹ W/m²/Hz |
| 0.363 Jy | 3.63×10⁻²⁷ W/m²/Hz |
| 36.3 Jy | 3.63×10⁻²⁵ W/m²/Hz |
| 3,630 Jy | 3.63×10⁻²³ W/m²/Hz |
| 363,000 Jy | 3.63×10⁻²¹ W/m²/Hz |
W/m²/Hz to Jy conversion table
| W/m²/Hz | Jy |
|---|---|
| 3.63×10⁻³⁵ W/m²/Hz | 3.63×10⁻⁹ Jy |
| 2.29×10⁻³⁴ W/m²/Hz | 2.29×10⁻⁸ Jy |
| 3.63×10⁻³³ W/m²/Hz | 3.63×10⁻⁷ Jy |
| 3.63×10⁻³² W/m²/Hz | 3.63×10⁻⁶ Jy |
| 3.63×10⁻³¹ W/m²/Hz | 3.63×10⁻⁵ Jy |
| 1×10⁻²⁹ W/m²/Hz | 0.001 Jy |
| 3.63×10⁻²⁹ W/m²/Hz | 0.00363 Jy |
| 3.63×10⁻²⁷ W/m²/Hz | 0.363 Jy |
| 3.63×10⁻²⁵ W/m²/Hz | 36.3 Jy |
| 3.63×10⁻²³ W/m²/Hz | 3,630 Jy |
| 3.63×10⁻²¹ W/m²/Hz | 363,000 Jy |
Quick answers
Quick answers
- How many W/m²/Hz is 1 Jy?
- 1 Jy is 1×10⁻²⁶ W/m²/Hz.
- How many W/m²/Hz is 10 Jy?
- 10 Jy is 1×10⁻²⁵ W/m²/Hz.
- How many W/m²/Hz is 3.63×10⁻⁷ Jy?
- 3.63×10⁻⁷ Jy is 3.63×10⁻³³ W/m²/Hz.
The units
About these units
Janskys (Jy)
10⁻²⁶ W m⁻² Hz⁻¹.
W m⁻² Hz⁻¹ (W/m²/Hz)
SI spectral flux density.
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